Related Experiment Video
Updated: Jun 10, 2026

A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
Published on: September 22, 2020
The effect of vestibular stimulation in a four-hour sleep phase advance model of transient insomnia
Andrew D Krystal1, Gary K Zammit, James K Wyatt
1Duke University School of Medicine, Durham, NC 27710, USA. kryst001@mc.duke.edu
Study Objectives:
To determine if vestibular stimulation is an effective therapy for transient insomnia in a sleep phase advance model.
Design:
Multi-site, double-blind, randomized, parallel-group, sham-controlled trial
Setting:
This study was carried out at 6 sites in the United States.
Participants:
198 healthy normal sleepers.
Interventions:
Bilateral electrical stimulation of the vestibular apparatus of the inner ear via electrodes on the skin of the mastoid process at a frequency of 0.5 Hz vs. sham stimulation.
Results:
We did not find a significant effect of treatment on our primary outcome variable, latency to persistent sleep onset (LPS). However, our planned analysis identified that the mean latency to sleep onset on the multiple sleep latency test was a significant covariate. This led us to carry out post hoc analyses, which showed a significant effect of treatment on LPS in those subjects with a mean MSLT sleep onset latency > or = 14 minutes.
Conclusions:
Vestibular stimulation did not have a therapeutic effect in a model of transient insomnia in the overall population studied. However, this study provides preliminary evidence that vestibular stimulation may shorten sleep onset latency compared with sham therapy in the subset of subjects with mean MSLT sleep onset latency > or = 14 minutes.
Related Concept Videos
Management of Insomnia
Stages of Sleep
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
Sedatives and Hypnotics Drugs: Miscellaneous Agents
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Substance Use Disorders Affecting Sleep
Understanding the concepts of physical dependence,...
REM Sleep Behavior Disorder
RBD is significantly associated with...

