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Aging and the Response to Changes in Task Difficulty

Published online by Cambridge University Press:  29 November 2010

Robert Kerr  and
Martha S. Teaffe
Robert Kerr
Affiliation:
University of Ottawa
Martha S. Teaffe
Affiliation:
University of Ottawa
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Résumé

Un exercice de repérage de signaux discontinus a été employé pour évaluer le processus de planification du mouvement (relié aux paramètres de direction et d'amplitude) comme source du ralentissement de l'initiation et de la production du mouvement chez les personnes âgées. Les personnes âgées ont démontré des temps de réaction et de mouvement plus lents, cette lenteur variant en fonction de la quantité d'informations traitées pour accomplir le mouvement. Cependant, les personnes âgées ont semblé aussi capables que des individus plus jeunes de corriger des erreurs imprévues de mouvement. Les données suggèrent que, bien que le processus de sélection du mouvement puisse constituer un facteur qui contribue au ralentissement chez les personnes âgées, l'identification de paramètres spécifiques du mouvement peut s'avérer plus importante dans l'accomplissement de certains mouvements que les quelques déficits généralisés associés au vieillissement.

Keywords

Vieillissementapprentissagedifficulté avec les tâchessuivi.AgingLearningTask DifficultyTracking.
Type
Articles
Information
Canadian Journal on Aging / La Revue canadienne du vieillissement , Volume 10 , Issue 1 , Spring/printemps 1991 , pp. 18 - 28
Copyright
Copyright © Canadian Association on Gerontology 1991

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