NCT02629107

Brief Summary

Background: An electroencephalogram (EEG) measures the brain s electrical activity. EEG shows that the louder the sound needed to wake a person, the deeper the person s sleep. Researchers are using functional magnetic resonance imaging (fMRI) to study people during sleep so they can view brain activity in 3D. But they still need to correlate fMRI with sound thresholds, like the EEG. Objective: To measure brain activity during sleep using fMRI and EEG. Eligibility: Healthy people ages 18 34 who can sleep on their back for several hours. Design: Participants will be screened online about their sleep and general health. At a screening visit, participants will have: Physical exam Hearing exam MRI scan. A strong magnetic field and radio waves take pictures of the brain. Participants will lie down on a bed that slides into the scanner, which is shaped like a cylinder. Participants will wear an actigraph on their wrist that records their motor activity. Participants will follow a 2-week routine. This includes regular in-to-bed and out-of-bed times and limits on alcohol, caffeine, and nicotine. During the overnight visits, participants will have: Female subjects will have a urine pregnancy test. fMRI. A coil will be placed over the head. Participants will do tasks shown on a computer screen inside the scanner. EEG. Small electrodes on the scalp will record brain waves while sleeping or doing a task in the scanner. Participants will be asked to try to sleep while researchers collect fMRI and EEG data. Participants eyes will be monitored with a video camera. Headphones will deliver sounds to wake them up throughout the night. ...

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,378

participants targeted

Target at P75+ for all trials

Timeline
238mo left

Started Jan 2016

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress35%
Jan 2016Dec 2045

First Submitted

Initial submission to the registry

December 10, 2015

Completed
4 days until next milestone

First Posted

Study publicly available on registry

December 14, 2015

Completed
1 month until next milestone

Study Start

First participant enrolled

January 14, 2016

Completed
29 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2044

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2045

Last Updated

April 24, 2026

Status Verified

February 10, 2026

Enrollment Period

29 years

First QC Date

December 10, 2015

Last Update Submit

April 23, 2026

Conditions

Keywords

SleepFunctional Magnetic Resonance Imaging (fMRI)Electroencephalogram (EEG)Natural History

Outcome Measures

Primary Outcomes (1)

  • The data generated will be auditory arousal thresholds and the preceding brain activity and functional connectivity derived from fMRI

    Auditory arousal thresholds will allow us to define sleep depth behaviorally.

    This outcome will be measured during Overnight Visit 1 and 2.

Study Arms (1)

Healthy Volunteers

Healthy volunteers, age 18-34.

Eligibility Criteria

Age18 Years - 34 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Volunteers will be recruited from the community and NIH employees.

You may qualify if:

  • able to give informed consent;
  • in good general heath;
  • between the ages of 18 and 34 years;
  • able to sleep on your back for several hours (with breaks).

You may not qualify if:

  • have a medical condition like diabetes or uncontrolled hypertension;
  • have a psychiatric or neurologic condition like depression or stroke;
  • have ever had a seizure;
  • have a sleep disorder like insomnia or sleep apnea;
  • work night shifts;
  • have metal in your body such as pacemakers, metal prostheses, or aneurysm clips that would make MRI scanning unsafe;
  • are pregnant or nursing;
  • drink too much caffeine (6 or more cups of coffee per day or 10 or more cups of caffeinated soda per day);
  • use too much alcohol (15 or more alcoholic beverages per week for men and 8 or more alcoholic beverages per week for women);
  • use too much nicotine (nicotine use within 30 minutes of waking);
  • are afraid of enclosed spaces;
  • have known hearing problems;
  • regularly use a prescription or over-the-counter drug to help you sleep or stay awake;
  • are an employee, contractor, or volunteer of the Laboratory of Functional and Molecular Imaging in the National Institute of Neurological Disorders and Stroke.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

RECRUITING

Related Publications (1)

  • Moehlman TM, de Zwart JA, Chappel-Farley MG, Liu X, McClain IB, Chang C, Mandelkow H, Ozbay PS, Johnson NL, Bieber RE, Fernandez KA, King KA, Zalewski CK, Brewer CC, van Gelderen P, Duyn JH, Picchioni D. All-night functional magnetic resonance imaging sleep studies. J Neurosci Methods. 2019 Mar 15;316:83-98. doi: 10.1016/j.jneumeth.2018.09.019. Epub 2018 Sep 20.

Related Links

Study Officials

  • Jeffrey H Duyn, Ph.D.

    National Institute of Neurological Disorders and Stroke (NINDS)

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jeffrey H Duyn, Ph.D.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 10, 2015

First Posted

December 14, 2015

Study Start

January 14, 2016

Primary Completion (Estimated)

December 31, 2044

Study Completion (Estimated)

December 31, 2045

Last Updated

April 24, 2026

Record last verified: 2026-02-10

Data Sharing

IPD Sharing
Will not share

Locations