Episodic thought distinguishes spontaneous cognition in waking from REM and NREM sleep.
Conscious Cogn
; 97: 103247, 2022 01.
Article
em En
| MEDLINE
| ID: mdl-34864360
Evidence suggests continuity between cognition in waking and sleeping states. However, one type of cognition that may differ is episodic thoughts of the past and future. The current study investigated this across waking, NREM sleep and REM sleep. We analyzed thought reports obtained from a large sample of individuals (N = 138) who underwent experience-sampling during wakefulness as well as serial awakenings in sleep. Our data suggest that while episodic thoughts are common during waking spontaneous thought, episodic thoughts of both the past and the future rarely occur in either N2 or REM sleep. Moreover, replicating previous findings, episodic thoughts during wakefulness exhibit a strong prospective bias and frequently involve autobiographical planning. Together, these results suggest that the occurrence of spontaneous episodic thoughts differs substantially across waking and dreaming sleep states. We suggest that this points to a difference in the way that human consciousness is typically experienced across the sleep-wake cycle.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sono REM
/
Vigília
Tipo de estudo:
Observational_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article