Authors
Ruth M Benca, William H Obermeyer, Christine L Larson, Blenda Yun, Isa Dolski, Kenneth D Kleist, Steven M Weber, Richard J Davidson
Publication date
1999/7
Journal
Psychophysiology
Volume
36
Issue
4
Pages
430-436
Publisher
Cambridge University Press
Description
Asymmetry of waking electroencephalography (EEG) alpha power in frontal regions has been correlated with waking emotional reactivity and the emotional content of dream reports. Little is known regarding alpha asymmetry during sleep. The present study was performed to compare alpha power and alpha power asymmetry in various brain regions across states of sleep and wakefulness. Waking and sleep EEG were recorded in a group of patients undergoing polysomnographic evaluation for possible sleep disorders. Alpha EEG asymmetry in frontal and temporal regions was significantly correlated in waking versus sleep, particularly during rapid eye movement (REM) sleep. These results suggest that patterns of frontal alpha asymmetry are stable across sleep and waking and may be related to emotional reactivity during dreaming. During sleep, alpha power was highest during slow-wave sleep and lowest …
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Scholar articles
RM Benca, WH Obermeyer, CL Larson, B Yun, I Dolski… - Psychophysiology, 1999