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Fittipaldi S, Legaz A, Maito M, Hernandez H, Altschuler F, Canziani V, Moguilner S, Gillan C, Castillo J, Lillo P, Custodio N, Avila-Funes J, Cardona J, Slachevsky A, Henriquez F, Fraile-Vazquez M, de Souza LC, Borroni B, Hornberger M, Lopera F, Santamaria-Garcia H, Matallana D, Reyes P, Gonzalez-Campo C, Bertoux M, Ibanez A. Heterogeneous factors influence social cognition across diverse settings in brain health and age-related diseases. Res Sq 2023:rs.3.rs-3007086. [PMID: 37333384 PMCID: PMC10274952 DOI: 10.21203/rs.3.rs-3007086/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Aging may diminish social cognition, which is crucial for interaction with others, and significant changes in this capacity can indicate pathological processes like dementia. However, the extent to which non-specific factors explain variability in social cognition performance, especially among older adults and in global settings, remains unknown. A computational approach assessed combined heterogeneous contributors to social cognition in a diverse sample of 1063 older adults from 9 countries. Support vector regressions predicted the performance in emotion recognition, mentalizing, and a total social cognition score from a combination of disparate factors, including clinical diagnosis (healthy controls, subjective cognitive complaints, mild cognitive impairment, Alzheimer's disease, behavioral variant frontotemporal dementia), demographics (sex, age, education, and country income as a proxy of socioeconomic status), cognition (cognitive and executive functions), structural brain reserve, and in-scanner motion artifacts. Cognitive and executive functions and educational level consistently emerged among the top predictors of social cognition across models. Such non-specific factors showed more substantial influence than diagnosis (dementia or cognitive decline) and brain reserve. Notably, age did not make a significant contribution when considering all predictors. While fMRI brain networks did not show predictive value, head movements significantly contributed to emotion recognition. Models explained between 28-44% of the variance in social cognition performance. Results challenge traditional interpretations of age-related decline, patient-control differences, and brain signatures of social cognition, emphasizing the role of heterogeneous factors. Findings advance our understanding of social cognition in brain health and disease, with implications for predictive models, assessments, and interventions.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - José Avila-Funes
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
| | | | | | | | | | | | | | | | | | | | | | - Pablo Reyes
- Latin American Brain Health Institute (BrainLat)
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Moguilner S, Birba A, Fittipaldi S, Gonzalez-Campo C, Tagliazucchi E, Reyes P, Matallana D, Parra MA, Slachevsky A, Farias G, Cruzat J, Garcia A, Eyre HA, La Joie R, Rabinovici G, Whelan R, Ibanez A. Multi-feature computational framework for combined signatures of dementia in underrepresented settings. J Neural Eng 2022; 19. [PMID: 35940105 DOI: 10.1088/1741-2552/ac87d0] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 08/08/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The differential diagnosis of behavioral variant frontotemporal dementia (bvFTD) and Alzheimer's disease (AD) remains challenging in underrepresented, underdiagnosed groups, including Latinos, as advanced biomarkers are rarely available. Recent guidelines for the study of dementia highlight the critical role of biomarkers. Thus, novel cost-effective complementary approaches are required in clinical settings. APPROACH We developed a novel framework based on a gradient boosting machine learning classifier, tuned by Bayesian optimization, on a multi-feature multimodal approach (combining demographic, neuropsychological, MRI, and EEG/fMRI connectivity data) to characterize neurodegeneration using site harmonization and sequential feature selection. We assessed 54 bvFTD and 76 AD patients and 152 healthy controls (HCs) from a Latin American consortium (ReDLat). MAIN RESULTS The multimodal model yielded high AUC classification values (bvFTD patients vs. HCs: 0.93 (±0.01); AD patients vs. HCs: 0.95 (±0.01); bvFTD vs. AD patients: 0.92 (±0.01)). The feature selection approach successfully filtered non-informative multimodal markers (from thousands to dozens). Results proved robust against multimodal heterogeneity, sociodemographic variability, and missing data. SIGNIFICANCE The model accurately identified dementia subtypes using measures readily available in underrepresented settings, with a similar performance than advanced biomarkers. This approach, if confirmed and replicated, may potentially complement clinical assessments in developing countries.
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Affiliation(s)
| | - Agustina Birba
- University of San Andres, Vito Dumas 284, Buenos Aires, B1644BID, ARGENTINA
| | - Sol Fittipaldi
- University of San Andres, Vito Dumas 284, Buenos Aires, B1644BID, ARGENTINA
| | | | - Enzo Tagliazucchi
- Fachhochschule Kiel, Sokratespl. 1, 24149 Kiel, Kiel, 24149, GERMANY
| | - Pablo Reyes
- Pontificia Universidad Javeriana, Calle 18 No. 118-250, Cali, Bogota, 118, COLOMBIA
| | - Diana Matallana
- Pontificia Universidad Javeriana, Calle 18 No. 118-250, Bogota, 118, COLOMBIA
| | - Mario A Parra
- University of Strathclyde, School of Psychological Sciences and Health, Glasgow, Glasgow, G1 1XQ, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Andrea Slachevsky
- University of Chile, Av Libertador Bernardo O'Higgins 1058, Santiago de Chile, 1025000, CHILE
| | - Gonzalo Farias
- University of Chile, Av Libertador Bernardo O'Higgins 1058, Santiago de Chile, 1025000, CHILE
| | - Josephine Cruzat
- Adolfo Ibanez University, Diag. Las Torres 2640, Penalolen, 2580335, CHILE
| | - Adolfo Garcia
- University of San Andres, Vito Dumas 284, Buenos Aires, B1644BID, ARGENTINA
| | - Harris A Eyre
- Trinity College Dublin, College Green, Dublin, 2, IRELAND
| | - Renaud La Joie
- UCSF, 505 Parnassus Ave, San Francisco, California, 94143, UNITED STATES
| | - Gil Rabinovici
- UCSF, 505 Parnassus Ave, San Francisco, California, 94143, UNITED STATES
| | - Robert Whelan
- Trinity College Dublin School of Psychology, College Green, Dublin, 2, IRELAND
| | - Agustin Ibanez
- Trinity College Dublin, College Green, Dublin, 2, IRELAND
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Hedjoudje A, Piveteau A, Gonzalez-Campo C, Moghekar A, Gailloud P, San Millán D. The Occipital Emissary Vein: A Possible Marker for Pseudotumor Cerebri. AJNR Am J Neuroradiol 2019; 40:973-978. [PMID: 31072972 DOI: 10.3174/ajnr.a6061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/03/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Transverse sinus stenosis can lead to pseudotumor cerebri syndrome by elevating the cerebral venous pressure. The occipital emissary vein is an inconstant emissary vein that connects the torcular herophili with the suboccipital veins of the external vertebral plexus. This retrospective study compares the prevalence and size of the occipital emissary vein in patients with pseudotumor cerebri syndrome with those in healthy control subjects to determine whether the occipital emissary vein could represent a marker of pseudotumor cerebri syndrome. MATERIALS AND METHODS The cranial venous system of 46 adult patients with pseudotumor cerebri syndrome (group 1) was studied on CT venography images and compared with a group of 92 consecutive adult patients without pseudotumor cerebri syndrome who underwent venous assessment with gadolinium-enhanced 3D-T1 MPRAGE sequences (group 2). The presence of an occipital emissary vein was assessed, and its proximal (intraosseous) and distal (extracranial) maximum diameters were measured and compared between the 2 groups. Seventeen patients who underwent transverse sinus stent placement had their occipital emissary vein diameters measured before and after stent placement. RESULTS Thirty of 46 (65%) patients in group 1 versus 29/92 (31.5%) patients in group 2 had an occipital emissary vein (P < .001). The average proximal and distal occipital emissary vein maximum diameters were significantly larger in group 1 (2.3 versus 1.6 mm, P <.005 and 3.3 versus 2.3 mm, P < .001). The average maximum diameters of the occipital emissary vein for patients who underwent transverse sinus stent placement were larger before stent placement than after stent placement: 2.6 versus 1.8 mm proximally (P < .06) and 3.7 versus 2.6 mm distally (P < .005). CONCLUSIONS Occipital emissary veins are more frequent and larger in patients with pseudotumor cerebri syndrome than in healthy subjects, a finding consistent with their role as collateral venous pathway in transverse sinus stenosis. A prominent occipital emissary vein is an imaging sign that should raise the suspicion of pseudotumor cerebri syndrome.
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Affiliation(s)
- A Hedjoudje
- From the Neuroradiology Unit (A.H., C.G.-C., D.S.M.), Service of Diagnostic and Interventional Imaging, Sion Hospital, Sion, Valais, Switzerland .,Department of Interventional Neuroradiology (A.H., P.G.).,Imaging Department (A.H.), University Hospital of Rouen, Rouen, France
| | - A Piveteau
- Imaging Department (A.P.), University Hospital of Geneva, Geneva, Switzerland
| | - C Gonzalez-Campo
- From the Neuroradiology Unit (A.H., C.G.-C., D.S.M.), Service of Diagnostic and Interventional Imaging, Sion Hospital, Sion, Valais, Switzerland
| | - A Moghekar
- Cerebral Fluid Center (A.M.), Department of Neurology, The Johns Hopkins Hospital, Baltimore, Maryland
| | - P Gailloud
- Department of Interventional Neuroradiology (A.H., P.G.)
| | - D San Millán
- From the Neuroradiology Unit (A.H., C.G.-C., D.S.M.), Service of Diagnostic and Interventional Imaging, Sion Hospital, Sion, Valais, Switzerland
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Courtin J, Karalis N, Gonzalez-Campo C, Wurtz H, Herry C. Persistence of amygdala gamma oscillations during extinction learning predicts spontaneous fear recovery. Neurobiol Learn Mem 2013; 113:82-9. [PMID: 24091205 DOI: 10.1016/j.nlm.2013.09.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 09/10/2013] [Accepted: 09/24/2013] [Indexed: 11/15/2022]
Abstract
Extinction of auditory fear conditioning induces a temporary inhibition of conditioned fear responses that can spontaneously reappear with the passage of time. Several lines of evidence indicate that extinction learning relies on the recruitment of specific neuronal populations within the basolateral amygdala. In contrast, post-extinction spontaneous fear recovery is thought to result from deficits in the consolidation of extinction memory within prefrontal neuronal circuits. Interestingly, recent data indicates that the strength of gamma oscillations in the basolateral amygdala during auditory fear conditioning correlates with retrieval of conditioned fear responses. In the present manuscript we evaluated the hypothesis that post-extinction spontaneous fear recovery might depend on the maintenance of gamma oscillations within the basolateral amygdala by using single unit and local field potential recordings in behaving mice. Our results indicate that gamma oscillations in the basolateral amygdala were enhanced following fear conditioning, whereas during extinction learning gamma profiles were more heterogeneous despite similar extinction learning rates. Remarkably, variations in the strength of gamma power within the basolateral amygdala between early and late stages of extinction linearly predicted the level of post-extinction spontaneous fear recovery. These data suggest that maintenance of gamma oscillations in the basolateral amygdala during extinction learning is a strong predictive factor of long term spontaneous fear recovery.
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Affiliation(s)
- J Courtin
- INSERM, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France; Univ. Bordeaux, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France
| | - N Karalis
- INSERM, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France; Univ. Bordeaux, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France
| | - C Gonzalez-Campo
- INSERM, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France; Univ. Bordeaux, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France
| | - H Wurtz
- INSERM, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France; Univ. Bordeaux, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France
| | - C Herry
- INSERM, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France; Univ. Bordeaux, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, 33077 Bordeaux, France.
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