Greater intermanual transfer in the elderly suggests age-related bilateral motor cortex activation is compensatory.
J Mot Behav
; 47(1): 47-55, 2015.
Article
en En
| MEDLINE
| ID: mdl-25575222
ABSTRACT
Hemispheric lateralization of movement control diminishes with age; whether this is compensatory or maladaptive is debated. The authors hypothesized that if compensatory, bilateral activation would lead to greater intermanual transfer in older subjects learning tasks that activate the cortex unilaterally in young adults. They studied 10 young and 14 older subjects, learning a unimanual visuomotor task comprising a feedforward phase, where there is unilateral cortical activation in young adults, and a feedback phase, which activates the cortex bilaterally in both age groups. Increased intermanual transfer was demonstrated in older subjects during feedforward learning, with no difference between groups during feedback learning. This finding is consistent with bilateral cortical activation being compensatory to maintain performance despite declining computational efficiency in neural networks.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Transferencia de Experiencia en Psicología
/
Envejecimiento
/
Corteza Motora
Tipo de estudio:
Prognostic_studies
Límite:
Adult
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Aged
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Aged80
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Humans
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Middle aged
Idioma:
En
Revista:
J Mot Behav
Año:
2015
Tipo del documento:
Article
País de afiliación:
Reino Unido