Document Detail


Topographic mapping of electroencephalography coherence in hypnagogic state.
MedLine Citation:
PMID:  9628119     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study examined the topographic characteristics of hypnagogic electroencephalography (EEG), using topographic mapping of EEG power and coherence corresponding to nine EEG stages (Hori's hypnagogic EEG stages). EEG stages 1 and 2, the EEG stages 3-8, and the EEG stage 9 each correspond with standard sleep stage W, 1 and 2, respectively. The dominant topographic components of delta and theta activities increased clearly from the vertex sharp-wave stage (the EEG stages 6 and 7) in the anterior-central areas. The dominant topographic component of alpha 3 activities increased clearly from the EEG stage 9 in the anterior-central areas. The dominant topographic component of sigma activities increased clearly from the EEG stage 8 in the central-parietal area. These results suggested basic sleep process might start before the onset of sleep stage 2 or of the manually scored spindles.
Authors:
H Tanaka; M Hayashi; T Hori
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Psychiatry and clinical neurosciences     Volume:  52     ISSN:  1323-1316     ISO Abbreviation:  Psychiatry Clin. Neurosci.     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-09-01     Completed Date:  1998-09-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9513551     Medline TA:  Psychiatry Clin Neurosci     Country:  AUSTRALIA    
Other Details:
Languages:  eng     Pagination:  147-8     Citation Subset:  IM    
Affiliation:
Department of Behavioral Sciences, Faculty of Integrated Arts and Sciences, Hiroshima University, Kagamiyama, Higashi-Hiroshima, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Alpha Rhythm
Brain Mapping*
Cerebral Cortex / physiology
Delta Rhythm
Dreams / physiology*
Electroencephalography*
Fourier Analysis
Humans
Male
Signal Processing, Computer-Assisted
Sleep Stages / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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