Resting EEG theta power correlates with cognitive performance in healthy older adults
Resting EEG theta power correlates with cognitive performance in healthy older adults
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DOI：
10.1111/j.1469-8986.2010.01173.x
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发表时间：
2011-08-01
期刊：
影响因子：
3.7
通讯作者：
Robertson, Ian H.
中科院分区：
文献类型：
--
作者：
Finnigan, Simon;Robertson, Ian H.
我们研究了 73 名健康老年人（56-70 岁）的静息脑电图带功率与认知表现的相关程度。相对 theta (4-6.5 Hz) 功率与即时和延迟言语回忆、注意力和执行功能测量显着相关。相对 delta 和 alpha 功率以及峰值 alpha 频率与任何认知测量均不相关。这些数据表明，健康老年人的高静息θ功率与更好的认知功能相关，并且可能是健康神经认知衰老的标志。将这些结果与之前的发现进行比较表明，可能存在两种形式的 θ 频率振荡：一个表明健康的神经认知功能，另一个表明脑电图/阿尔法减慢与（未来）认知能力的大幅下降有关。未来对认知衰老或衰退的脑电图研究应分析相对 theta 功率和脑电图/α 减慢程度，以免混淆。
We address the degree to which resting EEG bandpower is associated with cognitive performance in 73 healthy older adults (aged 56-70). Relative theta (4-6.5 Hz) power was significantly correlated with immediate and delayed verbal recall, attention, and executive function measures. Relative delta and alpha power and peak alpha frequency did not correlate with any cognitive measures. These data indicate that high resting theta power in healthy older adults is associated with better cognitive function and may be a marker of healthy neurocognitive aging. Comparison of these with previous findings suggests that two forms of theta-frequency oscillations may exist; one indicative of healthy neurocognitive function and the other, EEG/alpha slowing linked to (future) substantial cognitive decline. Future EEG investigations of cognitive aging or decline should analyze both relative theta power and degree of EEG/alpha slowing so as not to confound these.