Related Experiment Videos
Can normal subjects be motivated to fall asleep faster?
Y Harrison1, V Bright, J A Horne
1Sleep Research Laboratory, Loughborough University, Leicestershire, UK.
Physiology & Behavior
|August 1, 1996
Summary
Motivation can improve sleep onset latency during the Multiple Sleep Latency Test (MSLT). This study found that a financial incentive reduced sleep latency, indicating increased sleepiness in participants.
Area of Science:
- Sleep Medicine
- Psychophysiology
- Chronobiology
Background:
- The Multiple Sleep Latency Test (MSLT) is a standard objective measure of daytime sleepiness.
- Sleep onset latency is influenced by sleep need and circadian phase.
Purpose of the Study:
- To investigate if motivation can accelerate sleep onset during MSLT.
- To determine the effect of financial incentives on objective sleepiness measures.
Main Methods:
- 14 healthy young adult females completed baseline MSLTs.
- Participants were assigned to control or incentive groups for a second MSLT day.
- The incentive group received financial motivation to sleep faster.
Main Results:
- The incentive group showed significantly reduced sleep onset latency in the afternoon trial.
- Participants in the incentive group reported a greater increase in subjective sleepiness.
- Motivation enhanced objective sleepiness indicators during the MSLT.
Conclusions:
- Increased motivation to sleep can reduce sleep onset latency.
- This effect is pronounced when combined with naturally higher afternoon sleepiness.
- Findings suggest a role for motivational factors in objective sleepiness assessments.