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Loughrey DG, Jordan C, Ibanez A, Parra MA, Lawlor BA, Reilly RB. Age-related hearing loss associated with differences in the neural correlates of feature binding in visual working memory. Neurobiol Aging 2023; 132:233-245. [PMID: 37866083 DOI: 10.1016/j.neurobiolaging.2023.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/09/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023]
Abstract
The underlying neural mechanisms underpinning the association between age-related hearing loss (ARHL) and dementia remain unclear. A limitation has been the lack of functional neuroimaging studies in ARHL cohorts to help clarify this relationship. In the present study, we investigated the neural correlates of feature binding in visual working memory with ARHL (controls = 14, mild HL = 21, and moderate or greater HL = 23). Participants completed a visual change detection task assessing feature binding while their neural activity was synchronously recorded via high-density electroencephalography. There was no difference in accuracy scores for ARHL groups compared to controls. There was increased electrophysiological activity in those with ARHL, particularly in components indexing the earlier stages of visual cognitive processing. This activity was more pronounced with more severe ARHL and was associated with maintained feature binding. Source space (sLORETA) analyses indicated greater activity in networks modulated by frontoparietal and temporal regions. Our results demonstrate there may be increased involvement of neurocognitive control networks to maintain lower-order neurocognitive processing disrupted by ARHL.
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Affiliation(s)
- David G Loughrey
- Global Brain Health Institute, Trinity College, The University of Dublin, Ireland; Global Brain Health Institute, University of California San Francisco, San Francisco, CA, USA; Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Ireland.
| | - Catherine Jordan
- Global Brain Health Institute, Trinity College, The University of Dublin, Ireland; Global Brain Health Institute, University of California San Francisco, San Francisco, CA, USA
| | - Agustin Ibanez
- Global Brain Health Institute, Trinity College, The University of Dublin, Ireland; Global Brain Health Institute, University of California San Francisco, San Francisco, CA, USA; Cognitive Neuroscience Center, University of San Andrés, Buenos Aires, Argentina; Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Mario A Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
| | - Brian A Lawlor
- Global Brain Health Institute, Trinity College, The University of Dublin, Ireland; Global Brain Health Institute, University of California San Francisco, San Francisco, CA, USA
| | - Richard B Reilly
- Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Ireland; Trinity Centre for Biomedical Engineering, Trinity College, The University of Dublin, Ireland; School of Engineering, Trinity College, The University of Dublin, Ireland; School of Medicine, Trinity College, The University of Dublin, Ireland
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2
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Werrmann M, Niedeggen M. Age-Specific Effects of Visual Feature Binding. Brain Sci 2023; 13:1389. [PMID: 37891758 PMCID: PMC10605270 DOI: 10.3390/brainsci13101389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/20/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023] Open
Abstract
Temporary binding of visual features enables objects to be stored and maintained in the visual working memory as a singular structure, irrespective of its inherent complexity. Although working memory capacity is reduced in aging, previous behavioral studies suggest that binding is preserved. Using event-related brain potentials (ERPs), we tested whether stimulus encoding is different in younger (N = 26, mean age = 28.5) and older (N = 22; mean age = 67.4) participants in a change detection task. The processing costs of binding were defined by the difference between feature-alone (color or shape) and feature-binding (color-shape) conditions. The behavioral data revealed that discrimination ability was reduced in the feature-binding condition, and that this effect was more attenuated in older participants. A corresponding ERP effect was not found in early components related to visual feature detection and processing (posterior N1 and frontal P2). However, the late positive complex (LPC) was more often expressed in the feature-binding condition, and the increase in amplitude was more pronounced in older participants. The LPC can be related to attentional allocation processes which might support the maintenance of the more complex stimulus representation in the binding task. However, the selective neural overactivation in the encoding phase observed in older participants does not prevent swap errors in the subsequent retrieval phase.
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Affiliation(s)
| | - Michael Niedeggen
- Research Unit General Psychology and Neuropsychology, Department of Education and Psychology, Freie Universität Berlin, 14195 Berlin, Germany;
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3
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Werrmann M, Schegolevska A, Eid M, Niedeggen M. Uncovering mnestic problems in help-seeking individuals reporting subjective cognitive complaints. Sci Rep 2023; 13:15266. [PMID: 37709826 PMCID: PMC10502030 DOI: 10.1038/s41598-023-42527-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023] Open
Abstract
In individuals with subjective cognitive impairments (SCI) the risk for the development of a neurodegenerative disease is assumed to be increased. However, it is not clear which factors contribute to the expression of SCI: Is it related to the cognitive resources already challenged, or is the psycho-affective state of more relevance? Using a novel online assessment combining self-report questionnaires and neuropsychological psychometric tests, significant predictors for the level of complaints were identified in two samples of elderly individuals: Help-seekers (HS, n = 48) consulting a memory clinic and a matched sample of non-help-seekers (nHS, n = 48). Based on the results of the online assessment, the SCI level was found to be significantly determined by the psycho-affective state (depressive mood) in the nHS group, whereas cognitive performance (cued recall) was the main predictor in the HS group. The predictive value of recall performance, however, is more-strongly expressed in memory tests which reduce the impact of compensatory strategies (face-name-association vs. word lists). Our results indicate that the problem-focused behavior of help-seeking individuals is also associated with a higher sensitivity for cognitive deficits-which can be uncovered with an appropriate psychometric test. Considering these factors, the conversion risk in individuals with SCI can probably be determined more reliably.
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Affiliation(s)
- M Werrmann
- Division of Experimental Psychology and Neuropsychology, Department of Educational Science and Psychology, Freie Universität Berlin, Habelschwerdter Allee 45, 14195, Berlin, Germany.
| | - A Schegolevska
- Division of Experimental Psychology and Neuropsychology, Department of Educational Science and Psychology, Freie Universität Berlin, Habelschwerdter Allee 45, 14195, Berlin, Germany
| | - M Eid
- Division of Methods and Evaluation, Department of Educational Science and Psychology, Freie Universität Berlin, Berlin, Germany
| | - M Niedeggen
- Division of Experimental Psychology and Neuropsychology, Department of Educational Science and Psychology, Freie Universität Berlin, Habelschwerdter Allee 45, 14195, Berlin, Germany
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4
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Casagrande CC, Rempe MP, Springer SD, Wilson TW. Comprehensive review of task-based neuroimaging studies of cognitive deficits in Alzheimer's disease using electrophysiological methods. Ageing Res Rev 2023; 88:101950. [PMID: 37156399 PMCID: PMC10261850 DOI: 10.1016/j.arr.2023.101950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/27/2023] [Accepted: 05/05/2023] [Indexed: 05/10/2023]
Abstract
With an aging population, cognitive decline and neurodegenerative disorders are an emerging public health crises with enormous, yet still under-recognized burdens. Alzheimer's disease (AD) is the most common type of dementia, and the number of cases is expected to dramatically rise in the upcoming decades. Substantial efforts have been placed into understanding the disease. One of the primary avenues of research is neuroimaging, and while positron emission tomography (PET) and functional magnetic resonance imaging (fMRI) are most common, crucial recent advancements in electrophysiological methods such as magnetoencephalography (MEG) and electroencephalography (EEG) have provided novel insight into the aberrant neural dynamics at play in AD pathology. In this review, we outline task-based M/EEG studies published since 2010 using paradigms probing the cognitive domains most affected by AD, including memory, attention, and executive functioning. Furthermore, we provide important recommendations for adapting cognitive tasks for optimal use in this population and adjusting recruitment efforts to improve and expand future neuroimaging work.
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Affiliation(s)
- Chloe C Casagrande
- Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE 68010, USA
| | - Maggie P Rempe
- Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE 68010, USA; College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Seth D Springer
- Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE 68010, USA; College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Tony W Wilson
- Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE 68010, USA; Department of Pharmacology & Neuroscience, Creighton University, Omaha, NE 68178, USA.
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5
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Legaz A, Prado P, Moguilner S, Báez S, Santamaría-García H, Birba A, Barttfeld P, García AM, Fittipaldi S, Ibañez A. Social and non-social working memory in neurodegeneration. Neurobiol Dis 2023; 183:106171. [PMID: 37257663 DOI: 10.1016/j.nbd.2023.106171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/08/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023] Open
Abstract
Although social functioning relies on working memory, whether a social-specific mechanism exists remains unclear. This undermines the characterization of neurodegenerative conditions with both working memory and social deficits. We assessed working memory domain-specificity across behavioral, electrophysiological, and neuroimaging dimensions in 245 participants. A novel working memory task involving social and non-social stimuli with three load levels was assessed across controls and different neurodegenerative conditions with recognized impairments in: working memory and social cognition (behavioral-variant frontotemporal dementia); general cognition (Alzheimer's disease); and unspecific patterns (Parkinson's disease). We also examined resting-state theta oscillations and functional connectivity correlates of working memory domain-specificity. Results in controls and all groups together evidenced increased working memory demands for social stimuli associated with frontocinguloparietal theta oscillations and salience network connectivity. Canonical frontal theta oscillations and executive-default mode network anticorrelation indexed non-social stimuli. Behavioral-variant frontotemporal dementia presented generalized working memory deficits related to posterior theta oscillations, with social stimuli linked to salience network connectivity. In Alzheimer's disease, generalized working memory impairments were related to temporoparietal theta oscillations, with non-social stimuli linked to the executive network. Parkinson's disease showed spared working memory performance and canonical brain correlates. Findings support a social-specific working memory and related disease-selective pathophysiological mechanisms.
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Affiliation(s)
- Agustina Legaz
- Cognitive Neuroscience Center (CNC), Universidad de San Andres, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Universidad Nacional de Córdoba, Facultad de Psicología, Córdoba, Argentina
| | - Pavel Prado
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile; Escuela de Fonoaudiología, Facultad de Odontología y Ciencias de la Rehabilitación, Universidad San Sebastián, Santiago, Chile
| | - Sebastián Moguilner
- Cognitive Neuroscience Center (CNC), Universidad de San Andres, Buenos Aires, Argentina; Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile; Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, United States; Trinity College Dublin (TCD), Dublin, Ireland
| | | | - Hernando Santamaría-García
- Pontificia Universidad Javeriana, Medical School, Physiology and Psychiatry Departments, Memory and Cognition Center Intellectus, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Agustina Birba
- Cognitive Neuroscience Center (CNC), Universidad de San Andres, Buenos Aires, Argentina; Facultad de Psicología, Universidad de La Laguna, Tenerife, Spain; Instituto Universitario de Neurociencia, Universidad de La Laguna, Tenerife, Spain
| | - Pablo Barttfeld
- Cognitive Science Group. Instituto de Investigaciones Psicológicas (IIPsi), CONICET UNC, Facultad de Psicología, Universidad Nacional de Córdoba, Boulevard de la Reforma esquina Enfermera Gordillo, CP 5000. Córdoba, Argentina
| | - Adolfo M García
- Cognitive Neuroscience Center (CNC), Universidad de San Andres, Buenos Aires, Argentina; Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, United States; Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile; Trinity College Dublin (TCD), Dublin, Ireland
| | - Sol Fittipaldi
- Cognitive Neuroscience Center (CNC), Universidad de San Andres, Buenos Aires, Argentina; Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile; Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, United States; Trinity College Dublin (TCD), Dublin, Ireland.
| | - Agustín Ibañez
- Cognitive Neuroscience Center (CNC), Universidad de San Andres, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile; Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, United States; Trinity College Dublin (TCD), Dublin, Ireland.
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6
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Fittipaldi S, Baez S, Gonzalez-Silva C, Duran-Aniotz C. Latin American women in dementia research: outstanding contributions, barriers, and opportunities from Argentinian, Chilean, and Colombian colleagues. Front Aging Neurosci 2023; 15:1168414. [PMID: 37358953 PMCID: PMC10285056 DOI: 10.3389/fnagi.2023.1168414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Women's contributions to science have been consistently underrepresented throughout history. Despite many efforts and some progresses being made to reduce gender inequity in science, pursuing an academic career across disciplines, including Alzheimer's disease (AD) and other dementias, remains challenging for women. Idiosyncratic difficulties of Latin American countries likely accentuate the gender gap. In this Perspective, we celebrate outstanding contributions from Argentinian, Chilean, and Colombian colleagues in dementia research and discuss barriers and opportunities identified by them. We aim to acknowledge Latin American women's work and bring visibility to the challenges they face throughout their careers in order to inform potential solutions. Also, we highlight the need to perform a systematic assessment of the gender gap in the Latin American dementia community of researchers.
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Affiliation(s)
- Sol Fittipaldi
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile
- Global Brain Health Institute (GBHI), Trinity College Dublin (TCD), Dublin, Ireland
- Cognitive Neuroscience Center (CNC), Universidad de San Andres (UdeSA), Buenos Aires, Argentina
| | - Sandra Baez
- Departamento de Psicología, Universidad de los Andes, Bogotá, Colombia
| | - Carolina Gonzalez-Silva
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile
| | - Claudia Duran-Aniotz
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile
- Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibañez, Santiago, Chile
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7
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Parra MA, Granada J, Fernández G. Memory-driven eye movements prospectively predict dementia in people at risk of Alzheimer's disease. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2022; 14:e12386. [PMID: 36579131 PMCID: PMC9780510 DOI: 10.1002/dad2.12386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/29/2022] [Accepted: 10/21/2022] [Indexed: 12/24/2022]
Abstract
Introduction Oculomotor behaviors linked to cognitive performance revealed neurocognitive features of Alzheimer's disease (AD) that can enhance the accuracy of its assessment and diagnosis. Methods A sample of 107 participants (i.e., 65 mild cognitive impairment [MCI] and 42 controls) were recruited and followed up for 40 months. At baseline, they underwent assessment with the ViewMind digital biomarker, which draws cognitive-related patterns of eye movement while people perform the visual short-term memory binding task. Results Baseline data predicted that 36 patients with MCI would progress to the AD clinical syndrome (ADS Progressing). The remaining 29 MCI patients were predicted to remain as MCI or progress to other forms of dementia. After 40 months of follow-up, 94% of ADS Progressing patients had received a diagnosis of dementia, whereas none of the non-ADS Progressing had. Discussion The analysis of eye movement behavior combined with cognitive markers for AD can effectively predict progression to ADS among patients with MCI.
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Affiliation(s)
- Mario A Parra
- School of Psychological Sciences and HealthUniversity of StrathclydeGlasgowUK,ViewMind IncDelawareUSA
| | | | - Gerardo Fernández
- ViewMind IncDelawareUSA,Laboratorio de Desarrollo en Neurociencias Cognitivas, Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS‐CONICET)Bahía BlancaBuenos AiresArgentina,Axis NeurocienciasBahía BlancaArgentina
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8
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Clark RA, Smith K, Escudero J, Ibáñez A, Parra MA. Robust Assessment of EEG Connectivity Patterns in Mild Cognitive Impairment and Alzheimer's Disease. FRONTIERS IN NEUROIMAGING 2022; 1:924811. [PMID: 37555186 PMCID: PMC10406240 DOI: 10.3389/fnimg.2022.924811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/21/2022] [Indexed: 08/10/2023]
Abstract
The prevalence of dementia, including Alzheimer's disease (AD), is on the rise globally with screening and intervention of particular importance and benefit to those with limited access to healthcare. Electroencephalogram (EEG) is an inexpensive, scalable, and portable brain imaging technology that could deliver AD screening to those without local tertiary healthcare infrastructure. We study EEG recordings of subjects with sporadic mild cognitive impairment (MCI) and prodromal familial, early-onset, AD for the same working memory tasks using high- and low-density EEG, respectively. A challenge in detecting electrophysiological changes from EEG recordings is that noise and volume conduction effects are common and disruptive. It is known that the imaginary part of coherency (iCOH) can generate functional connectivity networks that mitigate against volume conduction, while also erasing true instantaneous activity (zero or π-phase). We aim to expose topological differences in these iCOH connectivity networks using a global network measure, eigenvector alignment (EA), shown to be robust to network alterations that emulate the erasure of connectivities by iCOH. Alignments assessed by EA capture the relationship between a pair of EEG channels from the similarity of their connectivity patterns. Significant alignments-from comparison with random null models-are seen to be consistent across frequency ranges (delta, theta, alpha, and beta) for the working memory tasks, where consistency of iCOH connectivities is also noted. For high-density EEG recordings, stark differences in the control and sporadic MCI results are observed with the control group demonstrating far more consistent alignments. Differences between the control and pre-dementia groupings are detected for significant correlation and iCOH connectivities, but only EA suggests a notable difference in network topology when comparing between subjects with sporadic MCI and prodromal familial AD. The consistency of alignments, across frequency ranges, provides a measure of confidence in EA's detection of topological structure, an important aspect that marks this approach as a promising direction for developing a reliable test for early onset AD.
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Affiliation(s)
- Ruaridh A. Clark
- Centre for Signal and Image Processing, University of Strathclyde, Glasgow, United Kingdom
| | - Keith Smith
- Department of Physics and Mathematics, Nottingham Trent University, Nottingham, United Kingdom
| | - Javier Escudero
- School of Engineering, Institute for Digital Communications, University of Edinburgh, Edinburgh, United Kingdom
| | - Agustín Ibáñez
- Latin American Brain Health Institute, Universidad Adolfo Ibáñez, Santiago, Chile
- Cognitive Neuroscience Center, Universidad de San Andrés & Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Global Brain Health Institute (GBHI), University of California, San Francisco, CA, United States
- Global Brain Health Institute (GBHI), Trinity College, Dublin, Ireland
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Mario A. Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, United Kingdom
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Smith KM, Starr JM, Escudero J, Ibañez A, Parra MA. Abnormal Functional Hierarchies of EEG Networks in Familial and Sporadic Prodromal Alzheimer's Disease During Visual Short-Term Memory Binding. FRONTIERS IN NEUROIMAGING 2022; 1:883968. [PMID: 37555153 PMCID: PMC10406202 DOI: 10.3389/fnimg.2022.883968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/16/2022] [Indexed: 08/10/2023]
Abstract
Alzheimer's Disease (AD) shows both complex alterations of functional dependencies between brain regions and a decreased ability to perform Visual Short-Term Memory Binding (VSTMB) tasks. Recent advances in network neuroscience toward understanding the complexity of hierarchical brain function here enables us to establish a link between these two phenomena. Here, we study data on two types of dementia at Mild Cognitive Impairment (MCI) stage-familial AD patients (E280A mutation of the presenilin-1 gene) and elderly MCI patients at high risk of sporadic AD, both with age-matched controls. We analyzed Electroencephalogram (EEG) signals recorded during the performance of Visual Short-Term Memory (VSTM) tasks by these participants. Functional connectivity was computed using the phase-lag index in Alpha and Beta; and network analysis was employed using network indices of hierarchical spread (degree variance) and complexity. Hierarchical characteristics of EEG functional connectivity networks revealed abnormal patterns in familial MCI VSTMB function and sporadic MCI VSTMB function. The middle-aged familial MCI binding network displayed a larger degree variance in lower Beta compared to healthy controls (p = 0.0051, Cohen's d = 1.0124), while the elderly sporadic MCI binding network displayed greater hierarchical complexity in Alpha (p = 0.0140, Cohen's d = 1.1627). Characteristics in healthy aging were not shown to differ. These results indicate that activity in MCI exhibits cross-frequency network reorganization characterized by increased heterogeneity of node roles in the functional hierarchy. Aging itself is not found to cause VSTM functional hierarchy differences.
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Affiliation(s)
- Keith M. Smith
- Department of Physics and Mathematics, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - John M. Starr
- Alzheimer Scotland Dementia Research Centre, School of Philosophy, Psychology and Language Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Javier Escudero
- School of Engineering, Institute for Digital Communications, University of Edinburgh, Edinburgh, United Kingdom
| | - Agustin Ibañez
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibañez, Santiago, Chile
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
- Global Brain Health Institute, UCSF, San Francisco, CA, United States
- Trinity College Institute of Neuroscience, Trintity College Dublin, Dublin, Ireland
| | - Mario A. Parra
- Trinity College Institute of Neuroscience, Trintity College Dublin, Dublin, Ireland
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, United Kingdom
- Neuroprogressive and Dementia Network, NHS Scotland, Glasgow, United Kingdom
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10
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Prado P, Birba A, Cruzat J, Santamaría-García H, Parra M, Moguilner S, Tagliazucchi E, Ibáñez A. Dementia ConnEEGtome: Towards multicentric harmonization of EEG connectivity in neurodegeneration. Int J Psychophysiol 2022; 172:24-38. [PMID: 34968581 PMCID: PMC9887537 DOI: 10.1016/j.ijpsycho.2021.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/26/2021] [Accepted: 12/19/2021] [Indexed: 02/02/2023]
Abstract
The proposal to use brain connectivity as a biomarker for dementia phenotyping can be potentiated by conducting large-scale multicentric studies using high-density electroencephalography (hd- EEG). Nevertheless, several barriers preclude the development of a systematic "ConnEEGtome" in dementia research. Here we review critical sources of variability in EEG connectivity studies, and provide general guidelines for multicentric protocol harmonization. We describe how results can be impacted by the choice for data acquisition, and signal processing workflows. The implementation of a particular processing pipeline is conditional upon assumptions made by researchers about the nature of EEG. Due to these assumptions, EEG connectivity metrics are typically applicable to restricted scenarios, e.g., to a particular neurocognitive disorder. "Ground truths" for the choice of processing workflow and connectivity analysis are impractical. Consequently, efforts should be directed to harmonizing experimental procedures, data acquisition, and the first steps of the preprocessing pipeline. Conducting multiple analyses of the same data and a proper integration of the results need to be considered in additional processing steps. Furthermore, instead of using a single connectivity measure, using a composite metric combining different connectivity measures brings a powerful strategy to scale up the replicability of multicentric EEG connectivity studies. These composite metrics can boost the predictive strength of diagnostic tools for dementia. Moreover, the implementation of multi-feature machine learning classification systems that include EEG-based connectivity analyses may help to exploit the potential of multicentric studies combining clinical-cognitive, molecular, genetics, and neuroimaging data towards a multi-dimensional characterization of the dementia.
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Affiliation(s)
- Pavel Prado
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile
| | - Agustina Birba
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile,Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Josefina Cruzat
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile
| | - Hernando Santamaría-García
- Pontificia Universidad Javeriana, Medical School, Physiology and Psychiatry Departments, Memory and Cognition Center Intellectus, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Mario Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, United Kingdom
| | - Sebastian Moguilner
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile,Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina,Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), California, USA,Trinity College Dublin (TCD), Dublin, Ireland
| | - Enzo Tagliazucchi
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile,Departamento de Física, Universidad de Buenos Aires and Instituto de Fisica de Buenos Aires (IFIBA -CONICET), Buenos Aires, Argentina
| | - Agustín Ibáñez
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile,Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina,Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), California, USA,Trinity College Dublin (TCD), Dublin, Ireland,Corresponding author at: Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago de Chile, Chile., (A. Ibáñez)
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11
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Deep learning helps EEG signals predict different stages of visual processing in the human brain. Biomed Signal Process Control 2021. [DOI: 10.1016/j.bspc.2021.102996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Fernández G, Parra MA. Oculomotor Behaviors and Integrative Memory Functions in the Alzheimer's Clinical Syndrome. J Alzheimers Dis 2021; 82:1033-1044. [PMID: 34151787 DOI: 10.3233/jad-201189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Biological information drawn from eye-tracking metrics is providing evidence regarding drivers of cognitive decline in Alzheimer's disease. In particular, pupil size has proved useful to investigate cognitive performance during online activities. OBJECTIVE To investigate the oculomotor correlates of impaired performance of patients with mild Alzheimer's Clinical Syndrome (ACS) on a recently developed memory paradigm, namely the Short-Term Memory Binding Test (STMBT). METHODS We assessed a sample of eighteen healthy controls (HC) and eighteen patients with a diagnosis of mild ACS with the STMBT while we recorded their oculomotor behaviors using pupillometry and eye-tracking. RESULTS As expected, a group (healthy controls versus ACS) by condition (Unbound Colours versus Bound Colours) interaction was found whereby behavioral group differences were paramount in the Bound Colours condition. Healthy controls' pupils dilated significantly more in the Bound Colours than in the Unbound Colours condition, a discrepancy not observed in ACS patients. Furthermore, ROC analysis revealed the abnormal pupil behaviors distinguished ACS patients from healthy controls with values of sensitivity and specify of 100%, thus outperforming both recognition scores and gaze duration. CONCLUSION The biological correlates of Short-Term Memory Binding impairments appear to involve a network much wider than we have thought to date, which expands across cortical and subcortical structures. We discuss these findings focusing on their implications for our understanding of neurocognitive phenotypes in the preclinical stages of Alzheimer's disease and potential development of cognitive biomarkers that can support ongoing initiatives to prevent dementia.
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Affiliation(s)
- Gerardo Fernández
- Chief Scientific Officer, ViewMind Inc., New York, NY, USA.,Axis Neurociencias, Bahía Blanca, Argentina.,Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
| | - Mario A Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
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13
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Ibanez A, Parra MA, Butler C. The Latin America and the Caribbean Consortium on Dementia (LAC-CD): From Networking to Research to Implementation Science. J Alzheimers Dis 2021; 82:S379-S394. [PMID: 33492297 PMCID: PMC8293660 DOI: 10.3233/jad-201384] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In comparison with other regions, dementia prevalence in Latin America is growing rapidly, along with the consequent clinical, social, and economic burden upon patients and their families. The combination of fragile health care systems, large social inequalities, and isolated clinical and research initiatives makes the coordination of efforts imperative. The Latin America and the Caribbean Consortium on Dementia (LAC-CD) is a regional organization overseeing and promoting clinical and research activities on dementia. Here, we first provide an overview of the consortium, highlighting the antecedents and current mission. Then, we present the consortium’s regional research, including the multi-partner consortium to expand dementia research in Latin America (ReDLat), which aims to identify the unique genetic, social, and economic factors that drive Alzheimer’s and frontotemporal dementia presentation in LAC relative to the US. We describe an extension of ReDLat which aims to develop affordable markers of disease subtype and severity using high density EEG. We introduce current initiatives promoting regional diagnosis, visibility, and capacity, including the forthcoming launch of the Latin American Brain Health Institute (BrainLat). We discuss LAC-CD-led advances in brain health diplomacy, including an assessment of responses to the impact of COVID-19 on people with dementia and examining the knowledge of public policies among experts in the region. Finally, we present the current knowledge-to-action framework, which paves the way for a future regional action plan. Coordinated actions are crucial to forging strong regional bonds, supporting the implementation of regional dementia plans, improving health systems, and expanding research collaborations across Latin America.
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Affiliation(s)
- Agustin Ibanez
- Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), San Francisco, CA, USA.,Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Universidad Autónoma del Caribe, Barranquilla, Barranquilla, Colombia.,Latin American Institute for Brain Health (BrainLat), Center for Social and Cognitive Neuroscience (CSCN), Universidad Adolfo Ibanez, Santiago de Chile, Chile
| | - Mario A Parra
- Universidad Autónoma del Caribe, Barranquilla, Barranquilla, Colombia.,School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
| | - Christopher Butler
- Department of Brain Sciences, Imperial College London, UK.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.,Instituto de Neurología Cognitiva, Buenos Aires, Argentina.,Departamento de Neurología, Pontificia Universidad de Chile, Santiago, Chile
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14
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Cecchini MA, Yassuda MS, Squarzoni P, Coutinho AM, de Paula Faria D, Duran FLDS, Costa NAD, Porto FHDG, Nitrini R, Forlenza OV, Brucki SMD, Buchpiguel CA, Parra MA, Busatto GF. Deficits in short-term memory binding are detectable in individuals with brain amyloid deposition in the absence of overt neurodegeneration in the Alzheimer's disease continuum. Brain Cogn 2021; 152:105749. [PMID: 34022637 DOI: 10.1016/j.bandc.2021.105749] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/24/2021] [Accepted: 05/03/2021] [Indexed: 10/21/2022]
Abstract
The short-term memory binding (STMB) test involves the ability to hold in memory the integration between surface features, such as shapes and colours. The STMB test has been used to detect Alzheimer's disease (AD) at different stages, from preclinical to dementia, showing promising results. The objective of the present study was to verify whether the STMB test could differentiate patients with distinct biomarker profiles in the AD continuum. The sample comprised 18 cognitively unimpaired (CU) participants, 30 mild cognitive impairment (MCI) and 23 AD patients. All participants underwent positron emission tomography (PET) with Pittsburgh compound-B labelled with carbon-11 ([11C]PIB) assessing amyloid beta (Aβ) aggregation (A) and 18fluorine-fluorodeoxyglucose ([18F]FDG)-PET assessing neurodegeneration (N) (A-N- [n = 35]); A+N- [n = 11]; A+ N+ [n = 19]). Participants who were negative and positive for amyloid deposition were compared in the absence (A-N- vs. A+N-) of neurodegeneration. When compared with the RAVLT and SKT memory tests, the STMB was the only cognitive task that differentiated these groups, predicting the group outcome in logistic regression analyses. The STMB test showed to be sensitive to the signs of AD pathology and may represent a cognitive marker within the AD continuum.
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Affiliation(s)
- Mario Amore Cecchini
- Human Cognitive Neuroscience, Psychology, University of Edinburgh, Edinburgh, United Kingdom
| | - Mônica Sanches Yassuda
- Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil; Gerontology, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil.
| | - Paula Squarzoni
- Laboratory of Psychiatric Neuroimaging (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Artur Martins Coutinho
- Laboratory of Psychiatric Neuroimaging (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil; Laboratory of Nuclear Medicine (LIM43), Centro de Medicina Nuclear, Department of Radiology and Oncology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Daniele de Paula Faria
- Laboratory of Neuroscience (LIM 27), Department of Psychiatry, School of Medicine, University of São Paulo, São Paulo, Brazil; Núcleo de Apoio a Pesquisa em Neurociência Aplicada (NAPNA), University of São Paulo, São Paulo, Brazil
| | - Fábio Luiz de Souza Duran
- Laboratory of Psychiatric Neuroimaging (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Naomi Antunes da Costa
- Laboratory of Psychiatric Neuroimaging (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Fábio Henrique de Gobbi Porto
- Laboratory of Psychiatric Neuroimaging (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Ricardo Nitrini
- Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Orestes Vicente Forlenza
- Laboratory of Neuroscience (LIM 27), Department of Psychiatry, School of Medicine, University of São Paulo, São Paulo, Brazil
| | | | - Carlos Alberto Buchpiguel
- Laboratory of Nuclear Medicine (LIM43), Centro de Medicina Nuclear, Department of Radiology and Oncology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Mario A Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, United Kingdom
| | - Geraldo F Busatto
- Laboratory of Psychiatric Neuroimaging (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil; Núcleo de Apoio a Pesquisa em Neurociência Aplicada (NAPNA), University of São Paulo, São Paulo, Brazil
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15
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Gellersen HM, Coughlan G, Hornberger M, Simons JS. Memory precision of object-location binding is unimpaired in APOE ε4-carriers with spatial navigation deficits. Brain Commun 2021; 3:fcab087. [PMID: 33987536 PMCID: PMC8108563 DOI: 10.1093/braincomms/fcab087] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/09/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
Research suggests that tests of memory fidelity, feature binding and spatial navigation are promising for early detection of subtle behavioural changes related to Alzheimer's disease. In the absence of longitudinal data, one way of testing the early detection potential of cognitive tasks is through the comparison of individuals at different genetic risk for Alzheimer's dementia. Most studies have done so using samples aged 70 years or older. Here, we tested whether memory fidelity of long-term object-location binding may be a sensitive marker even among cognitively healthy individuals in their mid-60s by comparing participants at low and higher risk based on presence of the ε4-allele of the apolipoprotein gene (n = 26 ε3ε3, n = 20 ε3ε4 carriers). We used a continuous report paradigm in a visual memory task that required participants to recreate the spatial position of objects in a scene. We employed mixture modelling to estimate the two distinct memory processes that underpin the trial-by-trial variation in localization errors: retrieval success which indexes the proportion of trials where participants recalled any information about an object's position and the precision with which participants retrieved this information. Prior work has shown that these memory paradigms that separate retrieval success from precision are capable of detecting subtle differences in mnemonic fidelity even when retrieval success could not. Nonetheless, Bayesian analyses found good evidence that ε3ε4 carriers did not remember fewer object locations [F(1, 42) = 0.450, P = 0.506, BF01 = 3.02], nor was their precision for the spatial position of objects reduced compared to ε3ε3 carriers [F(1, 42) = 0.12, P = 0.726, BF01 = 3.19]. Because the participants in the sample presented here were a subset of a study on apolipoprotein ε4-carrier status and spatial navigation in the Sea Hero Quest game [Coughlan et al., 2019. PNAS, 116(9)], we obtained these data to contrast genetic effects on the two tasks within the same sample (n = 33). Despite the smaller sample size, wayfinding deficits among ε3ε4 carriers could be replicated [F(1, 33) = 5.60, P = 0.024, BF10 = 3.44]. Object-location memory metrics and spatial navigation scores were not correlated (all r < 0.25, P > 0.1, 0 < BF10 < 3). These findings show spared object-location binding in the presence of a detrimental apolipoprotein ε4 effect on spatial navigation. This suggests that the sensitivity of memory fidelity and binding tasks may not extend to individuals with one ε4-allele in their early to mid-60s. The results provide further support to prior proposals that spatial navigation may be a sensitive marker for the earliest cognitive changes in Alzheimer's disease, even before episodic memory.
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Affiliation(s)
- Helena M Gellersen
- Department of Psychology, University of Cambridge, Cambridge CB2 3EB, UK
| | - Gillian Coughlan
- Rotman Research Institute, Baycrest Hospital, Toronto, ON M6A 1W1, Canada
| | | | - Jon S Simons
- Department of Psychology, University of Cambridge, Cambridge CB2 3EB, UK
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16
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Kozlova I, Parra MA, Titova N, Gantman M, Sala SD. Alzheimer's Disease and Parkinson Dementia Distinguished by Cognitive Marker. Arch Clin Neuropsychol 2021; 36:307-315. [PMID: 32101280 DOI: 10.1093/arclin/acz082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Temporary memory binding (TMB) has been shown to be specifically affected by Alzheimer's disease (AD) when it is assessed via free recall and titrating the task demands to equate baseline performance across patients. METHODS Patients with Parkinson's disease (PD) were subdivided into patients with and without cognitive impairment and compared with AD and amnestic mild cognitive impairment (aMCI) patients on their performance on the TMB. RESULTS The results show that only patients with AD dementia present with impaired TMB performance. Receiver operating characteristic curve analyses showed that TMB holds high sensitivity and specificity for aMCI and AD relative to PD groups and healthy controls. CONCLUSION The TMB is sensitive to the neurodegenerative mechanisms leading to AD dementia but not to those underpinning PD dementia. As such, TMB task can aid the differential diagnosis of these common forms of dementia.
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Affiliation(s)
- Irina Kozlova
- Human Cognitive Neuroscience, Psychology Department, University of Edinburgh, UK
| | - Mario A Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, UK
- Alzheimer's Scotland Dementia Research Centre, Edinburgh University, UK
- Autonomous University of the Caribbean, Barranquilla, Colombia
| | - Nataliya Titova
- Neurology and Neurosurgery Department, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Maria Gantman
- Department of Alzheimer's Diseases and Related Disorders, Mental Health Research Centre, Moscow, Russia
| | - Sergio Della Sala
- Human Cognitive Neuroscience, Psychology Department, University of Edinburgh, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, UK
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17
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Manga A, Madurka P, Vakli P, Kirwan CB, Vidnyánszky Z. Investigation of the relationship between visual feature binding in short- and long-term memory in healthy aging. Learn Mem 2021; 28:109-113. [PMID: 33723030 PMCID: PMC7970738 DOI: 10.1101/lm.052548.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/16/2021] [Indexed: 11/24/2022]
Abstract
Binding visual features into coherent object representations is essential both in short- and long-term memory. However, the relationship between feature binding processes at different memory delays remains unexplored. Here, we addressed this question by using the Mnemonic Similarity Task and a delayed-estimation working memory task on a large sample of older adults. The results revealed that higher propensity to misbind object features in working memory is associated with lower lure discrimination performance in the mnemonic similarity task, suggesting that shared feature binding processes underlie the formation of coherent short- and long-term visual object memory representations.
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Affiliation(s)
- Annamária Manga
- Brain Imaging Centre, Research Centre for Natural Sciences, Budapest 1117, Hungary
- Department of Cognitive Science, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Petra Madurka
- Brain Imaging Centre, Research Centre for Natural Sciences, Budapest 1117, Hungary
| | - Pál Vakli
- Brain Imaging Centre, Research Centre for Natural Sciences, Budapest 1117, Hungary
| | - C Brock Kirwan
- Department of Psychology and Neuroscience Center, Brigham Young University, Provo, Utah 84602, USA
| | - Zoltán Vidnyánszky
- Brain Imaging Centre, Research Centre for Natural Sciences, Budapest 1117, Hungary
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18
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Ibanez A, Yokoyama JS, Possin KL, Matallana D, Lopera F, Nitrini R, Takada LT, Custodio N, Sosa Ortiz AL, Avila-Funes JA, Behrens MI, Slachevsky A, Myers RM, Cochran JN, Brusco LI, Bruno MA, Brucki SMD, Pina-Escudero SD, Okada de Oliveira M, Donnelly Kehoe P, Garcia AM, Cardona JF, Santamaria-Garcia H, Moguilner S, Duran-Aniotz C, Tagliazucchi E, Maito M, Longoria Ibarrola EM, Pintado-Caipa M, Godoy ME, Bakman V, Javandel S, Kosik KS, Valcour V, Miller BL. The Multi-Partner Consortium to Expand Dementia Research in Latin America (ReDLat): Driving Multicentric Research and Implementation Science. Front Neurol 2021; 12:631722. [PMID: 33776890 PMCID: PMC7992978 DOI: 10.3389/fneur.2021.631722] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/15/2021] [Indexed: 12/17/2022] Open
Abstract
Dementia is becoming increasingly prevalent in Latin America, contrasting with stable or declining rates in North America and Europe. This scenario places unprecedented clinical, social, and economic burden upon patients, families, and health systems. The challenges prove particularly pressing for conditions with highly specific diagnostic and management demands, such as frontotemporal dementia. Here we introduce a research and networking initiative designed to tackle these ensuing hurdles, the Multi-partner consortium to expand dementia research in Latin America (ReDLat). First, we present ReDLat's regional research framework, aimed at identifying the unique genetic, social, and economic factors driving the presentation of frontotemporal dementia and Alzheimer's disease in Latin America relative to the US. We describe ongoing ReDLat studies in various fields and ongoing research extensions. Then, we introduce actions coordinated by ReDLat and the Latin America and Caribbean Consortium on Dementia (LAC-CD) to develop culturally appropriate diagnostic tools, regional visibility and capacity building, diplomatic coordination in local priority areas, and a knowledge-to-action framework toward a regional action plan. Together, these research and networking initiatives will help to establish strong cross-national bonds, support the implementation of regional dementia plans, enhance health systems' infrastructure, and increase translational research collaborations across the continent.
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Affiliation(s)
- Agustin Ibanez
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- School of Psychology, Center for Social and Cognitive Neuroscience, Latin American Institute for Brain Health (BrainLat), Universidad Adolfo Ibanez, Adolfo Ibanez University, Santiago, Chile
| | - Jennifer S. Yokoyama
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States
| | - Katherine L. Possin
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
| | - Diana Matallana
- Psychiatry Department, School of Medicine, Aging Institute, Pontificia Universidad Javeriana, Bogotá, Colombia
- Memory and Cognition Clinic, Intellectus, Hospital Universitario San Ignacio, Bogotá, Colombia
- Mental Health Unit, Hospital Universitario Santa Fe de Bogotá, Bogotá, Colombia
| | - Francisco Lopera
- Grupo de Neurociencias de Antioquia, Universidad de Antioquia, Medellín, Colombia
| | - Ricardo Nitrini
- Cognitive and Behavioral Neurology Unit, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, Brazil
| | - Leonel T. Takada
- Cognitive and Behavioral Neurology Unit, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, Brazil
| | - Nilton Custodio
- Unit Cognitive Impairment and Dementia Prevention, Cognitive Neurology Center, Peruvian Institute of Neurosciences, Lima, Perú
| | - Ana Luisa Sosa Ortiz
- Instituto Nacional de Neurologia y Neurocirugia MVS, Universidad Nacional Autonoma de Mexico, Mexico, Mexico
| | - José Alberto Avila-Funes
- Department of Geriatrics, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico, Mexico
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux, France
| | - Maria Isabel Behrens
- Centro de Investigación Clínica Avanzada, Hospital Clínico, Facultad de Medicina Universidad de Chile, Santiago, Chile
- Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile, Santiago, Chile
- Departamento de Neurociencia, Facultad de Medicina Universidad de Chile, Santiago, Chile
- Clínica Alemana Santiago, Universidad del Desarrollo, Santiago, Chile
| | - Andrea Slachevsky
- Clínica Alemana Santiago, Universidad del Desarrollo, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory, Physiopathology Department, Institute of Biomedical Sciences, Neuroscience and East Neuroscience, Santiago, Chile
- Faculty of Medicine, University of Chile, Santiago, Chile
- Memory and Neuropsychiatric Clinic (CMYN) Neurology Department, Faculty of Medicine, Hospital del Salvador, University of Chile, Santiago, Chile
| | - Richard M. Myers
- Hudson Alpha Institute for Biotechnology, Huntsville, AL, United States
| | | | - Luis Ignacio Brusco
- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- ALZAR – Alzheimer, Buenos Aires, Argentina
| | - Martin A. Bruno
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- Facultad Ciencias Médicas, Instituto Ciencias Biomédicas, Universidad Católica de Cuyo, San Juan, Argentina
| | - Sonia M. D. Brucki
- Cognitive and Behavioral Neurology Unit, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, Brazil
- Hospital Santa Marcelina, São Paulo, São Paulo, Brazil
| | - Stefanie Danielle Pina-Escudero
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
| | - Maira Okada de Oliveira
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Cognitive and Behavioral Neurology Unit, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, Brazil
- Hospital Santa Marcelina, São Paulo, São Paulo, Brazil
| | - Patricio Donnelly Kehoe
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- Multimedia Signal Processing Group - Neuroimage Division, French-Argentine International Center for Information and Systems Sciences, Rosario, Argentina
| | - Adolfo M. Garcia
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- Faculty of Education, National University of Cuyo, Mendoza, Argentina
| | | | - Hernando Santamaria-Garcia
- Memory and Cognition Clinic, Intellectus, Hospital Universitario San Ignacio, Bogotá, Colombia
- Ph.D. Program in Neuroscience, Department of Psychiatry, Physiology, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Sebastian Moguilner
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
| | - Claudia Duran-Aniotz
- School of Psychology, Center for Social and Cognitive Neuroscience, Latin American Institute for Brain Health (BrainLat), Universidad Adolfo Ibanez, Adolfo Ibanez University, Santiago, Chile
| | - Enzo Tagliazucchi
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Marcelo Maito
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
| | | | - Maritza Pintado-Caipa
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Unit Cognitive Impairment and Dementia Prevention, Cognitive Neurology Center, Peruvian Institute of Neurosciences, Lima, Perú
| | - Maria Eugenia Godoy
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
| | - Vera Bakman
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
| | - Shireen Javandel
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
| | - Kenneth S. Kosik
- Department of Molecular, Cellular, and Developmental Biology, Neuroscience Research Institute, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Victor Valcour
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
| | - Bruce L. Miller
- The Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, CA, United States
- The Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
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Parra MA, Baez S, Sedeño L, Gonzalez Campo C, Santamaría‐García H, Aprahamian I, Bertolucci PHF, Bustin J, Camargos Bicalho MA, Cano‐Gutierrez C, Caramelli P, Chaves MLF, Cogram P, Beber BC, Court FA, de Souza LC, Custodio N, Damian A, de la Cruz M, Diehl Rodriguez R, Brucki SMD, Fajersztajn L, Farías GA, De Felice FG, Ferrari R, de Oliveira FF, Ferreira ST, Ferretti C, Figueredo Balthazar ML, Ferreira Frota NA, Fuentes P, García AM, Garcia PJ, de Gobbi Porto FH, Duque Peñailillo L, Engler HW, Maier I, Mata IF, Gonzalez‐Billault C, Lopez OL, Morelli L, Nitrini R, Quiroz YT, Guerrero Barragan A, Huepe D, Pio FJ, Suemoto CK, Kochhann R, Kochen S, Kumfor F, Lanata S, Miller B, Mansur LL, Hosogi ML, Lillo P, Llibre Guerra J, Lira D, Lopera F, Comas A, Avila‐Funes JA, Sosa AL, Ramos C, Resende EDPF, Snyder HM, Tarnanas I, Yokoyama J, Llibre J, Cardona JF, Possin K, Kosik KS, Montesinos R, Moguilner S, Solis PCL, Ferretti‐Rebustini REDL, Ramirez JM, Matallana D, Mbakile‐Mahlanza L, Marques Ton AM, Tavares RM, Miotto EC, Muniz‐Terrera G, Muñoz‐Nevárez LA, Orozco D, Okada de Oliveira M, Piguet O, Pintado Caipa M, Piña Escudero SD, Schilling LP, Rodrigues Palmeira AL, Yassuda MS, Santacruz‐Escudero JM, Serafim RB, Smid J, Slachevsky A, Serrano C, Soto‐Añari M, Takada LT, Grinberg LT, Teixeira AL, Barbosa MT, Trépel D, Ibanez A. Dementia in Latin America: Paving the way toward a regional action plan. Alzheimers Dement 2021; 17:295-313. [PMID: 33634602 PMCID: PMC7984223 DOI: 10.1002/alz.12202] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 12/12/2022]
Abstract
Across Latin American and Caribbean countries (LACs), the fight against dementia faces pressing challenges, such as heterogeneity, diversity, political instability, and socioeconomic disparities. These can be addressed more effectively in a collaborative setting that fosters open exchange of knowledge. In this work, the Latin American and Caribbean Consortium on Dementia (LAC-CD) proposes an agenda for integration to deliver a Knowledge to Action Framework (KtAF). First, we summarize evidence-based strategies (epidemiology, genetics, biomarkers, clinical trials, nonpharmacological interventions, networking, and translational research) and align them to current global strategies to translate regional knowledge into transformative actions. Then we characterize key sources of complexity (genetic isolates, admixture in populations, environmental factors, and barriers to effective interventions), map them to the above challenges, and provide the basic mosaics of knowledge toward a KtAF. Finally, we describe strategies supporting the knowledge creation stage that underpins the translational impact of KtAF.
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Affiliation(s)
- Mario Alfredo Parra
- School of Psychological Sciences and HealthGraham Hills BuildingGlasgow, G1 1QE, UK, Universidad Autónoma del CaribePrograma de PsicologíaUniversity of StrathclydeBarranquillaColombia
| | | | - Lucas Sedeño
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)Buenos AiresArgentina
| | - Cecilia Gonzalez Campo
- Cognitive Neuroscience Center (CNC)Universidad de San AndresConsejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)Buenos AiresArgentina
| | - Hernando Santamaría‐García
- Pontificia Universidad JaverianaMedical School, Physiology and Psychiatry DepartmentsMemory and Cognition Center IntellectusHospital Universitario San IgnacioBogotáColombia
| | - Ivan Aprahamian
- Department of Internal MedicineFaculty of Medicine of JundiaíGroup of Investigation on Multimorbidity and Mental Health in Aging (GIMMA)JundiaíState of São PauloBrazil
| | - Paulo HF Bertolucci
- Department of Neurology and NeurosurgeryEscola Paulista de MedicinaFederal University of São Paulo ‐ UNIFESPSão PauloBrazil
| | - Julian Bustin
- INECO FoundationInstitute of Cognitive and Translational Neuroscience (INCYT)Favaloro UniversityBuenos AiresArgentina
| | | | - Carlos Cano‐Gutierrez
- Medical SchoolGeriatric Unit, Memory and Cognition Center‐IntellectusAging InstituteHospital Universitario San IgnacioPontificia Universidad JaverianaBogotáColombia
| | - Paulo Caramelli
- Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Marcia L. F. Chaves
- Neurology ServiceHospital de Clínicas de Porto Alegre e Universidade Federal do Rio Grande do SulBrazil
| | - Patricia Cogram
- Laboratory of Molecular NeuropsychiatryINECO FoundationNational Scientific and Technical Research CouncilInstitute of Cognitive and Translational Neuroscience (INCyT)Favaloro UniversityBuenos AiresArgentina
| | - Bárbara Costa Beber
- Department of Speech and Language PathologyAtlantic Fellow for Equity in Brain HealthFederal University of Health Sciences of Porto Alegre (UFCSPA)Porto AlegreBrazil
| | - Felipe A. Court
- Center for Integrative BiologyFaculty of SciencesFONDAP Center for GeroscienceBrain Health and Metabolism, Santiago, Chile, The Buck Institute for Research on AgingUniversidad Mayor, ChileNovatoCAUSA
| | | | - Nilton Custodio
- Unit Cognitive Impairment and Dementia PreventionCognitive Neurology CenterPeruvian Institute of NeurosciencesLimaPerú
| | - Andres Damian
- Centro Uruguayo de Imagenología Molecular (CUDIM)Centro de Medicina Nuclear e Imagenología MolecularHospital de ClínicasUniversidad de la RepúblicaMontevideoUruguay
| | - Myriam de la Cruz
- Global Brain Health Institute, University of CaliforniaSan FranciscoUSA
| | - Roberta Diehl Rodriguez
- Behavioral and Cognitive Neurology UnitDepartment of Neurology and LIM 22University of São PauloSão PauloBrazil
| | | | - Lais Fajersztajn
- Laboratory of Experimental Air Pollution (LIM05)Department of PathologySchool of MedicineGlobal Brain Health Institute, University of CaliforniaSan Francisco (UCSF)University of São PauloSão PauloSao PauloBrazil
| | - Gonzalo A. Farías
- Department Neurology and Neurosurgery North/Department of NeurosciencesCenter for Advanced Clinical Research (CICA)Faculty of MedicineUniversidad de ChileSantiagoChile
| | | | - Raffaele Ferrari
- Department of Neurodegenerative DiseaseUniversity College LondonLondonESUK
| | - Fabricio Ferreira de Oliveira
- Department of Neurology and NeurosurgeryEscola Paulista de MedicinaFederal University of São Paulo ‐ UNIFESPSão PauloBrazil
| | - Sergio T. Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis & Institute of Biophysics Carlos Chagas FilhoFederal University of Rio de JaneiroRio de JaneiroRJBrazil
| | - Ceres Ferretti
- Division of NeurologyUniversity of São PauloSão PauloBrazil
| | | | | | - Patricio Fuentes
- Geriatrics Section Clinical Hospital University of Chile, Santos Dumont 999 IndependenciaSantiagoChile
| | - Adolfo M. García
- Cognitive Neuroscience Center (CNC)Faculty of EducationNational University of Cuyo (UNCuyo)Universidad de San Andres. National Scientific and Technical Research Council (CONICET)MendozaArgentina
| | | | - Fábio Henrique de Gobbi Porto
- Laboratory of Psychiatric Neuroimaging (LIM‐21)Instituto de PsiquiatriaHospital das Clinicas HCFMUSPFaculdade de MedicinaUniversidade de Sao PauloSao PauloSao PauloBrazil
| | | | | | | | - Ignacio F. Mata
- Department of Genomic MedicineLerner Research InstituteCleveland ClinicOHUSA
| | - Christian Gonzalez‐Billault
- Center for GeroscienceBrain Health and Metabolism (GERO), Santiago, Chile, and Department of Biology, Faculty of SciencesUniversity of ChileSantiagoChile
| | - Oscar L. Lopez
- Alzheimer's Disease Research CenterUniversity of PittsburghPittsburghPAUSA
| | - Laura Morelli
- Fundacion Instituto Leloir‐IIBBA‐CONICET. AveArgentina
| | - Ricardo Nitrini
- Department of NeurologyUniversity of São Paulo Medical SchoolSão PauloBrazil
| | | | - Alejandra Guerrero Barragan
- Trinity College Dublin, Dublin, Departamento de Neurologia Hospital Occidente de KennedyGlobal Brain Health InstituteUniversidad de la SabanaBogotaColombia
| | - David Huepe
- Center for Social and Cognitive Neuroscience (CSCN)School of PsychologyUniversidad Adolfo IbañezSantiagoChile
| | - Fabricio Joao Pio
- Department of NeurologyHospital Governador Celso RamosFlorianopolisBrazil
| | | | - Renata Kochhann
- Graduate Program in PsychologySchool of Health SciencesHospital Moinhos de VentoPontifical Catholic University of Rio Grande do Sul—PUCRS and Researcher OfficePorto AlegreBrazil
| | - Silvia Kochen
- Neurosciences and Complex Systems Unit (EnyS), CONICET, Hosp, El Cruce “N. Kirchner”, Univ. National A, Jauretche (UNAJ), F. Varela, Prov. Buenos Aires. Fac. MedicineUniv Nacional de Buenos Aires (UBA)Buenos AiresArgentina
| | - Fiona Kumfor
- Brain and Mind Centre and School of PsychologyUniversity of SydneySydneyNSWAustralia
| | - Serggio Lanata
- UCSF Department of NeurologyMemory and Aging CenterUCSFSan FranciscoCaliforniaUS
| | - Bruce Miller
- UCSF Department of NeurologyMemory and Aging CenterUCSFSan FranciscoCaliforniaUS
| | | | - Mirna Lie Hosogi
- Behavioral and Cognitive Unit of Department of NeurologyUniversity of São Paulo School of MedicineSao PauloBrazil
| | - Patricia Lillo
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile, Departamento de Neurología Sur/Departamento de Neurociencia, Facultad de MedicinaUniversidad de ChileSantiagoChile
| | | | - David Lira
- Unit Cognitive Impairment and Dementia PreventionCognitive Neurology CenterPeruvian Institute of NeurosciencesLimaPerú
| | - Francisco Lopera
- Neuroscience Research GroupUniversidad de AntioquiaMedellínColombia
| | - Adelina Comas
- Department of Health Policy at the London School of Economics and Political ScienceLondonUK
| | | | - Ana Luisa Sosa
- Instituto Nacional de Neurología y NeurocirugíaCiudad de MéxicoMéxico
| | - Claudia Ramos
- Global Brain Health Institute, University of California, San Francisco (UCSF)San FranciscoUSA
| | | | | | - Ioannis Tarnanas
- Global Brain Health Institute, University of CaliforniaSan FranciscoUSA
- Altoida Inc.HoustonTexasUSA
| | - Jenifer Yokoyama
- UCSF Department of NeurologyMemory and Aging CenterUCSFSan FranciscoCaliforniaUS
| | | | | | - Kate Possin
- UCSF Department of NeurologyMemory and Aging CenterUCSFSan FranciscoCaliforniaUS
| | - Kenneth S. Kosik
- Neuroscience Research Institute and Dept of Molecular Cellular and Developmental BiologyUniversity of California SantaBarbaraCaliforniaUSA
| | - Rosa Montesinos
- Unit Cognitive Impairment and Dementia PreventionCognitive Neurology CenterPeruvian Institute of NeurosciencesLimaPerú
| | - Sebastian Moguilner
- Global Brain Health Institute, University of California, San Francisco (UCSF)San FranciscoUSA
| | - Patricia Cristina Lourdes Solis
- Neurosciences and Complex Systems Unit (EnyS), CONICET, Hosp, El Cruce “N. Kirchner”, Univ. National A, Jauretche (UNAJ), F. Varela, Prov. Buenos Aires. Fac. MedicineUniv Nacional de Buenos Aires (UBA)Buenos AiresArgentina
| | | | - Jeronimo Martin Ramirez
- Departamen de Admision Continua Adultos Hospital General La Raza Instituto Mexicano del Seguro SocialGlobal Brain Health Institute, Trinity College Dublin, DublinCiudad de MexicoMexico
| | - Diana Matallana
- Medical SchoolAging Institute and Psychiatry DepartmentPontificia Universidad Javeriana. Memory and Cognition Center‐IntellectusHospital Universitario San IgnacioBogotáColombia
| | - Lingani Mbakile‐Mahlanza
- Global Brain Health InstituteUniversity of California San Francisco, University of BotswanaGaboroneBotswana
| | | | | | - Eliane C Miotto
- Department of NeurologyUniversity of Sao PauloSao PauloBrazil
| | | | | | - David Orozco
- Cognitive Neuroscience Development LaboratoryAxis NeurocienciasUniversidad Nacional del Sur, Cognitive Impairment and Behavior Disorders UnitBahía BlancaArgentina
| | - Maira Okada de Oliveira
- Global Brain Health Institute, University of California, San Francisco (UCSF)San FranciscoUSA
| | - Olivier Piguet
- School of Psychology and Brain and Mind CentreUniversity of SydneyCamperdownNSWAustralia
| | - Maritza Pintado Caipa
- Global Brain Health Institute, University of California, San Francisco (UCSF)San FranciscoUSA
| | | | - Lucas Porcello Schilling
- Department of NeurologyPontificia Universidade Catolica do Rio Grande do Sul (PUCRS)Porto AlegreBrazil
| | - André Luiz Rodrigues Palmeira
- Santa Casa de Misericórdia de Porto Alegre, Serviço de Neurologia, Porto Alegre, BrazilHospital Ernesto DornellesServiço de Neurologia e NeurocirurgiaPorto AlegreBrazil
| | | | - Jose Manuel Santacruz‐Escudero
- Medical School and Psychiatry DepartmentMemory and Cognition Center‐ IntellectusPontificia Universidad JaverianaHospital Universitario San IgnacioBogotáColombia
| | | | - Jerusa Smid
- Department of NeurologyUniversity of Sao PauloSão PauloBrazil
| | - Andrea Slachevsky
- Neurology DepartmentGeroscience Center for Brain Health and Metabolism, Santiago, Chile, Laboratory of Neuropsychology and Clinical Neuroscience (LANNEC), Physiopathology Program‐ICBM, East Neurologic and Neurosciences Departments, Faculty of MedicineHospital del Salvador and Faculty of Medicine University of Chile. Servicio de NeurologíaDepartamento de MedicinaClínica Alemana—Universidad del DesarrolloUniversity of Chile, Neuropsychiatry and Memory Disorders clinic (CMYN)SantiagoChile
| | | | | | | | - Lea Tenenholz Grinberg
- Departments of NeurologyPathology and Global Brain Health InstituteUCSF ‐ USA, Department of PathologyUniversity of São Paulo Medical SchoolSão PauloBrazil
| | - Antonio Lucio Teixeira
- Laboratório Interdisciplinar de Investigação MédicaFaculdade de MedicinaAv. Alfredo Balena, 110Universidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Maira Tonidandel Barbosa
- Faculdade de Medicina da Universidade Federal de Minas Gerais e Faculdade deCiências Médicas de Minas GeraisBelo HorizonteBrazil
| | - Dominic Trépel
- Global Brain Health Institute (GBHI)Trinity College DublinDublin
| | - Agustin Ibanez
- Cognitive Neuroscience Center (CNC) Buenos Aires, Argentina; Universidad Autonoma del Caribe, Barranquilla, Colombia; Global Brain Health Institute (GBHI), USUniversidad de San AndresCONICETUniversidad Autonoma del CaribeUniversidad Adolfo IbanezUCSFUSA
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20
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Paitel ER, Samii MR, Nielson KA. A systematic review of cognitive event-related potentials in mild cognitive impairment and Alzheimer's disease. Behav Brain Res 2020; 396:112904. [PMID: 32941881 DOI: 10.1016/j.bbr.2020.112904] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/29/2020] [Accepted: 09/05/2020] [Indexed: 01/28/2023]
Abstract
This systematic review examined whether event-related potentials (ERPs) during higher cognitive processing can detect subtle, early signs of neurodegenerative disease. Original, empirical studies retrieved from PsycINFO and PubMed were reviewed if they analyzed patterns in cognitive ERPs (≥150 ms post-stimulus) differentiating mild cognitive impairment (MCI), Alzheimer's disease (AD), or cognitively intact elders who carry AD risk through the Apolipoprotein-E ε4 allele (ε4+) from healthy older adult controls (HC). The 100 studies meeting inclusion criteria (MCI = 47; AD = 47; ε4+ = 6) analyzed N200, P300, N400, and occasionally, later components. While there was variability across studies, patterns of reduced amplitude and delayed latency were apparent in pathological aging, consistent with AD-related brain atrophy and cognitive impairment. These effects were particularly evident in advanced disease progression (i.e., AD > MCI) and in later ERP components measured during complex tasks. Although ERP studies in intact ε4+ elders are thus far scarce, a similar pattern of delayed latency was notable, along with a contrasting pattern of increased amplitude, consistent with compensatory neural activation. This limited work suggests ERPs might be able to index early neural changes indicative of future cognitive decline in otherwise healthy elders. As ERPs are also accessible and affordable relative to other neuroimaging methods, their addition to cognitive assessment might substantively enhance early identification and characterization of neural dysfunction, allowing opportunity for earlier differential diagnosis and targeting of intervention. To evaluate this possibility there is urgent need for well-powered studies assessing late cognitive ERPs during complex tasks, particularly in healthy elders at risk for cognitive decline.
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Affiliation(s)
| | | | - Kristy A Nielson
- Marquette University, Department of Psychology, United States; Medical College of Wisconsin, Department of Neurology and the Center for Imaging Research, United States.
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21
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Ortega R, López V, Carrasco X, Escobar MJ, García AM, Parra MA, Aboitiz F. Neurocognitive mechanisms underlying working memory encoding and retrieval in Attention-Deficit/Hyperactivity Disorder. Sci Rep 2020; 10:7771. [PMID: 32385310 PMCID: PMC7210977 DOI: 10.1038/s41598-020-64678-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 04/14/2020] [Indexed: 11/09/2022] Open
Abstract
Working memory (WM) impairments in ADHD have been consistently reported along with deficits in attentional control. Yet, it is not clear which specific WM processes are affected in this condition. A deficient coupling between attention and WM has been reported. Nevertheless, most studies focus on the capacity to retain information rather than on the attention-dependent stages of encoding and retrieval. The current study uses a visual short-term memory binding task, measuring both behavioral and electrophysiological responses to characterize WM encoding, binding and retrieval comparing ADHD and non-ADHD matched adolescents. ADHD exhibited poorer accuracy and larger reaction times than non-ADHD on all conditions but especially when a change across encoding and test displays occurred. Binding manipulation affected equally both groups. Encoding P3 was larger in the non-ADHD group. Retrieval P3 discriminated change only in the non-ADHD group. Binding-dependent ERP modulations did not reveal group differences. Encoding and retrieval P3 were significantly correlated only in non-ADHD. These results suggest that while binding processes seem to be intact in ADHD, attention-related encoding and retrieval processes are compromised, resulting in a failure in the prioritization of relevant information. This new evidence can also inform recent theories of binding in visual WM.
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Affiliation(s)
- Rodrigo Ortega
- Departamento de Psicología, Facultad de Ciencias Sociales, Universidad de Chile, Santiago, Chile.,Center for Social and Cognitive Neuroscience (CSCN), Escuela de Psicología, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Vladimir López
- Escuela de Psicología, Facultad de Ciencias Sociales, Pontificia Universidad Católica de Chile, Santiago, Chile.,Laboratorio de Neurociencias Cognitivas, Departamento de Psiquiatría, Centro Interdisciplinario de Neurociencias, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ximena Carrasco
- Servicio de Neurología y Psiquiatría, Hospital de Niños Dr. Luis Calvo Mackenna, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - María Josefina Escobar
- Center for Social and Cognitive Neuroscience (CSCN), Escuela de Psicología, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Adolfo M García
- Universidad de San Andrés, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Faculty of Education, National University of Cuyo, Mendoza, Argentina.,Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile
| | - Mario A Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.,Facultad de psicología, Universidad Autónoma del Caribe, Barranquilla, Colombia
| | - Francisco Aboitiz
- Laboratorio de Neurociencias Cognitivas, Departamento de Psiquiatría, Centro Interdisciplinario de Neurociencias, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
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22
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Farina FR, Emek-Savaş DD, Rueda-Delgado L, Boyle R, Kiiski H, Yener G, Whelan R. A comparison of resting state EEG and structural MRI for classifying Alzheimer's disease and mild cognitive impairment. Neuroimage 2020; 215:116795. [PMID: 32278090 DOI: 10.1016/j.neuroimage.2020.116795] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is the leading cause of dementia, accounting for 70% of cases worldwide. By 2050, dementia prevalence will have tripled, with most new cases occurring in low- and middle-income countries. Mild cognitive impairment (MCI) is a stage between healthy aging and dementia, marked by cognitive deficits that do not impair daily living. People with MCI are at increased risk of dementia, with an average progression rate of 39% within 5 years. There is urgent need for low-cost, accessible and objective methods to facilitate early dementia detection. Electroencephalography (EEG) has potential to address this need due to its low cost and portability. Here, we collected resting state EEG, structural MRI (sMRI) and rich neuropsychological data from older adults (55+ years) with AD, amnestic MCI (aMCI) and healthy controls (~60 per group). We evaluated a range of candidate EEG markers (i.e., frequency band power and functional connectivity) for AD and aMCI classification and compared their performance with sMRI. We also tested a combined EEG and cognitive classification model (using Mini-Mental State Examination; MMSE). sMRI outperformed resting state EEG at classifying AD (AUCs = 1.00 vs 0.76, respectively). However, both EEG and sMRI were only moderately good at distinguishing aMCI from healthy aging (AUCs = 0.67-0.73), and neither method achieved sensitivity above 70%. The addition of EEG to MMSE scores had no added benefit relative to MMSE scores alone. This is the first direct comparison of EEG and sMRI for classification of AD and aMCI.
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Affiliation(s)
- F R Farina
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland.
| | - D D Emek-Savaş
- Department of Psychology, Faculty of Letters, Dokuz Eylul University, Izmir, 35160, Turkey; Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, 35340, Turkey; Global Brain Health Institute, Trinity College Dublin, Dublin 2, Ireland
| | - L Rueda-Delgado
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
| | - R Boyle
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
| | - H Kiiski
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
| | - G Yener
- Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, 35340, Turkey; Department of Neurology, Dokuz Eylul University Medical School, Izmir, 35340, Turkey
| | - R Whelan
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland; Global Brain Health Institute, Trinity College Dublin, Dublin 2, Ireland.
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23
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Parra MA, Butler S, McGeown WJ, Brown Nicholls LA, Robertson DJ. Globalising strategies to meet global challenges: the case of ageing and dementia. J Glob Health 2020; 9:020310. [PMID: 31777656 PMCID: PMC6858988 DOI: 10.7189/jogh.09.020310] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Affiliation(s)
- Mario A Parra
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.,Alzheimer's Scotland Dementia Research Centre, Edinburgh University, UK.,Autonomous University of the Caribbean, Barranquilla, Colombia
| | - Stephen Butler
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.,Equal contribution, sorted alphabetically by surname
| | - William J McGeown
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.,Equal contribution, sorted alphabetically by surname
| | - Louise A Brown Nicholls
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.,Equal contribution, sorted alphabetically by surname
| | - David J Robertson
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.,Equal contribution, sorted alphabetically by surname
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24
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The striatum, the hippocampus, and short-term memory binding: Volumetric analysis of the subcortical grey matter's role in mild cognitive impairment. NEUROIMAGE-CLINICAL 2019; 25:102158. [PMID: 31918064 PMCID: PMC7036699 DOI: 10.1016/j.nicl.2019.102158] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 12/14/2022]
Abstract
Hippocampal atrophy plays no role in short-term memory binding. The globus pallidus could be part of the brain network supporting binding. Total brain atrophy does not correlate with striatal grey matter atrophy in MCI. Striatal grey matter atrophy reflects in total brain atrophy in controls. Hippocampal and parahippocampal volumes correlate in MCI and controls.
Background Deficits in short-term memory (STM) binding are a distinguishing feature of preclinical stages leading to Alzheimer's disease (AD). However, the neuroanatomical correlates of conjunctive STM binding are largely unexplored. Here we examine the possible association between the volumes of hippocampi, parahippocampal gyri, and grey matter within the subcortical structures – all found to have foci that seemingly correlate with basic daily living activities in AD patients - with cognitive tests related to conjunctive STM binding. Materials and methods Hippocampal, thalamic, parahippocampal and corpus striatum volumes were semi-automatically quantified in brain magnetic resonance images from 25 cognitively normal people and 21 patients with Mild Cognitive Impairment (MCI) at high risk of AD progression, who undertook a battery of cognitive tests and the short-term memory binding test. Associations were assessed using linear regression models and group differences were assessed using the Mann-Whitney U test. Results Hippocampal and parahippocampal gyrus volumes differed between MCI and control groups. Although the grey matter volume in the globus pallidus (r = -0.71, p < 0.001) and parahippocampal gyry (r = -0.63, p < 0.05) correlated with a STM binding task in the MCI group, only the former remained associated with STM binding deficits in MCI patients, after correcting for age, gender and years of education (β = -0.56,P = 0.042) although with borderline significance. Conclusions Loss of hippocampal volume plays no role in the processing of STM binding. Structures within the basal ganglia, namely the globus pallidus, could be part of the extrahippocampal network supporting binding. Replication of this study in large samples is now needed.
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25
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Martínez JF, Trujillo C, Arévalo A, Ibáñez A, Cardona JF. Assessment of Conjunctive Binding in Aging: A Promising Approach for Alzheimer’s Disease Detection. J Alzheimers Dis 2019; 69:71-81. [DOI: 10.3233/jad-181154] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | | | - Analía Arévalo
- Department of Neurology, University of São Paulo Medical School, São Paulo, Brazil
| | - Agustín Ibáñez
- Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibanez, Santiago, Chile
- Centre of Excellence in Cognition and its Disorders, Australian Research Council (ACR), Sydney, Australia
| | - Juan F. Cardona
- Instituto de Psicología, Universidad del Valle, Cali, Colombia
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26
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Pergher V, Tournoy J, Schoenmakers B, Van Hulle MM. P300, Gray Matter Volume and Individual Characteristics Correlates in Healthy Elderly. Front Aging Neurosci 2019; 11:104. [PMID: 31130855 PMCID: PMC6510164 DOI: 10.3389/fnagi.2019.00104] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/17/2019] [Indexed: 12/16/2022] Open
Abstract
We investigated whether P300-ERP and cognitive test performance differ for age, sex, and education in two groups of healthy elderly, and verified whether any correlations exist between P300 amplitude and latency and gray matter volume using whole brain voxel-by-voxel-based mapping, controlling for age, education, sex and Total Intracranial Volume (TIV). We used 32 channel electroencephalograms (EEG) to record the P300 responses and 3T Magnetic Resonance Imaging (MRI) to determine gray matter volume. We recruited 36 native-Dutch speaking healthy older subjects, equally divided in two sub-groups of 52-64 and 65-76 years old, administered a battery of cognitive tests and recorded their demographics, EEGs and task performance; additionally, 16 adults from the second sub-group underwent an MRI scan. We found significant differences between age groups in their cognitive tests performance, P300 amplitudes for the frontal and parietal electrodes for the most difficult task, and P300 latencies for frontal, central and parietal electrodes for all three tasks difficulty levels. Interesting, sex and education affected cognitive and P300 results. Higher education was related to higher accuracy, and P300 amplitudes and shorter latencies. Moreover, females exhibited higher P300 amplitudes and shorter latencies, and better cognitive tasks performance compared to males. Additionally, for the 16 adults underwent to MRI scan, we found positive correlations between P300 characteristics in frontal, central and parietal areas and gray matter volume, controlling for demographic variables and TIV, but also showing that age, sex, and education correlate with gray matter volume. These findings provide support that age, sex, and education affect an individual's cognitive, neurophysiological and structural characteristics, and therefore motivate the need to further investigate these in relation to P300 responses and gray matter volume in healthy elderly.
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Affiliation(s)
- Valentina Pergher
- Laboratory for Neuro- and Psychophysiology, Department of Neurosciences, KU Leuven - University of Leuven, Leuven, Belgium
| | - Jos Tournoy
- Department of Chronic Disease, Metabolism and Ageing, KU Leuven - University of Leuven, Leuven, Belgium
| | - Birgitte Schoenmakers
- Academic Centre of General Practice, KU Leuven - University of Leuven, Leuven, Belgium
| | - Marc M Van Hulle
- Laboratory for Neuro- and Psychophysiology, Department of Neurosciences, KU Leuven - University of Leuven, Leuven, Belgium
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27
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Josefsson A, Ibáñez A, Parra M, Escudero J. Network analysis through the use of joint-distribution entropy on EEG recordings of MCI patients during a visual short-term memory binding task. Healthc Technol Lett 2019; 6:27-31. [PMID: 31119035 PMCID: PMC6498400 DOI: 10.1049/htl.2018.5060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/31/2018] [Accepted: 01/03/2019] [Indexed: 11/25/2022] Open
Abstract
The early diagnosis of Alzheimer's disease (AD) is particularly challenging. Mild cognitive impairment (MCI) has been linked to AD and electroencephalogram (EEG) recordings are able to measure brain activity directly with high temporal resolution. In this context, with appropriate processing, the EEG recordings can be used to construct a graph representative of brain functional connectivity. This work studies a functional network created from a non-linear measure of coupling of beta-filtered EEG recordings during a short-term memory binding task. It shows that the values of the small-world characteristic and eccentricity are, respectively, lower and higher in MCI patients than in controls. The results show how MCI leads to EEG functional connectivity changes. They expect that the network differences between MCIs and control subjects could be used to gain insight into the early stages of AD.
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Affiliation(s)
- Alexandra Josefsson
- School of Engineering, Institute for Digital Communications, The University of Edinburgh, EH9 3FB, Edinburgh, UK
| | - Agustín Ibáñez
- Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibanez, Santiago, Chile.,Universidad Autónoma del Caribe, Barranquilla, Colombia.,Centre of Excellence in Cognition and its Disorders, Australian Research Council (ACR), Sydney, Australia
| | - Mario Parra
- Universidad Autónoma del Caribe, Barranquilla, Colombia.,School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
| | - Javier Escudero
- School of Engineering, Institute for Digital Communications, The University of Edinburgh, EH9 3FB, Edinburgh, UK
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28
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Pietto ML, Giovannetti F, Segretin MS, Belloli LML, Lopez-Rosenfeld M, Goldin AP, Fernández-Slezak D, Kamienkowski JE, Lipina SJ. Enhancement of inhibitory control in a sample of preschoolers from poor homes after cognitive training in a kindergarten setting: Cognitive and ERP evidence. Trends Neurosci Educ 2018. [DOI: 10.1016/j.tine.2018.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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29
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Electrophysiological approaches in the study of cognitive development outside the lab. PLoS One 2018; 13:e0206983. [PMID: 30475814 PMCID: PMC6261036 DOI: 10.1371/journal.pone.0206983] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 10/23/2018] [Indexed: 11/30/2022] Open
Abstract
The use of human neuroimaging technology provides knowledge about several emotional and cognitive processes at the neural level of organization. In particular, electroencephalographic (EEG) techniques allow researchers to explore high-temporal resolution of the neural activity that underlie the dynamics of cognitive processes. Although EEG research has been mostly applied in laboratory settings, recently a low-cost, portable EEG apparatus was released, which allows exploration of different emotional and cognitive processes during every-day activities. We compared a wide range of EEG measures using both a low-cost portable and a high-quality laboratory system. EEG recordings were done with both systems while participants performed an active task (Go/NoGo) and during their resting-state. Results showed similar waveforms in terms of morphology and amplitude of the ERPs, and comparable effects between conditions of the applied Go/NoGo paradigm. In addition, the contribution of each frequency to the entire EEG was not significantly different during resting-state, and fluctuations in amplitude of oscillations showed long-range temporal correlations. These results showed that low-cost, portable EEG technology can provide an alternative of enough quality for measuring brain activity outside a laboratory setting, which could contribute to the study of different populations in more ecological contexts.
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30
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Schneegans S, Bays PM. New perspectives on binding in visual working memory. Br J Psychol 2018; 110:207-244. [DOI: 10.1111/bjop.12345] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/06/2018] [Indexed: 12/01/2022]
Affiliation(s)
| | - Paul M. Bays
- Department of Psychology; University of Cambridge; UK
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31
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Jonin PY, Calia C, Muratot S, Belliard S, Duché Q, Barbeau EJ, Parra MA. Refining understanding of working memory buffers through the construct of binding: Evidence from a single case informs theory and clinical practise. Cortex 2018; 112:37-57. [PMID: 30245198 PMCID: PMC6418315 DOI: 10.1016/j.cortex.2018.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/15/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022]
Abstract
Binding operations carried out in working memory enable the integration of information from different sources during online performance. While available evidence suggests that working memory may involve distinct binding functions, whether or not they all involve the episodic buffer as a cognitive substrate remains unclear. Similarly, knowledge about the neural underpinnings of working memory buffers is limited, more specifically regarding the involvement of medial temporal lobe structures. In the present study, we report on the case of patient KA, with developmental amnesia and selective damage to the whole hippocampal system. We found that KA was unable to hold shape-colours associations (relational binding) in working memory. In contrast, he could hold integrated coloured shapes (conjunctive binding) in two different tasks. Otherwise, and as expected, KA was impaired on three relational memory tasks thought to depend on the hippocampus that are widely used in the early detection of Alzheimer's disease. Our results emphasize a dissociation between two binding processes within working memory, suggesting that the visuo-spatial sketchpad could support conjunctive binding, and may rely upon a large cortical network including sub-hippocampal structures. By contrast, we found evidence for a selective impairment of relational binding in working memory when the hippocampal system is compromised, suggesting that the long-term memory deficit observed in amnesic patients may be related to impaired short-term relational binding at encoding. Finally, these findings may inform research on the early detection of Alzheimer's disease as the preservation of conjunctive binding in KA is in sharp contrast with the impaired performance demonstrated very early in this disease.
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Affiliation(s)
- Pierre-Yves Jonin
- Centre de Recherche Cerveau et Cognition, Université de Toulouse, CNRS CERCO, UMR 5549, Toulouse, France; RISA, UMR CNRS 6074, VisAGeS U 1228, Inserm, INRIA, Université de Rennes 1, Rennes, France; CHU Pontchaillou, Service de Neurologie, Rennes, France.
| | - Clara Calia
- School of Health in Social Science, University of Edinburgh, Edinburgh, UK
| | - Sophie Muratot
- Centre de Recherche Cerveau et Cognition, Université de Toulouse, CNRS CERCO, UMR 5549, Toulouse, France
| | | | - Quentin Duché
- RISA, UMR CNRS 6074, VisAGeS U 1228, Inserm, INRIA, Université de Rennes 1, Rennes, France
| | - Emmanuel J Barbeau
- Centre de Recherche Cerveau et Cognition, Université de Toulouse, CNRS CERCO, UMR 5549, Toulouse, France
| | - Mario A Parra
- School of Social Sciences, Department of Psychology, Heriot-Watt University, Edinburgh, UK; Universidad Autónoma del Caribe, Facultad de Psicología, Barranquilla, Colombia
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32
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Fernández G, Orozco D, Agamennoni O, Schumacher M, Sañudo S, Biondi J, Parra MA. Visual Processing during Short-Term Memory Binding in Mild Alzheimer’s Disease. J Alzheimers Dis 2018; 63:185-194. [DOI: 10.3233/jad-170728] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Gerardo Fernández
- Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina, Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
| | - David Orozco
- Clínica Privada Bahiense, Bahía Blanca, Buenos Aires, Argentina
| | - Osvaldo Agamennoni
- Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina, Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
| | - Marcela Schumacher
- Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina, Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
| | - Silvana Sañudo
- Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina, Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
| | - Juan Biondi
- Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina, Instituto de Investigaciones en Ingeniería Eléctrica (IIIE) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
| | - Mario A. Parra
- Department of Psychology, School of Social Sciences, Heriot-Watt University, Edinburgh, UK
- Universidad Autónoma del Caribe, Facultad de Psicología, Barranquilla, Colombia
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33
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Wu M, Shi H, He Y, Yuan L, Qu X, Zhang J, Wang Z, Cai H, Qi J. Colivelin Ameliorates Impairments in Cognitive Behaviors and Synaptic Plasticity in APP/PS1 Transgenic Mice. J Alzheimers Dis 2018; 59:1067-1078. [PMID: 28731445 DOI: 10.3233/jad-170307] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia, and effective therapeutics are lacking. Colivelin (CLN), a novel, strong humanin derivative, is effective in vitro in preventing cell death induced by AD-causative genes and amyloid-β protein (Aβ) even at a low concentration. We recently demonstrated that intrahippocampal injection of CLN prevents Aβ25-35-induced deficits in spatial memory and synaptic plasticity in normal rats. Here, we further observed the effects of chronically intranasally (i.n.) administered CLN on cognitive behaviors and pathological hallmarks in 9-month-old APPswe/PS1dE9 (APP/PS1) AD mice using multiple behavioral tests and immunochemistry. The electrophysiological mechanism of CLN neuroprotection was also investigated by recording in vivo hippocampal long-term potentiation (LTP). CLN pretreatment effectively prevented impairments in new object recognition, working memory, and long-term spatial memory and reversed the depression of in vivo hippocampal LTP in APP/PS1 mice. Additionally, chronic application of CLN obviously reduced Aβ deposition in the hippocampus in APP/PS1 mice. These results indicate that CLN has strong neuroprotective effects on learning and memory behaviors in APP/PS1 mice and that this behavioral improvement is closely associated with the reduction of Aβ deposition and alleviation of LTP suppression in the hippocampus, supporting the potential of CLN for the prevention and treatment of AD.
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Affiliation(s)
- Meina Wu
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Hui Shi
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China.,Intensive Care Unit, Chifeng Municipal Hospital of Inner Mongolia, Chifeng, China
| | - Yexin He
- Department of Radiology, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Li Yuan
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Xuesong Qu
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Jun Zhang
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Zhaojun Wang
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Hongyan Cai
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, China
| | - Jinshun Qi
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
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34
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Ibáñez A, Sedeño L, García AM, Deacon RMJ, Cogram P. Editorial: Human and Animal Models for Translational Research on Neurodegeneration: Challenges and Opportunities From South America. Front Aging Neurosci 2018; 10:95. [PMID: 29681845 PMCID: PMC5897422 DOI: 10.3389/fnagi.2018.00095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 03/20/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Agustín Ibáñez
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Universidad Autónoma del Caribe, Barranquilla, Colombia.,Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile.,Centre of Excellence in Cognition and its Disorders, Australian Research Council (ACR), Sydney, NSW, Australia
| | - Lucas Sedeño
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Adolfo M García
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Faculty of Education, National University of Cuyo (UNCuyo), Mendoza, Argentina
| | - Robert M J Deacon
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina.,Faculty of Science, Institute of Ecology and Biodiversity, University of Chile, Santiago, Chile
| | - Patricia Cogram
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina.,Faculty of Science, Institute of Ecology and Biodiversity, University of Chile, Santiago, Chile
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35
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Parra MA, Baez S, Allegri R, Nitrini R, Lopera F, Slachevsky A, Custodio N, Lira D, Piguet O, Kumfor F, Huepe D, Cogram P, Bak T, Manes F, Ibanez A. Dementia in Latin America: Assessing the present and envisioning the future. Neurology 2018; 90:222-231. [PMID: 29305437 PMCID: PMC5791795 DOI: 10.1212/wnl.0000000000004897] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 10/02/2017] [Indexed: 01/26/2023] Open
Abstract
The demographic structure of Latin American countries (LAC) is fast approaching that of developing countries, and the predicted prevalence of dementia in the former already exceeds the latter. Dementia has been declared a global challenge, yet regions around the world show differences in both the nature and magnitude of such a challenge. This article provides evidence and insights on barriers which, if overcome, would enable the harmonization of strategies to tackle the dementia challenge in LAC. First, we analyze the lack of available epidemiologic data, the need for standardizing clinical practice and improving physician training, and the existing barriers regarding resources, culture, and stigmas. We discuss how these are preventing timely care and research. Regarding specific health actions, most LAC have minimal mental health facilities and do not have specific mental health policies or budgets specific to dementia. In addition, local regulations may need to consider the regional context when developing treatment and prevention strategies. The support needed nationally and internationally to enable a smooth and timely transition of LAC to a position that integrates global strategies is highlighted. We focus on shared issues of poverty, cultural barriers, and socioeconomic vulnerability. We identify avenues for collaboration aimed to study unique populations, improve valid assessment methods, and generate opportunities for translational research, thus establishing a regional network. The issues identified here point to future specific actions aimed at tackling the dementia challenge in LAC.
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Affiliation(s)
- Mario A Parra
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Sandra Baez
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Ricardo Allegri
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Ricardo Nitrini
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Francisco Lopera
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Andrea Slachevsky
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Nilton Custodio
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - David Lira
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Olivier Piguet
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Fiona Kumfor
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - David Huepe
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Patricia Cogram
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Thomas Bak
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Facundo Manes
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile
| | - Agustin Ibanez
- From the School of Life Sciences (M.A.P.), Psychology, University Heriot-Watt; Human Cognitive Neuroscience (M.A.P.), Psychology, Edinburgh University; Alzheimer's Scotland Dementia Research Centre and Scottish Dementia Clinical Research Network (M.A.P.), Edinburgh; Centre for Cognitive Ageing and Cognitive Epidemiology (M.A.P., T.B.) and Department of Psychology, School of Philosophy, Psychology and Language Sciences (P.C., T.B.), University of Edinburgh, UK; Universidad Autónoma del Caribe (M.A.P., A.I.), Barranquilla, Colombia; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (S.B., F.M., A.I.); Institute of Translational and Cognitive Neuroscience (INCYT) (S.B., F.M., A.I.), INECO Foundation, Favaloro University, Buenos Aires, Argentina; Departamento de Psicología (S.B.) Universidad de los Andes, Bogotá, Colombia; Department of Cognitive Neurology and Neuropsychology (R.A.), Instituto de Investigaciones Neurológicas "Raúl Carrea" (FLENI) (R.A.), Buenos Aires, Argentina; Universidad de la Costa (CUC) (R.A.), Barranquilla, Colombia; Department of Neurology (R.N.), University of São Paulo Medical School, Brazil; Group of Neuroscience (F.L.), University of Antioquia, Medellín, Colombia; Geroscience Center for Brain Health and Metabolism (A.S.); Physiopathology Department, ICBM, and East Neuroscience Department, Faculty of Medicine (A.S.), and Center for Advanced Research in Education (CIAE) (A.S.), University of Chile; Cognitive Neurology and Dementia, Neurology Department (A.S.), Hospital del Salvador; Neurology Department, Clínica Alemana (A.S.), Santiago, Chile; Research Unit, Peruvian Institute of Neurosciences (N.C., D.L.) and Unit Cognitive Impairment and Dementia Prevention (N.C., D.L.), Lima, Peru; Brain and Mind Centre & School of Psychology (O.P., F.K.), Faculty of Science, University of Sydney; ARC Centre of Excellence in Cognition and its Disorders (O.P., F.K., F.M., A.I.), Sydney, Australia; Fraunhofer Chile (O.P., P.C.), Santiago; and Center for Social and Cognitive Neuroscience (CSCN), School of Psychology (D.H., A.I.), Universidad Adolfo Ibáñez, Santiago, Chile.
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Simó M, Gurtubay-Antolin A, Vaquero L, Bruna J, Rodríguez-Fornells A. Performance monitoring in lung cancer patients pre- and post-chemotherapy using fine-grained electrophysiological measures. NEUROIMAGE-CLINICAL 2017; 18:86-96. [PMID: 29387526 PMCID: PMC5789765 DOI: 10.1016/j.nicl.2017.12.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/05/2017] [Accepted: 12/20/2017] [Indexed: 12/20/2022]
Abstract
No previous event-related potentials (ERPs) study has explored the error-related negativity (ERN) - an ERP component indexing performance monitoring - associated to cancer and chemotherapy-induced cognitive impairment in a lung cancer population. The aim of this study was to examine differences in performance monitoring in a small-cell lung cancer group (SCLC, C +) 1-month following chemotherapy and two control groups: a non-small cell lung cancer patient group (NSCLC, C −) prior to chemotherapy and a healthy control group (HC). Seventeen SCLC (C +) underwent a neuropsychological assessment and an ERP study using a flanker and a stop-signal paradigm. This group was compared to fifteen age-, gender- and education-matched NSCLC (C −) and eighteen HC. Between 20 and 30% of patients in both lung cancer groups (C + and C −) met criteria for cognitive impairment. Concerning ERPs, lung cancer patients showed lower overall hit rate and a severe ERN amplitude reduction compared to HC. Lung cancer patients exhibited an abnormal pattern of performance monitoring thus suggesting that chemotherapy and especially cancer itself, may contribute to cognitive deterioration. ERN appeared as an objective laboratory tool sensitive to cognitive dysfunction in cancer population. This is the first study to explore error-related negativity in lung cancer patients. Lung cancer patients showed a severe ERN amplitude reduction. ERN resulted a potential biomarker of cognitive impairment in lung cancer population.
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Affiliation(s)
- M Simó
- Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain; Neuro-Oncology Unit, Hospital Universitari de Bellvitge-ICO L'Hospitalet-IDIBELL, 08907 Barcelona, Spain.
| | - A Gurtubay-Antolin
- Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain
| | - L Vaquero
- Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain; Laboratory for Motor Learning and Neural Plasticity, Concordia University, HUB 1R6 Montreal, QC, Canada
| | - J Bruna
- Neuro-Oncology Unit, Hospital Universitari de Bellvitge-ICO L'Hospitalet-IDIBELL, 08907 Barcelona, Spain
| | - A Rodríguez-Fornells
- Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain; Dept. of Cognition, Development and Education Psychology, University of Barcelona, Campus Bellvitge, L'Hospitalet de Llobregat, 08907 Barcelona, Spain; Catalan Institution for Research and Advanced Studies, ICREA, 08010 Barcelona, Spain
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Birba A, Hesse E, Sedeño L, Mikulan EP, García MDC, Ávalos J, Adolfi F, Legaz A, Bekinschtein TA, Zimerman M, Parra M, García AM, Ibáñez A. Enhanced Working Memory Binding by Direct Electrical Stimulation of the Parietal Cortex. Front Aging Neurosci 2017. [PMID: 28642698 PMCID: PMC5462969 DOI: 10.3389/fnagi.2017.00178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Recent works evince the critical role of visual short-term memory (STM) binding deficits as a clinical and preclinical marker of Alzheimer’s disease (AD). These studies suggest a potential role of posterior brain regions in both the neurocognitive deficits of Alzheimer’s patients and STM binding in general. Thereupon, we surmised that stimulation of the posterior parietal cortex (PPC) might be a successful approach to tackle working memory deficits in this condition, especially at early stages. To date, no causal evidence exists of the role of the parietal cortex in STM binding. A unique approach to assess this issue is afforded by single-subject direct intracranial electrical stimulation of specific brain regions during a relevant cognitive task. Electrical stimulation has been used both for clinical purposes and to causally probe brain mechanisms. Previous evidence of electrical currents spreading through white matter along well defined functional circuits indicates that visual working memory mechanisms are subserved by a specific widely distributed network. Here, we stimulated the parietal cortex of a subject with intracranial electrodes as he performed the visual STM task. We compared the ensuing results to those from a non-stimulated condition and to the performance of a matched control group. In brief, direct stimulation of the parietal cortex induced a selective improvement in STM. These results, together with previous studies, provide very preliminary but promising ground to examine behavioral changes upon parietal stimulation in AD. We discuss our results regarding: (a) the usefulness of the task to target prodromal stages of AD; (b) the role of a posterior network in STM binding and in AD; and (c) the potential opportunity to improve STM binding through brain stimulation.
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Affiliation(s)
- Agustina Birba
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina
| | - Eugenia Hesse
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina.,Instituto de Ingeniería Biomédica, Facultad de Ingeniería, Universidad de Buenos AiresBuenos Aires, Argentina
| | - Lucas Sedeño
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina
| | - Ezequiel P Mikulan
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina
| | | | - Juan Ávalos
- Hospital Italiano de Buenos AiresBuenos Aires, Argentina
| | - Federico Adolfi
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina
| | - Agustina Legaz
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina
| | - Tristán A Bekinschtein
- Consciousness and Cognition Laboratory, Department of Psychology, University of CambridgeCambridge, United Kingdom
| | - Máximo Zimerman
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina
| | - Mario Parra
- Department of Psychology, School of Social Sciences, Heriot-Watt UniversityEdinburgh, United Kingdom.,Human Cognitive Neuroscience, Centre for Cognitive Ageing and Cognitive Epidemiology, Alzheimer Scotland Dementia Research Centre, Department of Psychology, University of EdinburghEdinburgh, United Kingdom.,Neuroprogressive and Dementia Network, NHS Research ScotlandEdinburgh, United Kingdom.,Facultad de Psicología, Universidad Autónoma del CaribeBarranquilla, Colombia
| | - Adolfo M García
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina.,Faculty of Education, National University of Cuyo (UNCuyo)Mendoza, Argentina
| | - Agustín Ibáñez
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina.,Facultad de Psicología, Universidad Autónoma del CaribeBarranquilla, Colombia.,Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo IbañezSantiago, Chile.,Centre of Excellence in Cognition and its Disorders, Australian Research Council (ARC)Sydney, NSW, Australia
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Ochoa JF, Alonso JF, Duque JE, Tobón CA, Baena A, Lopera F, Mañanas MA, Hernández AM. Precuneus Failures in Subjects of the PSEN1 E280A Family at Risk of Developing Alzheimer's Disease Detected Using Quantitative Electroencephalography. J Alzheimers Dis 2017; 58:1229-1244. [PMID: 28550254 DOI: 10.3233/jad-161291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Presenilin-1 (PSEN1) mutations are the most common cause of familial early onset Alzheimer's disease (AD). The PSEN1 E280A (E280A) mutation has an autosomal dominant inheritance and is involved in the production of amyloid-β. The largest family group of carriers with E280A mutation is found in Antioquia, Colombia. The study of mutation carriers provides a unique opportunity to identify brain changes in stages previous to AD. Electroencephalography (EEG) is a low cost and minimally invasiveness technique that enables the following of brain changes in AD. OBJECTIVE To examine how previous reported differences in EEG for Theta and Alpha-2 rhythms in E280A subjects are related to specific regions in cortex and could be tracked across different ages. METHODS EEG signals were acquired during resting state from non-carriers and carriers, asymptomatic and symptomatic subjects from E280A kindred from Antioquia, Colombia. Independent component analysis (ICA) and inverse solution methods were used to locate brain regions related to differences in Theta and Alpha-2 bands. RESULTS ICA identified two components, mainly related to the Precuneus, where the differences in Theta and Alpha-2 exist simultaneously at asymptomatic and symptomatic stages. When the ratio between Theta and Alpha-2 is used, significant correlations exist with age and a composite cognitive scale. CONCLUSION Theta and Alpha-2 rhythms are altered in E280A subjects. The alterations are possible to track at Precuneus regions using EEG, ICA, and inverse solution methods.
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Affiliation(s)
- John Fredy Ochoa
- Bioinstrumentation and Clinical Engineering Research Group, Bioengineering Program, Universidad de Antioquia, Medellín, Colombia
| | - Joan Francesc Alonso
- Department of Automatic Control (ESAII), Biomedical Engineering Research Center (CREB), Universitat Politènica de Catalunya (UPC), Barcelona, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Jon Edinson Duque
- Bioinstrumentation and Clinical Engineering Research Group, Bioengineering Program, Universidad de Antioquia, Medellín, Colombia
| | - Carlos Andrés Tobón
- Neuroscience Group of Antioquia, Medical School, Universidad de Antioquia, Medellín, Colombia.,Neuropsychology and Behavior Group, Medical School, Universidad de Antioquia, Medellín, Colombia
| | - Ana Baena
- Neuroscience Group of Antioquia, Medical School, Universidad de Antioquia, Medellín, Colombia
| | - Francisco Lopera
- Neuroscience Group of Antioquia, Medical School, Universidad de Antioquia, Medellín, Colombia
| | - Miguel Angel Mañanas
- Department of Automatic Control (ESAII), Biomedical Engineering Research Center (CREB), Universitat Politènica de Catalunya (UPC), Barcelona, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Alher Mauricio Hernández
- Bioinstrumentation and Clinical Engineering Research Group, Bioengineering Program, Universidad de Antioquia, Medellín, Colombia
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Birba A, Ibáñez A, Sedeño L, Ferrari J, García AM, Zimerman M. Non-Invasive Brain Stimulation: A New Strategy in Mild Cognitive Impairment? Front Aging Neurosci 2017; 9:16. [PMID: 28243198 PMCID: PMC5303733 DOI: 10.3389/fnagi.2017.00016] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/20/2017] [Indexed: 01/05/2023] Open
Abstract
Non-invasive brain stimulation (NIBS) techniques can significantly modulate cognitive functions in healthy subjects and patients with neuropsychiatric disorders. Recently, they have been applied in patients with mild cognitive impairment (MCI) and subjective cognitive impairment (SCI) to prevent or delay the development of Alzheimer’s disease (AD). Here we review this emerging empirical corpus and discuss therapeutic effects of NIBS on several target functions (e.g., memory for face-name associations and non-verbal recognition, attention, psychomotor speed, everyday memory). Available studies have yielded mixed results, possibly due to differences among their tasks, designs, and samples, let alone the latter’s small sizes. Thus, the impact of NIBS on cognitive performance in MCI and SCI remains to be determined. To foster progress in this direction, we outline methodological approaches that could improve the efficacy and specificity of NIBS in both conditions. Furthermore, we discuss the need for multicenter studies, accurate diagnosis, and longitudinal approaches combining NIBS with specific training regimes. These tenets could cement biomedical developments supporting new treatments for MCI and preventive therapies for AD.
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Affiliation(s)
- Agustina Birba
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina; National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina
| | - Agustín Ibáñez
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina; National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina; Universidad Autónoma del CaribeBarranquilla, Colombia; Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo IbañezSantiago de Chile, Chile; Centre of Excellence in Cognition and its Disorders, Australian Research Council (ARC)Sydney, NSW, Australia
| | - Lucas Sedeño
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina; National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina
| | - Jesica Ferrari
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro University Buenos Aires, Argentina
| | - Adolfo M García
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro UniversityBuenos Aires, Argentina; National Scientific and Technical Research Council (CONICET)Buenos Aires, Argentina; Faculty of Education, National University of Cuyo (UNCuyo)Mendoza, Argentina
| | - Máximo Zimerman
- Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCyT), INECO Foundation, Favaloro University Buenos Aires, Argentina
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Locating Temporal Functional Dynamics of Visual Short-Term Memory Binding using Graph Modular Dirichlet Energy. Sci Rep 2017; 7:42013. [PMID: 28186173 PMCID: PMC5301217 DOI: 10.1038/srep42013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 01/05/2017] [Indexed: 11/09/2022] Open
Abstract
Visual short-term memory binding tasks are a promising early marker for Alzheimer's disease (AD). To uncover functional deficits of AD in these tasks it is meaningful to first study unimpaired brain function. Electroencephalogram recordings were obtained from encoding and maintenance periods of tasks performed by healthy young volunteers. We probe the task's transient physiological underpinnings by contrasting shape only (Shape) and shape-colour binding (Bind) conditions, displayed in the left and right sides of the screen, separately. Particularly, we introduce and implement a novel technique named Modular Dirichlet Energy (MDE) which allows robust and flexible analysis of the functional network with unprecedented temporal precision. We find that connectivity in the Bind condition is less integrated with the global network than in the Shape condition in occipital and frontal modules during the encoding period of the right screen condition. Using MDE we are able to discern driving effects in the occipital module between 100-140 ms, coinciding with the P100 visually evoked potential, followed by a driving effect in the frontal module between 140-180 ms, suggesting that the differences found constitute an information processing difference between these modules. This provides temporally precise information over a heterogeneous population in promising tasks for the detection of AD.
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Baez S, Ibáñez A. Dementia in Latin America: An Emergent Silent Tsunami. Front Aging Neurosci 2016; 8:253. [PMID: 27840605 PMCID: PMC5083841 DOI: 10.3389/fnagi.2016.00253] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 10/14/2016] [Indexed: 12/16/2022] Open
Affiliation(s)
- Sandra Baez
- Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive and Translational Neuroscience, INECO Foundation, Favaloro UniversityBuenos Aires, Argentina
- Departamento de Psicología, Universidad de los AndesBogotá, Colombia
| | - Agustín Ibáñez
- Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive and Translational Neuroscience, INECO Foundation, Favaloro UniversityBuenos Aires, Argentina
- Departamento de Psicología, Universidad Autónoma del CaribeBarranquilla, Colombia
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo IbáñezSantiago de Chile, Chile
- Australian Research Council Centre of Excellence in Cognition and its DisordersSydney, NSW, Australia
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