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Brain zaps may boost your skills – but Don't get excited yet

NCT ID NCT06995560

Knowledge-focused Sponsor: Massachusetts General Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a gentle electrical current applied to the scalp (transcranial electrical stimulation) could help healthy adults perform a complex computer task faster and more accurately. Forty-four volunteers with advanced degrees completed a track-and-capture task while receiving either real or fake stimulation. The goal was to see if the brain zaps improved performance during and up to 48 hours after the session.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
transcranial electrical stimulation (tES) via electrodes on the scalp
What this could lead to
If it works, this could point toward ways to boost focus or skill learning in healthy people, such as pilots or surgeons.
What could go wrong
This is a small, early-stage study in healthy volunteers, not patients. The effects may be small or not last, and the stimulation can cause tingling or mild discomfort.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

44 people

The number who actually took part.

Started

Dec 2022

Finished

Oct 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

25 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 25 to 55 years * Master's or Doctorate degree, or equivalent relevant experience * No history of head injury or neurological or psychiatric disorders * No history of cardiac disease * No metal implants in the head * No implanted electronic devices * Not taking medication affecting neural or cardiovascular function * Able to provide written, dated informed consent Exclusion Criteria: * Smoking within the past year * Current illegal drug use * Alcohol abuse * Pregnancy (confirmed by urine test) * Participation in another brain stimulation protocol within the past month

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Conditions

The condition(s) this trial relates to.

cognitive disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Brain stimulation Cognition Healthy Neurophysiology Psychomotor performance Transcranial direct current stimulation (TDCS)

Contacts and locations

Locations

  • Massachusetts General Hospital Research Institute

    Charlestown, Massachusetts, 02129, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.