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Consistency of Task‐Related EEG Asymmetries
Author(s) -
Ehrlichman Howard,
Wiener Marjorie S.
Publication year - 1979
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1979.tb02986.x
Subject(s) - psychology , electroencephalography , audiology , task (project management) , reliability (semiconductor) , cognitive psychology , consistency (knowledge bases) , asymmetry , artificial intelligence , neuroscience , computer science , medicine , power (physics) , physics , management , quantum mechanics , economics
Temporoparietal EEG was recorded bilaterally while 11 subjects performed 4 verbal and 4 spatial tasks on two occasions. Significant differences in integrated EEG asymmetry (8‐12 Hz) were found between verbal and spatial tasks in both sessions. Subjects’ verbal‐minus‐spatial differences in the ratio of left to right integrated amplitude were reliable both between‐ (r =.88) and within‐(mean r =.75) subjects. A percent time measure did not show significant task effects and had poor reliability. For integrated amplitude, the means of the left/right ratios of the 8 tasks were also very consistent between sessions.