- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03323814
Enhancing Sleep Slow Waves Using External Stimuli
Optimizing Peripheral Sensory Stimulation to Induce Sleep Slow Waves
Study Overview
Status
Intervention / Treatment
Detailed Description
This is a single-site,unblinded study at the University of Wisconsin to determine the effectiveness of various stimulation modalities and parameters to maximize effectiveness for increasing slow waves during both nocturnal sleep and during daytime naps The ongoing study is a necessary exploratory step towards the future development of non-pharmacological means to improve sleep by increasing SWA.
Several different stimulation modalities will be examined including: auditory (soft tones delivered to the subject through earphones); somatosensory (brief and painless electrical pulses delivered to the median nerve through electrodes placed at the wrist); vestibular (brief and painless electrical pulses delivered through electrodes placed near the mastoids); olfactory (light puffs of air, with or without mild odorants, delivered to the nostril(s) and/or mouth; visual (brief light flashes via strobe light). The amplitude (stimulus intensity) and frequency (number of stimuli per unit time) of stimulation presentation will be systematically varied to identify the ideal parameters for slow wave induction during sleep. For each stimulation modality and each subject, we will determine the range of stimulus intensity from the minimum level sufficient for perceptual response (e.g. - the lowest volume setting for an auditory stimulus that the subject can hear) to a stimulus level that the subject deems comfortable to still allow sleep. This is particularly important, as sleep maintenance during these experiments requires stimulus intensity low enough to avoid awakening the subject. Additionally, based on previous results from our laboratory, the effective range of stimulus intensity will vary substantially between subjects - both the identified range during wakefulness, as well as the range that induces slow waves but avoids waking during the sleep recording. Given this response variability, during the sleep recordings stimulus intensity will be adjusted, starting with the range determined in waking, to find the optimal intensity to inducing sleep slow waves (based on EEG response patterns), and avoiding subject awakening.
Study Type
Enrollment (Actual)
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:Able to provide written informed consent prior to admission.
- Able to understand and speak English;
- Left or right-handed subjects may be included.
- Age of ≥18 years and ≤ 75;
- Able to understand and speak English;
- Left or right-handed subjects may be included.
- Age of ≥18 years and ≤ 75;
Exclusion Criteria:
- Subjects taking medications that could affect sleep patterns (based on self-report and review with a study clinician).
- Subjects who have had travel in the last 2 weeks or who intend to travel during the 4 experimental weeks (for at-home subjects) with time zone shifts >1h;
- The investigator anticipates that the subject will be unable to comply with the protocol.
- Individuals who self-report a current severe or chronic medical condition or sleep disorder that may affect sleep patterns (based on self-report and review with a study clinician).
- Individuals who self-report a history of recurrent seizures or epilepsy or family history of hereditary epilepsy or have a history of medical conditions that could increase the chance of seizures (e.g. stroke, aneurysm, brain surgery, structural brain lesion).
- Subjects who do report not being consistent in their daily use of alcohol, caffeine, or nicotine.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
short-sleepers
subset of participants will be recruited who report less than typical work/ weekday sleep in order to examine whether enhancing sleep with stimulation will reduce the amount of extra sleep subjects usually get on the weekends.
|
employing sensory stimulation to enhance slow waves
Other Names:
|
shift-workers
An additional subset of participants will be recruited who work evening shifts to see if enhanced sleep can counteract some of the effects of schedule shifting.
|
employing sensory stimulation to enhance slow waves
Other Names:
|
normal-sleepers
The first cohort will be used to optimize the the type and duration of sensory stimuli that will optimally enhance slow-waves.
|
employing sensory stimulation to enhance slow waves
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Enhancing slow-wave sleep
Time Frame: 10 years
|
increase slow-wave activity during non-rapid eye movement sleep
|
10 years
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Guilio Tononi, MD, PhD, University of Wisconsin, Madison
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 2015-0337 (H-2009-0052)
- A538900 (Other Identifier: UW Madison)
- SMPH\PSYCHIATRY\PSYCHIATRY (Other Identifier: UW Madison)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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