[The overestimation of performance: a ...
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
[The overestimation of performance: a specific bias of aging?].
Auteur(s) :
Titre de la revue :
Geriatrie et psychologie neuropsychiatrie du vieillissement
Nom court de la revue :
Geriatr Psychol Neuropsychiatr Vieil
Numéro :
9
Pagination :
287-94
Date de publication :
2011-09-01
ISSN :
2115-8789
Mot(s)-clé(s) en anglais :
Adult
Aged
Aged, 80 and over
Bias
Female
Humans
Male
Neurologic Examination
Postural Balance
Psychomotor Performance
Visual Perception
Young Adult
Aged
Aged, 80 and over
Bias
Female
Humans
Male
Neurologic Examination
Postural Balance
Psychomotor Performance
Visual Perception
Young Adult
Résumé en anglais : [en]
The decline of postural abilities with age leads to increased falls. In this study, we suggest that a disturbance in the perception of postural affordances, characterized by an overestimation of performance, could be a ...
Lire la suite >The decline of postural abilities with age leads to increased falls. In this study, we suggest that a disturbance in the perception of postural affordances, characterized by an overestimation of performance, could be a major risk of falls specifically in the elderly. In addition, we test the possible link between the overestimation of capabilities and postural balance as we know degraded in the elderly. A group of 10 young subjects (M = 24.2 years ± 2.04) and a group of 10 elderly subjects (M = 75.9 years ± 5.7) must evaluate, without action, the maximum height of an obstacle that they can stride over. Then their postural performances are measured. The results show that, contrary to young people who correctly evaluate their performance (difference of 1.75 cm between estimated performance and real performance), older participants overestimate their maximum height of crossing over (12.5 cm difference between performance and estimated real performance). Moreover, the overestimation of performance is associated with poor postural stability. The bias of overestimation may stem from a lack of updating of motor programs caused by a functional brain change with age and/or lack of exercise who reduces updating by trial and error.Lire moins >
Lire la suite >The decline of postural abilities with age leads to increased falls. In this study, we suggest that a disturbance in the perception of postural affordances, characterized by an overestimation of performance, could be a major risk of falls specifically in the elderly. In addition, we test the possible link between the overestimation of capabilities and postural balance as we know degraded in the elderly. A group of 10 young subjects (M = 24.2 years ± 2.04) and a group of 10 elderly subjects (M = 75.9 years ± 5.7) must evaluate, without action, the maximum height of an obstacle that they can stride over. Then their postural performances are measured. The results show that, contrary to young people who correctly evaluate their performance (difference of 1.75 cm between estimated performance and real performance), older participants overestimate their maximum height of crossing over (12.5 cm difference between performance and estimated real performance). Moreover, the overestimation of performance is associated with poor postural stability. The bias of overestimation may stem from a lack of updating of motor programs caused by a functional brain change with age and/or lack of exercise who reduces updating by trial and error.Lire moins >
Comité de lecture :
Oui
Audience :
Non spécifiée
Établissement(s) :
Université de Lille
Date de dépôt :
2022-06-10T20:12:02Z