Related Experiment Videos
Effects of sleep deprivation on daytime sleepiness in primary insomnia
E Stepanski1, F Zorick, T Roehrs
1Sleep Disorders and Research Center, Henry Ford Hospital, Detroit, MI 48202, USA. estepans@rush.edu
Study Objectives:
This study investigated changes in MSLT scores and recovery sleep following total sleep deprivation in subjects with insomnia as compared to normal sleepers.
Design:
Matched-groups design.
Setting:
A sleep disorders center in a large medical center.
Participants:
Ten individuals with psychophysiological insomnia and ten age- and sex-matched normal sleepers served as subjects.
Interventions:
Subjects underwent total sleep deprivation after baseline polysomnography and MSLT. A post-deprivation MSLT was obtained, as well as polysomnography on the recovery night and an MSLT after the recovery night.
Measurements And Results:
Both groups showed significant decreases in MSLT scores following total sleep deprivation, as compared to baseline. Both groups had significantly shorter scores on a nighttime MSLT compared to a daytime MSLT. The insomnia group also showed a significant increase in total sleep time on the recovery night compared to baseline.
Conclusions:
The MSLT is sensitive to changes in sleepiness associated with total sleep deprivation in individuals with primary insomnia.