MedTrace Logo

Neurophysiologic Correlates of Hypersomnia

NCT01719315 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 76

Last updated 2018-12-24

No results posted yet for this study

Summary

The goal of this project is to examine the neurophysiology of hypersomnia during sleep and wakefulness, to identify biomarkers for excessive sleepiness in neuropsychiatric disorders, and pilot acoustical slow wave induction during sleep in patients with hypersomnolence, to determine if this decreases daytime sleepiness in these patients. The primary study hypotheses are that individuals with hypersomnolence will have reduced slow wave activity (SWA) during sleep and increased waking theta/alpha activity during wake in specific brain regions. A secondary hypothesis is that acoustical slow wave induction in hypersomnolent patients will increase SWA during sleep, reduce theta/alpha activity during wake, and improve subjective sleepiness.

Conditions

Interventions

OTHER

Acoustical slow wave induction

Brief tones (50 millisecond duration) at a frequency of 0.8 and 2 Hz, a rate that approximates the natural cellular oscillations of cortical neurons during sleep, will be played in blocks of 15-20 during non-rapid eye movement (NREM) sleep. Blocks of active acoustic slow wave induction will be followed by blocks of equal duration without induction, in order to make comparisons between stimulation periods (ON) and no stimulation periods (OFF). Tone intensity will be manually adjusted so as to be above an individual participant's auditory threshold during waking, but still quiet enough as not to awaken the subject from sleep. Sham slow wave induction will consist of auditory tones played prior to sleep, and during sleep of insufficient timing and intensity to alter slow wave activity.

Sponsors & Collaborators

  • University of Wisconsin, Madison

    lead OTHER

Principal Investigators

  • David T Plante · University of Wisconsin, Madison

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2012-11-30
Primary Completion
2018-06-30
Completion
2018-06-30

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01719315 on ClinicalTrials.gov