The implications of cortical recruitment and brain morphology for individual differences in inhibitory function in aging humans
The implications of cortical recruitment and brain morphology for individual differences in inhibitory function in aging humans
复制标题
DOI：
10.1037/0882-7974.20.3.363
复制
发表时间：
2005-09-01
影响因子：
3.7
通讯作者：
Scalf, P
中科院分区：
文献类型：
--
作者：
Colcombe, SJ;Kramer, AF;Scalf, P
作者评估了皮质募集、脑形态和抑制任务表现的个体差异。与以前的研究类似，老年人在任务执行过程中比年轻人更倾向于双侧活动。然而，表现较好的老年人表现出较少的双边活动比表现较差，相反的想法，额外的活动是普遍补偿。对结果和现存文献的回顾表明，只有当额外的皮层处理器在任务执行中发挥补充作用时，前额叶皮层的补偿活动才可能有效。形态学分析显示，额叶白色物质束不同的功能，在老年人的表现，这表明半球的连接可能会影响招聘和认知性能的模式。
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.