A. Smith et A. Maben, EFFECTS OF SLEEP-DEPRIVATION, LUNCH, AND PERSONALITY ON PERFORMANCE, MOOD, AND CARDIOVASCULAR FUNCTION, Physiology & behavior, 54(5), 1993, pp. 967-972
The present study examined the effects of sleep deprivation on perform
ance, mood, and cardiovascular functioning in the late morning and ear
ly afternoon. The results showed that the sleep-deprived subjects felt
less alert and detected fewer targets in a cognitive vigilance task.
Selective impairments due to sleep deprivation were also observed in a
logical reasoning task. There was little evidence to suggest that con
sumption of lunch altered these effects of sleep deprivation. However,
individual differences in the effects of sleep deprivation were appar
ent, with trait anxiety being related to the changes in subjective ale
rtness produced by sleep deprivation, and sleep-deprived extraverts sh
owing greater performance impairments than the sleep-deprived introver
ts.