"Time since sleep" and "body clock" components of alertness and cognition.
Folkard
S
S
MRC/ESRC Social and Applied Psychology Unit, Sheffield, England.
Totterdell
P
P
D001143:Arousal / Q000502:physiology; D002940:Circadian Rhythm; D006801:Humans; D012890:Sleep / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology