Age-related neural correlates of cognitive task performance under increased postural load
| Autor: | Jaak Duysens, James P. Coxon, A. Van Impe, Nici Wenderoth, Sjoerd M. Bruijn, Stephan P. Swinnen, Stefan Sunaert |
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| Přispěvatelé: | Movement Behavior, Research Institute MOVE |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty Aging Adolescent Neural substrate Posture Sitting Research Support Article Mental rotation Young Adult Physical medicine and rehabilitation Cognition Mental Processes Reference Values Parietal Lobe Neural Pathways Task Performance and Analysis medicine Postural Balance 80 and over Journal Article Humans Attention Non-U.S. Gov't Aged Aged 80 and over Neural correlates of consciousness medicine.diagnostic_test Research Support Non-U.S. Gov't General Medicine Middle Aged Magnetic Resonance Imaging Human Movement & Fatigue DCN PAC - Perception action and control [NCEBP 10] Frontal Lobe Frontal lobe Female Geriatrics and Gerontology Psychology Functional magnetic resonance imaging Psychomotor Performance Cognitive psychology |
| Zdroj: | Journal of the American Aging Association, 35, 6, pp. 2111-24 Journal of the American Aging Association, 35, 2111-24 Van Impe, A, Bruijn, S M, Coxon, J P, Wenderoth, N, Sunaert, S, Duysens, J & Swinnen, S P 2013, ' Age-related neural correlates of cognitive task performance under increased postural load ', Age, vol. 35, no. 6, pp. 2111-24 . https://doi.org/10.1007/s11357-012-9499-2 Age, 35(6), 2111-24. Springer Netherlands |
| ISSN: | 1574-4647 0161-9152 |
| Popis: | Item does not contain fulltext Behavioral studies suggest that postural control requires increased cognitive control and visuospatial processing with aging. Consequently, performance can decline when concurrently performing a postural and a demanding cognitive task. We aimed to identify the neural substrate underlying this effect. A demanding cognitive task, requiring visuospatial transformations, was performed with varying postural loads. More specifically, old and young subjects performed mental rotations of abstract figures in a seated position and when standing on a force platform. Additionally, functional magnetic resonance imaging (fMRI) was used to identify brain regions associated with mental rotation performance. Old as compared to young subjects showed increased blood oxygenation level-dependent (BOLD) responses in a frontoparietal network as well as activations in additional areas. Despite this overall increased activation, they could still modulate BOLD responses with increasing task complexity. Importantly, activity in left lingual gyrus was highly predictive (r = -0.83, adjusted R(2) = 0.65) of the older subjects' degree of success in mental rotation performance when shifting from a sitting to a standing position. More specifically, increased activation in this area was associated with better performance, once postural load increased. 01 december 2013 |
| Databáze: | OpenAIRE |
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