title: Sleep deprivation influences diurnal variation of human time perception with prefrontal activity change: a functional near-infrared spectroscopy study.
abstract: Human short-time perception shows diurnal variation. In general, short-time perception fluctuates in parallel with circadian clock parameters, while diurnal variation seems to be modulated by sleep deprivation per se. Functional imaging studies have reported that short-time perception recruits a neural network that includes subcortical structures, as well as cortical areas involving the prefrontal cortex (PFC). It has also been reported that the PFC is vulnerable to sleep deprivation, which has an influence on various cognitive functions. The present study is aimed at elucidating the influence of PFC vulnerability to sleep deprivation on short-time perception, using the optical imaging technique of functional near-infrared spectroscopy. Eighteen participants performed 10-s time production tasks before (at 21:00) and after (at 09:00) experimental nights both in sleep-controlled and sleep-deprived conditions in a 4-day laboratory-based crossover study. Compared to the sleep-controlled condition, one-night sleep deprivation induced a significant reduction in the produced time simultaneous with an increased hemodynamic response in the left PFC at 09:00. These results suggest that activation of the left PFC, which possibly reflects functional compensation under a sleep-deprived condition, is associated with alteration of short-time perception.
authors.affiliation: Department of Psychophysiology, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Soshi
authors.forename: Kenichi
authors.initials: K
authors.lastname: Kuriyama
authors.forename: Sayaka
authors.initials: S
authors.lastname: Aritake
authors.forename: Minori
authors.initials: M
authors.lastname: Enomoto
authors.forename: Akiko
authors.initials: A
authors.lastname: Hida
authors.forename: Miyuki
authors.initials: M
authors.lastname: Tamura
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Kim
authors.forename: Kazuo
authors.initials: K
authors.lastname: Mishima
mesh_terms: D002940:Circadian Rhythm; D003071:Cognition; D018592:Cross-Over Studies; D006801:Humans; D017397:Prefrontal Cortex / Q000503:physiopathology*; D012892:Sleep Deprivation; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013998:Time Perception