EEG spectral activity during paradoxical sleepfurther evidence for cognitive processing
作者:
Christophe Jouny,
Florian Chapotot,
Helli Merica,
期刊:
NeuroReport
(OVID Available online 2000)
卷期:
Volume 11,
issue 17
页码: 3667-3671
ISSN:0959-4965
年代: 2000
出版商: OVID
关键词: Cognitive processing;Gamma activity, Paradoxical sleep;REM sleep;Spectral analysis
数据来源: OVID
摘要:
Paradoxical sleep (PS), in which periods with (phasic) and without (tonic) rapid eye movements are intermingled, is hypothesized to be related to cognitive processing and dreaming. Based on polysomnographic data from 12 healthy subjects, this study focuses on the spectral differentiation between phasic and tonic periods. Phasic PS periods exhibited decreased theta and alpha power in the posterior brain areas suggesting the interference of visual processing related to dream imagery. Phasic PS periods were also characterized by a shift from beta to gamma activity in frontal, central and occipital areas reflecting specific phasic related activation. Together, these findings bring new evidence for the existence of visual imagery and cognitive processing during phasic PS.
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