QUANTITATIVE SURVEY OF KAPPA AND ALPHA EEG ACTIVITY
QUANTITATIVE SURVEY OF KAPPA AND ALPHA EEG ACTIVITY
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DOI：
10.1016/0013-4694(62)90136-0
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发表时间：
1962-01-01
期刊：
影响因子：
--
通讯作者：
BRAGDON, HR
中科院分区：
文献类型：
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作者：
CHAPMAN, RM;ARMINGTON, JC;BRAGDON, HR
电子脑电图[脑电图]得分手被用来量化100名正常受试者的颞卡卡帕和枕αEEG活动，而他们睁开和闭上了艰苦而轻松的任务。除了统计评估的平均数据外，还显示了具有各种脑电图分数的受试者百分比。 KAPPA分数的分布表明，受试者之间的差异是定量的，而不是定性的。与简单的任务相比，诸如添加的艰巨任务（例如添加）倾向于给出更高的Kappa分数和更低的Alpha分数，例如计数和保持“空白的头脑”。在闭合眼睛和睁开眼睛的情况下，发现了艰苦任务上的Kappa活动的增加，而仅当闭上眼睛时，就发现了在艰苦任务上α活动的减少。不管任务难度如何，闭上眼睛时的Alpha和Kappa的得分都比开放时要高。眼睛状况对α评分的影响要比KAPPA评分大得多。脑电图分数和发现非常可靠。提供了支持Kappa和Alpha EEG活动之间区别的证据。通过假设Kappa和Alpha活动是独立的，并且偶然地发生，从而定量地解释了同时的Kappa和Alpha分数。在Kappa分数与身高，体重，教育和焦虑估计之间发现了很小但统计上可靠的相关性。
An electronic EEG [electroencephalographic] scorer was used to quantify temporal kappa and occipital alpha EEG activities in 100 normal subjects while they were performing hard and easy tasks with their eyes open and closed. The percent of subjects with various EEG scores was shown, in addition to the average data which were statistically evaluated. The distribution of kappa scores suggests that differences between subjects are quantitative rather than qualitative. Hard tasks, such as adding, tended to give higher kappa scores and lower alpha scores than easy tasks, such as counting and keeping a "blank mind". The increase in kappa activity on hard tasks was found both with eyes closed and eyes open, whereas the decrease in alpha activity on hard tasks was found only when the eyes were closed. Regardless of task difficulty, both alpha and kappa scores tended to be higher when the eyes were closed than when they were open. The effect of eye condition was much greater on the alpha scores than on the kappa scores. The EEG scores and the findings were highly reliable. Evidence supporting the distinction between kappa and alpha EEG activities was presented. Simultaneous kappa and alpha scores were quantitatively accounted for by assuming that the kappa and alpha activities are independent and occur simultaneously by chance. Small, but statistically reliable, correlations were found between kappa scores and height, weight, education, and anxiety estimates.