What happens to mood, performance and sleep in a laboratory study with no sleep deprivation?
There are few studies examining changes in waking function in a laboratory environment with no sleep deprivation and mood has been largely overlooked in this context. The present study examined changes in mood, performance, sleep and sleepiness in the laboratory study with no sleep deprivation. Nineteen participants (10M, 9F; 22y ± 4.2y) were given nine 9h sleep opportunities (2300-0800). Every two hours during wake, participants completed the Mood Scale II, a 10-minute Psychomotor Vigilance Task and measures of sleepiness and fatigue. Sleep was monitored using an electroencephalographic montage. Findings revealed significant negative mood change, performance impairment, reduced total sleep time and sleep efficiency (all p < .05). These findings suggest that the laboratory environment or procedural factors may impair mood, performance and sleep. These findings may have implications for interpreting impairments in mood, performance and sleep when observed in laboratory environments.
Central Queensland University, Appleton Institute, 44 Greenhill Road, Wayville SA 5034.
Jessica L
JL
Paterson
University of South Australia, School of Psychology, Social Work and Social Policy, GPO Box 2471, Adelaide SA 5001.
Jill
J
Dorrian
Central Queensland University, Appleton Institute, 44 Greenhill Road, Wayville SA 5034.
Sally A
SA
Ferguson
Central Queensland University, Appleton Institute, 44 Greenhill Road, Wayville SA 5034.
Sarah M
SM
Jay
Central Queensland University, Appleton Institute, 44 Greenhill Road, Wayville SA 5034.
Drew
D
Dawson
control condition; laboratory; laboratory environment; mood; performance; sleep; sleep loss