Self-awakening improves alertness in the morning and during the day after partial sleep deprivation.
J Sleep Res
; 23(6): 673-680, 2014 Dec.
Article
em En
| MEDLINE
| ID: mdl-25130898
ABSTRACT
The ability to awaken at a predetermined time without an alarm is known as self-awakening. Self-awakening improves morning alertness by eliminating sleep inertia; however, the effects of self-awakening on daytime alertness and alertness that has deteriorated as a result of sleep loss are unknown. The aim of this study was to determine the effects of self-awakening on both morning and daytime alertness after partial sleep deprivation. Fifteen healthy males without the habit of self-awakening participated in a cross-over trial including forced awakening and self-awakening conditions. In each condition, participants' sleep was restricted to 5 h per night in their homes for 4 consecutive days. They completed a psychomotor vigilance task and subjective ratings of sleepiness immediately upon awakening each morning. On the fourth day, participants completed subjective ratings of sleepiness, a psychomotor vigilance task and sleep latency tests in the laboratory seven times at 1-h intervals during the day. The response speed on the psychomotor vigilance task, in the morning and during the day, was higher in the self-awakening than the forced awakening condition. Our results showed that self-awakening improved alertness (assessed by response speeds) by reducing sleep inertia and alleviated daytime sleepiness heightened by partial sleep deprivation.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Atenção
/
Sono
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Privação do Sono
/
Vigília
Tipo de estudo:
Clinical_trials
Limite:
Adult
/
Humans
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Male
Idioma:
En
Revista:
J Sleep Res
Assunto da revista:
PSICOFISIOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Japão