Intermittent awakenings during the nocturnal sleep in healthy young subjects

Hono, Takahiro; Matsunaka, Kumiko; Miyata, Yô; Hiroshige, Yoshiharu

doi:10.5674/jjppp1983.9.1

Cited by 1 publication

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“…With nighttime sleep, some researchers have claimed that the intention to self-awaken might reduce slow wave sleep and sleep might be shallow (Watanabe, 1969;Hono, Hiroshige, & Miyata, 1991). In a situation when people must wake at a designated time, e.g., when they have to catch a train early the next morning, intention to self-awaken would seem likely to make sleep light.…”

Section: Discussionmentioning

confidence: 99%

Self-Awakening, Sleep Inertia, and P3 Amplitude in Elderly People

et al. 2006

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It is well known that sleepiness is sometimes experienced in the afternoon. A short afternoon nap is thought to be effective in reducing sleepiness. However, sleep inertia occurs even after a short nap, and this could be a major risk factor for injuries from falling by the elderly. In the present study, the effect of self-awakening on sleep inertia after a 20-min. nap was examined. Nine participants (M=74.1 yr., SD=5.0 yr.) took part in the three experimental conditions: the self-awakened nap, the forced-awakened nap, and the control (no-nap) conditon. Analysis showed sleepiness and performance after the nap significantly improved compared with the control condition. P3 amplitude tended to be larger after self-awakening than after forced-awakening. The present study indicates a 20-min. nap reduces afternoon sleepiness, and the application of self-awakening may contribute to higher arousal after a nap taken by this elderly group.

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Section: Discussionmentioning

confidence: 99%