In addition to being less
integrated, neural activity also becomes less localized in some brain
regions, particularly the prefrontal cortex, in response to executivelevel
tasks3,4. By contrast, young adults activate more-discrete brain
regions to perform the same tasks and integrate these regions more
closely with other brain regions.
Aged individuals who exhibit delocalized
activity show better cognitive performance than aged individuals
with more localized activity, consistent with the idea that delocalization
may be a compensatory response3,5
In addition to being lessintegrated, neural activity also becomes less localized in some brainregions, particularly the prefrontal cortex, in response to executiveleveltasks3,4. By contrast, young adults activate more-discrete brainregions to perform the same tasks and integrate these regions moreclosely with other brain regions. Aged individuals who exhibit delocalizedactivity show better cognitive performance than aged individualswith more localized activity, consistent with the idea that delocalizationmay be a compensatory response3,5
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