2013.06.18

Quality of prior waking experience is shown to greatly influence sleepiness [PNAS]

Dr. Masashi Yanagisawa, Director of the International Institute for Integrative Sleep Medicine, and his research group conducted experiments on mice using two different methods of 6-hour sleep deprivation, in which a dissociation of sleep need (ease of falling into a deep sleep) and level of arousal, or sleepiness, (ease of falling asleep) are observed. Sleepiness has been proven to vary depending on various experiences during waking. In addition, through a phosphor-proteomic approach, the research team has succeeded in identifying separate CNS biochemical signatures associated with sleep need and sleepiness.

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  • Quality of prior waking experience is shown to greatly influence sleepiness [PNAS]