The implications of cortical recruitment and brain morphology for individual differences in inhibitory function in aging humans.
Psychol Aging
; 20(3): 363-75, 2005 Sep.
Article
em En
| MEDLINE
| ID: mdl-16248697
ABSTRACT
The authors assessed individual differences in cortical recruitment, brain morphology, and inhibitory task performance. Similar to previous studies, older adults tended toward bilateral activity during task performance more than younger adults. However, better performing older adults showed less bilateral activity than poorer performers, contrary to the idea that additional activity is universally compensatory. A review of the results and of extant literature suggests that compensatory activity in prefrontal cortex may only be effective if the additional cortical processors brought to bear on the task can play a complementary role in task performance. Morphological analyses revealed that frontal white matter tracts differed as a function of performance in older adults, suggesting that hemispheric connectivity might impact both patterns of recruitment and cognitive performance.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Recrutamento Neurofisiológico
/
Córtex Cerebral
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Inibição Neural
Tipo de estudo:
Etiology_studies
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Incidence_studies
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Observational_studies
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Risk_factors_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article