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ID 879
file
title alternative
Hypnagogic EEG stages and polysomnogram
creator
HIBINO, Kenji
HORI, Tadao
subject
入眠期
ポリソムノグラム
脳波段階
入眠時心像
NDC
Medical sciences
abstract
The aim of this study is to show the polysomnogram of hypnagogic period. Sixteen subjects slept for two nights. Their EEGs (Fz, Cz, Pz, Oz), horizontal and vertical EOGs, submentalis EMG, thoracic and abdominal respiration were recorded. They pressed a button when pip tones (1000Hz, 50dB, max duration : 5s, ISI : 30-90s) were presented, and reported their psychological experiences, According to Hori et al. (1994), the hypnagogic EEGs just 5s before the pip tones were classified into 9 stages, as follows; 1) alpha wave train, 2) alpha wave intermittnet (%α>50), 3) alpha wave intermittent (%α<50), 4) EEG flattening, 5) ripples, 6) vertex sharp wave solitary, 7) vertex sharp wave bursts, 8) vertex sharp wave and incomplete spindles, 9) spindles. The polysomnograms of these 9 EEG stages were presented. Physiological, behavioral and subjective changes were observed as a function of hypnagogic EEG stages.
journal title
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
volume
Volume 25
start page
125
end page
140
date of issued
1999-12-28
publisher
広島大学総合科学部
contributor
国立情報学研究所
date of created
2006-03-21
issn
1340-8364
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Integrated Arts and Sciences
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