脳波を指標とした大脳半球機能差のウルトラディアン・リズム
広島大学総合科学部紀要. III, 情報行動科学研究 Volume 12
Page 15-22
published_at 1989-02-28
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| File | |
| Title ( jpn ) |
脳波を指標とした大脳半球機能差のウルトラディアン・リズム
|
| Title ( eng ) |
Ultradian rhythms in interhemispheric EEG activities
|
| Creator |
Hori Tadao
|
| Source Title |
広島大学総合科学部紀要. III, 情報行動科学研究
Memoirs of the Faculty of Integrated Arts and Sciences. III, Studies in information and behavior sciences
|
| Volume | 12 |
| Start Page | 15 |
| End Page | 22 |
| Abstract |
Ultradian variations of interhemispheric activities were studied on 8 right-handed male subjects. Parietal EEG (P3, P4) was recorded every 30 min for 1-min duration from 08:00 to 19:00 in eyes closed rest periods. EEG laterality index scores (LISs) were calculated from the amplitude (square root of power) of alpha (8-13Hz). LISs showed significant periodicities in all subjects, indicating EEG asymmetries fluctuate with time. Moreover, the periods and acrophases of the observed ultradian variations were different among the subjects. The relationships between the EEG asymmetry and the cognitive functions were discussed.
|
| NDC |
Medical sciences [ 490 ]
|
| Language |
jpn
|
| Resource Type | departmental bulletin paper |
| Publisher |
広島大学総合科学部
|
| Date of Issued | 1989-02-28 |
| Rights |
Copyright (c) 1988 by Faculty of Integrated Arts and Sciences, Hiroshima University. All rights reserved.
|
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0385-1478
[NCID] AN00116614
|
