睡眠時の情報処理機能について(2) : 睡眠紡錘波と聴覚刺激の受容特性(経営情報工学科)

概要

論文の詳細を見る
In order to understand human information processing mechanism in the human brain during Sleep, the auditory stimulus was presented to the subject during the Sleep. However, the human information processing mechanism remains unknown during Sleep. The purpose of the present study was to investigate the role of the spindle in information processing during Sleep Stage 2, by using the auditory stimulus. The one healthy university student (aged 21 years) participated in this study. The night sleep was polygraphically recorded from mid night (0:00) to the morning (8:00). The continuous 3 nights were recorded for the natural sleep, and after that the 9 nights were recorded under the auditory stimulus condition in the 3 weeks. The auditory stimulus of 45dB and 70dB SPL was presented during Sleep Stage 2 through the earphone system. Trials for event related potentials (ERPs) were sorted on the basis of stimulus intensity and the presence or absence of a Sleep Spindle Wave. When Spindle Wave desynchronized the onset of the stimulus of 70dB, N1 and P2 elicited. However, P2 was affected by the presence of Spindle Wave. Therefore, Spindle Wave might be a consequence of the receptive gate close of external stimulus.
足利工業大学の論文
2005-03-18