NEURO-EGO Study Stage 2: Brain Stimulation for Meditation

This study is exploring if special brain stimulation, called Transcranial Electrical Stimulation (TES) or Transcranial Electrical Stimulation with Temporal Interference (TES-TI), can help healthy adults achieve a meditative state more easily. Researchers want to see if this brain stimulation can help you distance yourself from your thoughts and feelings, similar to how meditation can improve your openness and overall well-being. To join, you should be a healthy adult between 18 and 80 years old, speak English, and not have much experience with meditation. The study will measure how well the brain stimulation helps you disengage from your thoughts and feelings, and also look at changes in your brain activity. The study plans to enroll 48 participants, but its current status is unclear.

Study design
This interventional study plans to enroll 48 healthy adults. It is designed to evaluate the effectiveness of two types of non-invasive brain stimulation.
What's involved
You will complete questionnaires, perform a guided meditation task, wear a special cap (hdEEG) that measures brain activity, and undergo brain stimulation. These activities will occur at baseline, week 1, week 2, week 3, and a final visit at week 7.
Compensation
Not stated in the trial record.
Follow-up
Your progress will be followed for seven weeks, with measurements taken at baseline, week 1, week 2, week 3, and a final visit at week 7.

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NCT06601699

Neuromodulation-assisted Ego-disengagement: The NEURO-EGO Study Stage 2

Recruiting
NAAges 18–80InterventionalBasic science
University of Wisconsin, Madison
~48 participants
Updated 2026-06-18 on ClinicalTrials.gov
What's tested:Transcranial electrical stimulation (TES)Transcranial electrical stimulation with temporal interference (TES-TI)

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Ego-Disengagement scale
Measured over baseline, week 1, week 2, week 3, week 7
+2 more outcomes measured
Healthy
1 sites across 1 states
Wisconsin1
  • Melanie Boly, MD, PhD · PRINCIPAL_INVESTIGATOR · University of Wisconsin, Madison

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Eligibility criteria

Inclusion

Adults, ages 18 to 80 of any identified gender
Medically healthy
English-speaking (able to provide consent and complete questionnaires)
Healthy adults who are meditation-naïve
Citizen or legal resident

Exclusion

Any current or past history of neurological disorders or acquired neurological disease (e.g. stroke, traumatic brain injury), including intracranial lesions
Any current or past history of bipolar disorder and/or hypomania
Any current or past history of psychosis
History of head trauma resulting in prolonged loss of consciousness; or a history of great than 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 fainting spells of unknown or undetermined etiology that might constitute seizures
History of seizures, diagnosis of epilepsy, history of abnormal (epileptiform) EEG, or family history of treatment resistant epilepsy with the exception of a single seizure of benign etiology (e.g. febrile seizures) in the judgment of a board-certified neurologist
Possible pregnancy. All female participants of child-bearing age are required to have a pregnancy test
Any metal in the brain, skull or head
Any contraindications to MRI
Any medical devices or implants (i.e. cardiac pacemaker, medication infusion pump, cochlear implant, vagal nerve stimulator, dental implants (this includes a permanent retainer)) unless otherwise approved by the responsible MD
Substance abuse or dependence within the past six months
Any medication that may alter seizure threshold i.e., ADHD stimulants (Adderall, amphetamine); Tricyclic/atypical antidepressants (Amitriptyline, Dioxepine, Imipramine Maprotiline, Nortriptyline, Bupropion); Antipsychotics (Chlorpromazine, Clozapine), Bronchodilators (theophylline, aminophylline); Antibiotics (fluoroquinolones, imipenem, penicillin, cephalosporins, metronidazole, isoniazid); Antiviral (Valacyclovir, Ritonavir); OTC (Diphenhydramine)
Claustrophobia (a fear of small or closed places)
Back problems that would prevent lying flat for up to two hours
Having experienced a traumatic event that caused lasting distress or required treatment
Motion sickness
Any hair braid, dreadlocks, hair pieces, or extensions which cannot be taken out or adjusted to permit comfortable and comprehensive participation before the MRI scans and/or stimulation sessions
Any head coverings or headdress that participant feels uncomfortable removing for the purposes of the MRI scans and/or stimulation session
  • Ego-Disengagement scalebaseline, week 1, week 2, week 3, week 7

    Ego-disengagement will be measured using the bell task. This meditation task consists of five "bell trials." During each trial, subjects will be asked to focus on the sound of a bell until it fades, then on the space left empty by the faded sound, resting free from thoughts as long as possible (meditation condition). Afterward, subjects will respond to a few questions designed to assess their level of ego-disengagement during the trials. This is a five-question form that asks subjects to rate, on a scale from 0-4, the degree to which they were perceiving something, imagining something, thinking about themselves, or thinking about something during the previous bell trial and then to rate the valence of their emotional state during the trial from 1 (highly negative) to 6 (highly positive).

  • Cortical activity - change in gamma band powerweek 1, week 2, week 3, final visit (week 7)

    Gamma band power will be measured with hdEEG during stimulation. A decrease indicates greater level of ego disengagement.

  • Cortical activity - change in alpha band powerweek 1, week 2, week 3, final visit (week 7)

    Alpha band power will be measured with hdEEG during stimulation. An increase indicates greater level of ego disengagement.