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A Study of the Relationship between Eye Movements (EOG) and Arousal Levels (EEG) Kunihiro Isse 1 , Takuya Kojima 1 , Harunobu Ando 1 , Yasuo Shimazono 1 , Katsumi Ando 2 1Dept. of Neuro-psychiatry, Tokyo Medical & Dental University 2Dept. of Neuro-psychiatry, Kanazawa Medical College pp.537-544
Published Date 1978/5/15
DOI https://doi.org/10.11477/mf.1405202765

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  • Abstract
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 The process of the change from a high arousal level immediately after the sonic-electric stimulation to a natural sleep and the changes made by sonic stimulation in the initial stages of light sleep were recorded polygraphically on 23 normal subjects with closed eyes. The precise relationships between the EEG pattern and eye movements were studied.

 1) The process of the arousal level gradually deepening to a natural sleep from a high arousal level immediately after stimulation was divided into four stages by the use of EEG patterns as an index: Alert, Resting Ⅰ, Resting Ⅱ and Drowsy.

 2) Eye movements of R-type (large and rapid) significantly decreased as the arousal level deepened. A greater occurrence of eye movements of r-type (small and rapid) was observed at the stages of Alert and Resting Ⅰ, respectively, which are relatively high arousal levels. These movements significantly decreased as the level deepened to Resting Ⅱ and to Drowsy.

 3) The eye movements of s-type (small and slow) did not appear during the Alert stage, but significantly increased with the deepening of arousal levels.

 The S-type (large and slow) did not appear during the Alert and Resting Ⅰ stages, comparatively high arousal levels; however, they increased at Resting Ⅱ and Drowsy.

 In conclusion, in the process of proceeding from a high arousal level to a natural sleep, changes in eye movements closely correspond to the EEG pattern.

 4) The reactions of EEG and eye movements were observed not to correspond occasionally in case an arousal stimulation was given at the initial stage of light sleep. Simultaneously the adjusting mechanism of eye movements which varied according to the changes in arousal levels and emotions (uneasiness and tension) was also studied.


Copyright © 1978, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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