STABILITY OF EEG LATERALITY EFFECTS

被引：27

作者：

AMOCHAEV, A ^{[1
]}

SALAMY, A ^{[1
]}

机构：

[1] UNIV CALIF SAN FRANCISCO,LANGLEY PORTER NEUROPSYCHIAT INST,BRAIN BEHAV RES CTR,SAN FRANCISCO,CA 94143

来源：

PSYCHOPHYSIOLOGY | 1979年 / 16卷 / 03期

关键词：

Cognitive mode; EEG laterality; Hemispheric asymmetries;

D O I：

10.1111/j.1469-8986.1979.tb02985.x

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Task related interhemispheric asymmetries of ongoing EEG activity (alpha band) were tested for stability across three separate occasions. Seven cognitive tasks, presumed to differentially engage either the left or right cerebral hemisphere, were presented to 6 subjects. Involvement with the tasks was determined by evaluation of performance and with a subjective report on degree of involvement. Bilateral EEG was recorded over the parietal areas referenced to an ipsilateral ear, vertex and a central placement, on separate channels. Spectral intensity estimates of 8–13 Hz activity were used to form left/right ratios for determination of asymmetry. Intra‐subject stability of alpha band activity was found to improve with the establishment of task validity and to be related to the electrode placement used. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：242 / 246

页数：5

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