EEG differences between eyes-closed and eyes-open resting remain in healthy ageing
EEG differences between eyes-closed and eyes-open resting remain in healthy ageing
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DOI：
10.1016/j.biopsycho.2017.09.010
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发表时间：
2017-10-01
影响因子：
2.6
通讯作者：
De Blasio, Frances M.
中科院分区：
文献类型：
--
作者：
Barry, Robert J.;De Blasio, Frances M.
在年轻人和儿童中，闭眼(EC)休息状态是低EEG唤醒状态之一，而睁眼(EO)状态的改变主要涉及唤醒的增加。我们使用这种唤醒视角来解释健康的年轻人和老年人的EC/EO差异。20名青年(男性=20.4岁)和20名性别匹配的老年人(男性=68.2岁)在两个3min的休息条件下记录EEG；年龄较大的参与者表现出较少的Delta和theta，一些Alpha减少，而Beta增加。所有波段的全球活动都随着睁开眼睛而减少，但不随年龄变化而不同，这表明在健康的衰老过程中，脑电反应的能量保持不变。然而，老年人比年轻人有更多的焦点变化，特别是在Beta阶段，这表明额外的本地化资源被调动起来。这种保持的反应性和高度的局部活动，可能是健康老龄化中保持的表现水平的基础。
In young adults and children, the eyes-closed (EC) resting state is one of low EEG arousal, with the change to eyes-open (EO) primarily involving an increase in arousal. We used this arousal perspective to interpret EC/ EO differences in healthy young and older adults. EEG was recorded from 20 young (Mage = 20.4 years) and 20 gender-matched older (M-age = 68.2 years) right-handed adults during two 3 min resting conditions; EC then EO. Older participants displayed less delta and theta, some reduction in alpha, and increased beta. Global activity in all bands reduced with opening the eyes, but did not differ with age, indicating that the energetics of EEG reactivity is maintained in healthy ageing. However, older adults had more focal changes than young adults, particularly in beta, suggesting the mobilisation of additional localised resources. This maintained reactivity, and heightened focal activity, may underlie preserved performance levels in healthy ageing.