Pupillometry as tool to assess cognitive and affective processing in aging

The present manuscript synthesizes research using pupillometry to assess cognitive and affective processing in the aging population. There are two main findings: first, pupil size tends to enlarge as the cognitive load increases in older adults and a contrasting trend emerges when the load surpasses...

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Main Author: Mohamad El Haj
Format: Article
Language:English
Published: Elsevier 2024-06-01
Series:Brain Disorders
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666459324000143
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author Mohamad El Haj
author_facet Mohamad El Haj
author_sort Mohamad El Haj
collection DOAJ
description The present manuscript synthesizes research using pupillometry to assess cognitive and affective processing in the aging population. There are two main findings: first, pupil size tends to enlarge as the cognitive load increases in older adults and a contrasting trend emerges when the load surpasses the capacity of the working memory, resulting in a reduction of pupil size; second, the processing of positive information typically reduces pupil size in older adults, suggesting the limited cognitive resources required for attending to positive content, while negative information increases pupil size, reflecting the cognitive effort required to regulate the emotional impact of negative information. Attention is drawn to the physiological mechanisms driving pupil reactivity during cognitive and affective processing in the aging population. The article also pinpoints the technical intricacies of using pupillometry to investigate cognitive and affective processing. In sum, it demonstrates the contribution of pupillometry as a reliable indicator for tracking cognitive and affective processing in the context of aging.
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spelling doaj.art-4b1dcae93eea4292b28bcc2406b062c12024-04-07T04:36:49ZengElsevierBrain Disorders2666-45932024-06-0114100129Pupillometry as tool to assess cognitive and affective processing in agingMohamad El Haj0Institut Universitaire de France, Paris, France; CHU Nantes, Clinical Gerontology Department, Bd Jacques Monod, Nantes F44093, France; Correspondence to: Faculté de Psychologie, LPPL – Laboratoire de Psychologie des Pays de la Loire, Université de Nantes, Chemin de la Censive du Tertre, 44312 Nantes Cedex 3, BP 81227, France.The present manuscript synthesizes research using pupillometry to assess cognitive and affective processing in the aging population. There are two main findings: first, pupil size tends to enlarge as the cognitive load increases in older adults and a contrasting trend emerges when the load surpasses the capacity of the working memory, resulting in a reduction of pupil size; second, the processing of positive information typically reduces pupil size in older adults, suggesting the limited cognitive resources required for attending to positive content, while negative information increases pupil size, reflecting the cognitive effort required to regulate the emotional impact of negative information. Attention is drawn to the physiological mechanisms driving pupil reactivity during cognitive and affective processing in the aging population. The article also pinpoints the technical intricacies of using pupillometry to investigate cognitive and affective processing. In sum, it demonstrates the contribution of pupillometry as a reliable indicator for tracking cognitive and affective processing in the context of aging.http://www.sciencedirect.com/science/article/pii/S2666459324000143Affective processingAgingCognitive processingPupilPupillometry
spellingShingle Mohamad El Haj
Pupillometry as tool to assess cognitive and affective processing in aging
Brain Disorders
Affective processing
Aging
Cognitive processing
Pupil
Pupillometry
title Pupillometry as tool to assess cognitive and affective processing in aging
title_full Pupillometry as tool to assess cognitive and affective processing in aging
title_fullStr Pupillometry as tool to assess cognitive and affective processing in aging
title_full_unstemmed Pupillometry as tool to assess cognitive and affective processing in aging
title_short Pupillometry as tool to assess cognitive and affective processing in aging
title_sort pupillometry as tool to assess cognitive and affective processing in aging
topic Affective processing
Aging
Cognitive processing
Pupil
Pupillometry
url http://www.sciencedirect.com/science/article/pii/S2666459324000143
work_keys_str_mv AT mohamadelhaj pupillometryastooltoassesscognitiveandaffectiveprocessinginaging