Purpose

The goal of this clinical trial is to find out whether stimulating the brain with electrical current during naps can increase certain kinds of brain activity that happen during sleep and lead to improvements in mental fatigue. Participants will attend 2 study visits, each of which may last up to 4-5 hours. During these visits, participants will wear a high density electroencephalography (hdEEG) cap and take a nap.

Conditions

Eligibility

Eligible Ages
Between 18 Years and 75 Years
Eligible Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Adults aged 18-75 of any gender identity - Self-reported non-restorative sleep, as measured by a REST-Q score - English-speaking (able to provide consent and complete questionnaires) - Capable of taking daytime naps - US Citizen

Exclusion Criteria

  • Any current or history of neurological disorders or acquired neurological disease (e.g. stroke, traumatic brain injury), including intracranial lesions - History of inpatient psychiatric hospitalization - History of head trauma resulting in prolonged loss of consciousness; or a history of >3 grade I concussions - Current history of poorly controlled headaches including intractable or poorly controlled migraines • Any systemic illness or unstable medical condition that may cause a medical emergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia, asthma, etc.) - History of seizures, diagnosis of epilepsy, history of abnormal (epileptiform) EEG, or family history of treatment resistant epilepsy except for a single seizure of benign etiology (e.g. febrile seizures) in the judgment of a board-certified neurologist - Possible pregnancy or plan to become pregnant in the next 6 months - Any metal in the head - Any medical devices or implants (i.e. cardiac pacemaker, medication infusion pump, cochlear implant, vagal nerve stimulator) - Dental implants - Permanent retainers - Any hair braid, dreadlocks, hair pieces, or extensions which cannot be taken out before the study sessions - Any head coverings or headdress that participant feels uncomfortable removing for the purposes of study sessions - Any medication that may alter seizure threshold taken during the study i.e., ADHD stimulants (Adderall, amphetamine); Tricyclic/atypical antidepressants (amitriptyline, doxepine, imipramine, maprotiline, nortriptyline, bupropion); Antipsychotics (chlorpromazine, clozapine), Bronchodilators (theophylline, aminophylline); Antibiotics (fluoroquinolones, imipenem, penicillin, cephalosporins, metronidazole, isoniazid); Antivirals (valacyclovir, ritonavir); OTC antihistamines (diphenhydramine, Benadryl) - Claustrophobia (a fear of small or closed places) - Back problems that would prevent lying flat for up to two hours - Regular night-shift work (second or third shift)

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Basic Science
Masking
Single (Participant)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Stimulation followed by no stimulation
Participants will receive stimulation during their nap at the first visit, and no stimulation during their nap at the second visit.
  • Device: Transcranial electrical stimulation with Temporal Interference (TES-TI)
    TES-TI uses specific electrode arrangement patterns to selectively stimulate the brain. Participants will wear an hdEEG (high density electroencephalography) cap which will allow intermittent periods of stimulation from TES-TI.
Experimental
No stimulation followed by stimulation
Participants will not receive stimulation during their nap at the first visit, and receive stimulation during their nap at the second visit.
  • Device: Transcranial electrical stimulation with Temporal Interference (TES-TI)
    TES-TI uses specific electrode arrangement patterns to selectively stimulate the brain. Participants will wear an hdEEG (high density electroencephalography) cap which will allow intermittent periods of stimulation from TES-TI.

Recruiting Locations

University of Wisconsin - Madison
Madison, Wisconsin 53705
Contact:
Sean Prahl
262-395-8675
spprahl@wisc.edu

More Details

Status
Recruiting
Sponsor
University of Wisconsin, Madison

Study Contact

Sean Prahl
262-395-8675
spprahl@wisc.edu

Detailed Description

This project aims to use transcranial electrical stimulation with temporal interference (TES-TI) to enhance the production of sleep slow waves, boosting the restorative power of sleep and mitigating cognitive impairment (mental fatigue) and its underlying cause (brain fatigue).

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.