TY - JOUR
T1 - EEG Power Density during Nap Sleep
T2 - Reflection of an Hourglass Measuring the Duration of Prior Wakefulness
AU - Dijk, Derk Jan
AU - Beersma, Domien G.M.
AU - Daan, Serge
N1 - Relation: http://www.rug.nl/fwn/onderzoek/programmas/cbn/index
Rights: University of Groningen, Centre for Behaviour and Neurosciences
PY - 1987
Y1 - 1987
N2 - The relation between the duration of prior wakefulness and EEG power density during sleep in humans was assessed by means of a study of naps. The duration of prior wakefulness was varied from 2 to 20 hr by scheduling naps at 1000 hr, 1200 hr, 1400 hr, 1600 hr, 1800 hr, 2000 hr, and 0400 hr. In contrast to sleep latencies, which exhibited a minimum in the afternoon, EEG power densities in the delta and theta frequencies were a monotonic function of the duration of prior wakefulness. The data support the hypothesis that EEG power density during non-rapid eye movement sleep is only determined by the prior history of sleep and wakefulness and is not determined by clock-like mechanisms.
AB - The relation between the duration of prior wakefulness and EEG power density during sleep in humans was assessed by means of a study of naps. The duration of prior wakefulness was varied from 2 to 20 hr by scheduling naps at 1000 hr, 1200 hr, 1400 hr, 1600 hr, 1800 hr, 2000 hr, and 0400 hr. In contrast to sleep latencies, which exhibited a minimum in the afternoon, EEG power densities in the delta and theta frequencies were a monotonic function of the duration of prior wakefulness. The data support the hypothesis that EEG power density during non-rapid eye movement sleep is only determined by the prior history of sleep and wakefulness and is not determined by clock-like mechanisms.
U2 - 10.1177/074873048700200304
DO - 10.1177/074873048700200304
M3 - Article
VL - 2
SP - 207
EP - 219
JO - Journal of Biological Rhythms
JF - Journal of Biological Rhythms
SN - 0748-7304
IS - 3
ER -