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Peylo C, Romberg-Taylor C, Behnke L, Sauseng P. Dynamic alpha power modulations and slow negative potentials track natural shifts of spatio-temporal attention. Psychophysiology 2024; 61:e14498. [PMID: 38071405 DOI: 10.1111/psyp.14498] [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: 04/12/2023] [Revised: 10/17/2023] [Accepted: 11/16/2023] [Indexed: 04/17/2024]
Abstract
Alpha power modulations and slow negative potentials have previously been associated with anticipatory processes in spatial and temporal top-down attention. In typical experimental designs, however, neural responses triggered by transient stimulus onsets can interfere with attention-driven activity patterns and our interpretation of such. Here, we investigated these signatures of spatio-temporal attention in a dynamic paradigm free from potentially confounding stimulus-driven activity using electroencephalography. Participants attended the cued side of a bilateral stimulus rotation and mentally counted how often one of two remembered sample orientations (i.e., the target) was displayed while ignoring the uncued side and non-target orientation. Afterwards, participants performed a delayed match-to-sample task, in which they indicated if the orientation of a probe stimulus matched the corresponding sample orientation (previously target or non-target). We observed dynamic alpha power reductions and slow negative waves around task-relevant points in space and time (i.e., onset of the target orientation in the cued hemifield) over posterior electrodes contralateral to the locus of attention. In contrast to static alpha power lateralization, these dynamic signatures correlated with subsequent memory performance (primarily detriments for matching probes of the non-target orientation), suggesting a preferential allocation of attention to task-relevant locations and time points at the expense of reduced resources and impaired performance for information outside the current focus of attention. Our findings suggest that humans can naturally and dynamically focus their attention at relevant points in space and time and that such spatio-temporal attention shifts can be reflected by dynamic alpha power modulations and slow negative potentials.
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Affiliation(s)
- Charline Peylo
- Department of Psychology, Universität Zürich, Zurich, Switzerland
- Graduate School of Systemic Neurosciences, Ludwig-Maximilians-Universität München, Planegg, Germany
- Department of Psychology, Ludwig-Maximilians-Universität München, Munich, Germany
| | | | - Larissa Behnke
- Department of Psychology, Universität Zürich, Zurich, Switzerland
- Graduate School of Systemic Neurosciences, Ludwig-Maximilians-Universität München, Planegg, Germany
- Department of Psychology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Paul Sauseng
- Department of Psychology, Universität Zürich, Zurich, Switzerland
- Department of Psychology, Ludwig-Maximilians-Universität München, Munich, Germany
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2
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Yan M, Tian Y, Hai M, Zhang B, Chen A. Working memory components modulation of attentional disengagement from evaluative distractor. Psych J 2024. [PMID: 38530871 DOI: 10.1002/pchj.748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 02/20/2024] [Indexed: 03/28/2024]
Abstract
It is important for people to disengage attention from a distraction, which can help them complete the task at hand as quickly as possible. Recent studies have shown that people's attention stays longer on reward-distractors than on loss-distractors, and a delay in attentional disengagement is noted when reward-distractors are present. However, few studies have examined whether attentional disengagement from an evaluative distractor relies upon working memory (WM) components. In the present study, we used an attentional disengagement paradigm in which reward- or loss-distractors were presented at a central location and the target was presented at a peripheral location, in combination with different WM tasks. The results from Experiment 1 showed that participants were slower to disengage their attention from a central reward-distractor than a loss-distractor regardless of cognitive load when the phonological loop component of WM was involved. The results from Experiment 2 revealed that people had difficulty in shifting their attention away from a reward-distractor in comparison to a loss-distractor when spatial WM was low, whereas no such difference was observed when spatial WM was high. We conclude that WM components differently modulate attentional disengagement from evaluative distractors. That is, the processing of evaluative (reward and loss) distractors may rely on the same cognitive resources as the spatial WM component, but not the phonological loop component.
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Affiliation(s)
- Minmin Yan
- Key Laboratory of Cognition and Personality of Ministry of Education, Faculty of Psychology, Southwest University, Chongqing, China
| | - Yanying Tian
- School of Psychology, Shaanxi Normal University, Xi'an, China
| | - Min Hai
- School of Psychology, Shaanxi Normal University, Xi'an, China
| | - Bohua Zhang
- Key Laboratory of Cognition and Personality of Ministry of Education, Faculty of Psychology, Southwest University, Chongqing, China
| | - Antao Chen
- School of Psychology, Research Center for Exercise and Brain Science, Shanghai University of Sport, Shanghai, China
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3
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Park J, Lee S, Park S, Lee C, Kim S, Im CH. Transcranial alternating current stimulation over multiple brain areas with non-zero phase delays other than 180 degrees modulates visuospatial working memory performance. Sci Rep 2023; 13:12710. [PMID: 37543713 PMCID: PMC10404219 DOI: 10.1038/s41598-023-39960-3] [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: 02/26/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023] Open
Abstract
While zero-phase lag synchronization between multiple brain regions has been widely observed, relatively recent reports indicate that systematic phase delays between cortical regions reflect the direction of communications between cortical regions. For example, it has been suggested that a non-zero phase delay of electroencephalography (EEG) signals at the gamma frequency band between the bilateral parietal areas may reflect the direction of communication between these areas. We hypothesized that the direction of communication between distant brain areas might be modulated by multi-site transcranial alternating current stimulation (tACS) with specific phase delays other than 0° and 180°. In this study, a new noninvasive brain stimulation (NIBS) method called multi-site multi-phase tACS (msmp-tACS) was proposed. The efficacy of the proposed method was tested in a case study using a visuospatial working memory (VWM) paradigm in which the optimal stimulation conditions including amplitudes and phases of multiple scalp electrodes were determined using finite element analysis adopting phasor representation. msmp-tACS was applied over the bilateral intraparietal sulci (IPS) and showed that 80 Hz tACS with the phase for the right IPS leading that for the left IPS by 90° (= 3.125 ms) partialized VWM performance toward the right visual hemifield. The three stimulation conditions were synchronized, RL, and LR, which refers to stimulation condition with no phase lag, stimulation phase of right IPS (rIPS) leading left IPS (lIPS) by 90° and the stimulation of lIPS leading rIPS by 90°, respectively. The lateralization of VWM significantly shifted towards right visual hemifield under the RL condition compared to the synchronized and LR conditions. The shift in VWM was the result of the stimulation affecting both left and right visual hemifield trials to certain degrees, rather than significantly increasing or decreasing VWM capacity of a specific visual hemifield. Altered brain dynamics caused by msmp-tACS partialized VWM performance, likely due to modulation of effective connectivity between the rIPS and lIPS. Our results suggest that msmp-tACS is a promising NBS method that can effectively modulate cortical networks that cannot be readily modulated with conventional multi-site stimulation methods.
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Affiliation(s)
- Jimin Park
- Department of Electronic Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Sangjun Lee
- Department of Electronic Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Seonghun Park
- Department of Electronic Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Chany Lee
- Cognitive Science Research Group, Korea Brain Research Institute, Daegu, Republic of Korea
| | - Sungshin Kim
- Department of Cognitive Sciences, Hanyang University, Seoul, Republic of Korea
| | - Chang-Hwan Im
- Department of Electronic Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea.
- Department of Biomedical Engineering, Hanyang University, Seoul, Republic of Korea.
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4
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Effects of internally directed cognition on smooth pursuit eye movements: A systematic examination of perceptual decoupling. Atten Percept Psychophys 2023; 85:1159-1178. [PMID: 36922477 PMCID: PMC10167146 DOI: 10.3758/s13414-023-02688-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2023] [Indexed: 03/17/2023]
Abstract
Eye behavior differs between internally and externally directed cognition and thus is indicative of an internal versus external attention focus. Recent work implicated perceptual decoupling (i.e., eye behavior becoming less determined by the sensory environment) as one of the key mechanisms involved in these attention-related eye movement differences. However, it is not yet understood how perceptual decoupling depends on the characteristics of the internal task. Therefore, we systematically examined effects of varying internal task demands on smooth pursuit eye movements. Specifically, we evaluated effects of the internal workload (control vs. low vs. high) and of internal task (arithmetic vs. visuospatial). The results of multilevel modelling showed that effects of perceptual decoupling were stronger for higher workload, and more pronounced for the visuospatial modality. Effects also followed a characteristic time-course relative to internal operations. The findings provide further support of the perceptual decoupling mechanism by showing that it is sensitive to the degree of interference between external and internal information.
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Moore EM, Glass L, Infante MA, Coles CD, Kable JA, Jones KL, Riley EP, Mattson SN. Cross-Sectional Analysis of Spatial Working Memory Development in Children with Histories of Heavy Prenatal Alcohol Exposure. Alcohol Clin Exp Res 2020; 45:215-223. [PMID: 33190244 DOI: 10.1111/acer.14506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/24/2020] [Accepted: 10/22/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND In children with prenatal alcohol exposure, spatial working memory is affected and brain regions important for spatial working memory performance exhibit atypical neurodevelopment. We therefore hypothesized that children with prenatal alcohol exposure may also have atypical development of spatial working memory ability. METHODS We examined the relation between spatial working memory and age using a cross-sectional developmental trajectory approach in youth with and without histories of heavy prenatal alcohol exposure. The Cambridge Neuropsychological Test Automated Battery Spatial Working Memory subtest was administered to children 5.0 to 16.9 years old. RESULTS While the controls and children with prenatal alcohol exposure showed similar performance at younger ages, larger group differences were observed in older children. This effect was replicated in a separate sample. CONCLUSIONS The atypical brain development that has previously been reported in children with heavy prenatal alcohol exposure may have clinically relevant implications for cognitive development; however, longitudinal cognitive analyses are needed.
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Affiliation(s)
- Eileen M Moore
- From the, Department of Psychology, (EMM, LG, MAI, EPR, SNM), Center for Behavioral Teratology, San Diego State University, San Diego, California
| | - Leila Glass
- From the, Department of Psychology, (EMM, LG, MAI, EPR, SNM), Center for Behavioral Teratology, San Diego State University, San Diego, California.,Los Angeles Semel Institute for Neuroscience and Human Behavior, (LG), University of California, Los Angeles, California
| | - M Alejandra Infante
- From the, Department of Psychology, (EMM, LG, MAI, EPR, SNM), Center for Behavioral Teratology, San Diego State University, San Diego, California.,Department of Psychiatry, (MAI), University of California, San Diego, San Diego, La Jolla, California
| | - Claire D Coles
- Department of Psychiatry and Behavioral Sciences, (CDC), Emory University School of Medicine, Atlanta, Georgia.,Department of Pediatrics, (CDC, JAK), Emory University School of Medicine, Atlanta, Georgia
| | - Julie A Kable
- Department of Pediatrics, (CDC, JAK), Emory University School of Medicine, Atlanta, Georgia
| | - Kenneth L Jones
- Department of Pediatrics, (KLJ), School of Medicine, University of California, San Diego, La Jolla, California
| | - Edward P Riley
- From the, Department of Psychology, (EMM, LG, MAI, EPR, SNM), Center for Behavioral Teratology, San Diego State University, San Diego, California
| | - Sarah N Mattson
- From the, Department of Psychology, (EMM, LG, MAI, EPR, SNM), Center for Behavioral Teratology, San Diego State University, San Diego, California
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6
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Veréb D, Tóth E, Bozsik B, Király A, Szabó N, Kincses B, Kocsis K, Faragó P, László V, Bencsik K, Klivényi P, Kincses ZT. Altered brain network function during attention-modulated visual processing in multiple sclerosis. Mult Scler 2020; 27:1341-1349. [PMID: 33016839 DOI: 10.1177/1352458520958360] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Multiple sclerosis may damage cognitive performance in several domains, including attention. Although attention network deficits were described during rest, studies that investigate their function during task performance are scarce. OBJECTIVE To investigate connectivity within and between task-related networks in multiple sclerosis during a visual attention task as a function of cognitive performance. METHODS A total of 23 relapsing-remitting multiple sclerosis (RRMS) patients and 29 healthy controls underwent task-functional magnetic resonance imaging (fMRI) scans using a visual attention paradigm on a 3T scanner. Scans were analysed using tensor-independent component analysis (TICA). Functional connectivity was calculated within and between components. We assessed cognitive function with the Brief International Cognitive Assessment for MS (BICAMS) battery. RESULTS TICA extracted components related to visual processing, attention, executive function and the default-mode network. Subject scores of visual/attention-related and executive components were greater in healthy controls (p < 0.032, p < 0.023). Connectivity between visual/attention-related and default-mode components was higher in patients (p < 0.043), correlating with Brief Visuospatial Memory Test-Revised (BVMT-R) scores (R = -0.48, p < 0.036). Patients showed reduced connectivity between the right intraparietal sulcus (rIPS) and frontal eye field (rFEF), and bilateral frontal eye fields (p < 0.012, p < 0.003). Reduced rIPS-rFEF connectivity came with lower Symbol Digit Modalities Test (SDMT)/BVMT-R scores in patients (R = 0.53, p < 0.02, R = 0.46, p < 0.049). CONCLUSION Attention-related networks show altered connectivity during task performance in RRMS patients, scaling with cognitive disability.
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Affiliation(s)
- Dániel Veréb
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Eszter Tóth
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Bence Bozsik
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - András Király
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Nikoletta Szabó
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Bálint Kincses
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Krisztián Kocsis
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Péter Faragó
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Vécsei László
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Krisztina Bencsik
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Péter Klivényi
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Zsigmond Tamás Kincses
- Department of Neurology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary/Neuroimaging Research Group, Department of Radiology, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
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7
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Howard CJ, Pole R, Montgomery P, Woodward A, Guest D, Standen B, Kent C, Crowe EM. Visual spatial attention and spatial working memory do not draw on shared capacity-limited core processes. Q J Exp Psychol (Hove) 2019; 73:799-818. [PMID: 31842721 DOI: 10.1177/1747021819897882] [Citation(s) in RCA: 2] [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
The extent to which similar capacity limits in visual attention and visual working memory indicate a common shared underlying mechanism is currently still debated. In the spatial domain, the multiple object tracking (MOT) task has been used to assess the relationship between spatial attention and spatial working memory though existing results have been inconclusive. In three dual task experiments, we examined the extent of interference between attention to spatial positions and memory for spatial positions. When the position monitoring task required keeping track of target identities through colour-location binding, we found a moderate detrimental effect of position monitoring on spatial working memory and an ambiguous interaction effect. However, when this task requirement was removed, load increases in neither task were detrimental to the other. The only very moderate interference effect that remained resided in an interaction between load types but was not consistent with shared capacity between tasks-rather it was consistent with content-related crosstalk between spatial representations. Contrary to propositions that spatial attention and spatial working memory may draw on a common shared set of core processes, these findings indicate that for a purely spatial task, perceptual attention and working memory appear to recruit separate core capacity-limited processes.
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Affiliation(s)
| | - Rebekah Pole
- Department of Psychology, Nottingham Trent University, Nottingham, UK
| | | | - Amanda Woodward
- Department of Psychology, Nottingham Trent University, Nottingham, UK
| | - Duncan Guest
- Department of Psychology, Nottingham Trent University, Nottingham, UK
| | - Bradley Standen
- Department of Psychology, Nottingham Trent University, Nottingham, UK
| | - Christopher Kent
- School of Psychological Science, University of Bristol, Bristol, UK
| | - Emily M Crowe
- School of Psychological Science, University of Bristol, Bristol, UK.,Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Parthasarathy A, Tang C, Herikstad R, Cheong LF, Yen SC, Libedinsky C. Time-invariant working memory representations in the presence of code-morphing in the lateral prefrontal cortex. Nat Commun 2019; 10:4995. [PMID: 31676790 PMCID: PMC6825148 DOI: 10.1038/s41467-019-12841-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/27/2019] [Indexed: 11/09/2022] Open
Abstract
Maintenance of working memory is thought to involve the activity of prefrontal neuronal populations with strong recurrent connections. However, it was recently shown that distractors evoke a morphing of the prefrontal population code, even when memories are maintained throughout the delay. How can a morphing code maintain time-invariant memory information? We hypothesized that dynamic prefrontal activity contains time-invariant memory information within a subspace of neural activity. Using an optimization algorithm, we found a low-dimensional subspace that contains time-invariant memory information. This information was reduced in trials where the animals made errors in the task, and was also found in periods of the trial not used to find the subspace. A bump attractor model replicated these properties, and provided predictions that were confirmed in the neural data. Our results suggest that the high-dimensional responses of prefrontal cortex contain subspaces where different types of information can be simultaneously encoded with minimal interference.
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Affiliation(s)
| | - Cheng Tang
- Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore
| | - Roger Herikstad
- The N.1 Institute for Health, National University of Singapore (NUS), Singapore, Singapore
| | - Loong Fah Cheong
- Department of Electrical and Computer Engineering, NUS, Singapore, Singapore
| | - Shih-Cheng Yen
- The N.1 Institute for Health, National University of Singapore (NUS), Singapore, Singapore.
- Innovation and Design Programme, Faculty of Engineering, NUS, Singapore, Singapore.
| | - Camilo Libedinsky
- Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore.
- The N.1 Institute for Health, National University of Singapore (NUS), Singapore, Singapore.
- Department of Psychology, NUS, Singapore, Singapore.
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9
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Yang HL, Chu H, Kao CC, Chiu HL, Tseng IJ, Tseng P, Chou KR. Development and effectiveness of virtual interactive working memory training for older people with mild cognitive impairment: a single-blind randomised controlled trial. Age Ageing 2019; 48:519-525. [PMID: 30989165 DOI: 10.1093/ageing/afz029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/23/2019] [Accepted: 03/14/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND memory training is a potential intervention for retaining memory and reducing dementia risk in older adults with mild cognitive impairment (MCI). OBJECTIVE this study examined the effect of virtual interactive working memory training (VIMT) in older adults with MCI. DESIGN single-blind, two-arm parallel-group, randomised controlled design. SETTING retirement homes, institutions, and communities. SUBJECTS a total of 66 older adults with MCI were recruited (mean age: 78.5 ± 7.6 years). METHODS participants were randomly assigned to the experimental group (VIMT, n = 33) or active control group (n = 33). The VIMT program used the CogniPlus (includes four training modules). Both groups attended 45 min sessions 3 times per week, a total of 36 sessions. The primary outcome was working memory; secondary outcomes were immediate memory, delayed memory, subjective memory complaints and global cognitive function. All variables were measured at pre-test, post-test, and 3-month follow-up. RESULTS between group, the effect of working memory adjusted mean difference by 1.75 (95% CI: 0.56 to 2.94; P < 0.01) at post-test. The results were analysed by a generalised estimating equation, which indicated that VIMT group significantly improved working memory at post-test (P = 0.01) relative to the active control group. CONCLUSIONS the applied VIMT program can enable older adults with MCI to maintain their working memory and reduce the rate of cognitive deterioration. TRIAL REGISTRATION This trial was registered on ClinicalTrials.gov (no.: NCT02462135).
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Affiliation(s)
- Hui-Ling Yang
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - Hsin Chu
- Institute of Aerospace and Undersea Medicine, School of Medicine, National Defense Medical Center, Taipei, Taiwan
- Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ching-Chiu Kao
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
- Department of Nursing, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Huei-Ling Chiu
- School of Gerontology Health Management, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - Ing-Jy Tseng
- School of Gerontology Health Management, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - Philip Tseng
- Graduate Institute of Humanities in Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Mind, Brain and Consciousness, Taipei Medical University, Taipei, Taiwan
- Brain and Consciousness Research Center, TMU - Shuang Ho Hospital, New Taipei City, Taiwan
| | - Kuei-Ru Chou
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
- Psychiatric Research Center, Taipei Medical University Hospital, Taipei, Taiwan
- Department of Nursing, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
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Urgen BM, Topac Y, Ustun FS, Demirayak P, Oguz KK, Kansu T, Saygi S, Ozcelik T, Boyaci H, Doerschner K. Homozygous LAMC3 mutation links to structural and functional changes in visual attention networks. Neuroimage 2019; 190:242-253. [DOI: 10.1016/j.neuroimage.2018.03.077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 03/09/2018] [Accepted: 03/31/2018] [Indexed: 01/26/2023] Open
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Libedinsky CD, Fernandez PF. Graded Memory: A Cognitive Category to Replace Spatial Sustained Attention and Working Memory
. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2019; 92:121-125. [PMID: 30923479 PMCID: PMC6430177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this opinion article we challenge the commonly-held notion that visuospatial working memory and visuospatial sustained selective attention are two ontologically different cognitive categories. We start by discussing the general idea of cognitive categories, and then review some of the key behavioral and neural evidence both in favor of and against the separability of these processes. We then discuss a theoretical framework that could be useful for understanding the neural implementations of cognitive categories. We conclude that the evidence is insufficient to support the assumption that spatial working memory and spatial sustained attention are independent categories, and that further experimentation is necessary to determine the ontological independence of the two processes.
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Affiliation(s)
- Camilo D. Libedinsky
- Department of Psychology, NUS, Singapore, Singapore,Singapore Institute for Neurotechnology, NUS, Singapore, Singapore,Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore,To whom all correspondence should be addressed: Camilo D. Libedinsky, National University of Singapore, Faculty of Arts and Social Sciences, Block AS4, #03-39, 9 Arts Link, Singapore 117570; Tel: +65 9271 1190 (HP),
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12
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Abstract
When encountering an excess of information, people are able to selectively remember high-value information by strategically allocating attention during the encoding period, termed value-directed remembering. This has been demonstrated in both the episodic verbal and visuospatial memory domains. Importantly, the allocation of attention also plays a crucial role in the binding of identity and location information in visuospatial memory. We examined how taxing attentional resources to various degrees during encoding might affect visuospatial memory and selectivity. Participants studied items paired with point values indicating their value in a grid display and were asked to maximize their point score (a summation of the points associated with correctly remembered information). Participants viewed items under either a sequential or simultaneous presentation format and in either the presence or absence of a secondary tone discrimination task. While participants in the divided attention conditions recalled fewer item-location associations overall, participants in all encoding conditions prioritized high-value information in memory, providing further evidence that selectivity can be maintained even when attentional resources are taxed. However, differences between presentation formats emerged when conducting spatial resolution analyses examining errors. Errors in the simultaneous conditions were only influenced by item value when attention was full during encoding, while errors in the sequential conditions were not influenced by item value, regardless of available attentional resources. The results suggest participants can strategically allocate attention during encoding even under cognitively-demanding conditions and that gist-based visuospatial memory may only be influenced by information importance when adequate attentional resources are available.
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13
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Lapierre MD, Cropper SJ, Howe PDL. Shared processing in multiple object tracking and visual working memory in the absence of response order and task order confounds. PLoS One 2017; 12:e0175736. [PMID: 28410383 PMCID: PMC5391939 DOI: 10.1371/journal.pone.0175736] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 03/30/2017] [Indexed: 11/18/2022] Open
Abstract
To understand how the visual system represents multiple moving objects and how those representations contribute to tracking, it is essential that we understand how the processes of attention and working memory interact. In the work described here we present an investigation of that interaction via a series of tracking and working memory dual-task experiments. Previously, it has been argued that tracking is resistant to disruption by a concurrent working memory task and that any apparent disruption is in fact due to observers making a response to the working memory task, rather than due to competition for shared resources. Contrary to this, in our experiments we find that when task order and response order confounds are avoided, all participants show a similar decrease in both tracking and working memory performance. However, if task and response order confounds are not adequately controlled for we find substantial individual differences, which could explain the previous conflicting reports on this topic. Our results provide clear evidence that tracking and working memory tasks share processing resources.
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Affiliation(s)
- Mark D. Lapierre
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Simon J. Cropper
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia
- * E-mail:
| | - Piers D. L. Howe
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia
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Connor DA, Gould TJ. The role of working memory and declarative memory in trace conditioning. Neurobiol Learn Mem 2016; 134 Pt B:193-209. [PMID: 27422017 PMCID: PMC5755400 DOI: 10.1016/j.nlm.2016.07.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 07/07/2016] [Accepted: 07/11/2016] [Indexed: 01/18/2023]
Abstract
Translational assays of cognition that are similarly implemented in both lower and higher-order species, such as rodents and primates, provide a means to reconcile preclinical modeling of psychiatric neuropathology and clinical research. To this end, Pavlovian conditioning has provided a useful tool for investigating cognitive processes in both lab animal models and humans. This review focuses on trace conditioning, a form of Pavlovian conditioning typified by the insertion of a temporal gap (i.e., trace interval) between presentations of a conditioned stimulus (CS) and an unconditioned stimulus (US). This review aims to discuss pre-clinical and clinical work investigating the mnemonic processes recruited for trace conditioning. Much work suggests that trace conditioning involves unique neurocognitive mechanisms to facilitate formation of trace memories in contrast to standard Pavlovian conditioning. For example, the hippocampus and prefrontal cortex (PFC) appear to play critical roles in trace conditioning. Moreover, cognitive mechanistic accounts in human studies suggest that working memory and declarative memory processes are engaged to facilitate formation of trace memories. The aim of this review is to integrate cognitive and neurobiological accounts of trace conditioning from preclinical and clinical studies to examine involvement of working and declarative memory.
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Affiliation(s)
- David A Connor
- Department of Psychology, Neuroscience Program, Temple University, Philadelphia, PA 19122, United States
| | - Thomas J Gould
- Department of Psychology, Neuroscience Program, Temple University, Philadelphia, PA 19122, United States.
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Feng J, Spence I. Upper visual field advantage in localizing a target among distractors. Iperception 2014; 5:97-100. [PMID: 25469215 PMCID: PMC4249996 DOI: 10.1068/i0625rep] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 03/30/2014] [Indexed: 12/04/2022] Open
Abstract
Biases exist in many perceptual and cognitive functions. Since visual attention plays an important role in a wide range of perceptual and cognitive processes, any bias in the spatial distribution of attention is likely to be a significant source of perceptual and cognitive asymmetries. An attentional visual field task (AVF) requiring localization of a target among distractors was used to assess possible asymmetries in attentional processing in the vertical meridian. The results showed a bias favoring the upper visual field, suggesting a potentially important role of attention in perceptual and cognitive asymmetries.
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Affiliation(s)
- Jing Feng
- Department of Psychology, North Carolina State University, Campus Box 7650, Raleigh, North Carolina, USA; e-mail:
| | - Ian Spence
- Department of Psychology, University of Toronto, 100 St. George Street, Toronto, Ontario, Canada; e-mail:
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Cutini S, Scatturin P, Basso Moro S, Zorzi M. Are the neural correlates of subitizing and estimation dissociable? An fNIRS investigation. Neuroimage 2013; 85 Pt 1:391-9. [PMID: 23973407 DOI: 10.1016/j.neuroimage.2013.08.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 08/07/2013] [Accepted: 08/13/2013] [Indexed: 10/26/2022] Open
Abstract
Human performance in visual enumeration tasks typically shows two distinct patterns as a function of set size. For small sets, usually up to 4 items, numerosity judgments are extremely rapid, precise and confident, a phenomenon known as subitizing. When this limit is exceeded and serial counting is precluded, exact enumeration gives way to estimation: performance becomes error-prone and more variable. Surprisingly, despite the importance of subitizing and estimation in numerical cognition, only few neuroimaging studies have examined whether the neural activity related to these two phenomena can be dissociated. In the present work, we used multi-channel near-infrared spectroscopy (fNIRS) to measure hemodynamic activity of the bilateral parieto-occipital cortex during a visual enumeration task. Participants had to judge the numerosity of dot arrays and indicate it by means of verbal response. We observed a different hemodynamic pattern in the parietal cortex, both in terms of amplitude modulation and temporal profile, for numerosities below and beyond the subitizing range. Crucially, the neural dissociation between subitizing and estimation was strongest at the level of right IPS. The present findings confirm that fNIRS can be successfully used to detect subtle temporal differences in hemodynamic activity and to produce inferences on the neural mechanisms underlying cognitive functions.
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Affiliation(s)
- Simone Cutini
- Department of General Psychology, University of Padova, Italy.
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