Brain zapping study aims to sharpen memory and focus across multiple disorders
NCT ID NCT04296604
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study is testing whether a non-invasive brain stimulation technique called tDCS can improve executive functions—like working memory, attention, and decision-making—in people with conditions such as traumatic brain injury, depression, bipolar disorder, schizophrenia, ADHD, borderline personality disorder, and substance use disorders. Researchers will enroll 600 participants and measure changes in cognitive tasks after stimulation. The goal is to understand if tDCS can help these groups, not to provide a treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- transcranial direct current stimulation (tDCS) device
- What this could lead to
- If successful, this could point toward a non-invasive brain stimulation method to help improve focus and memory in people with various mental health and brain conditions.
- What could go wrong
- This is an early-stage study exploring how tDCS affects brain function, not a treatment trial. Results may not lead to a proven therapy, and individual responses can vary.
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
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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
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About 600 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2014
- Expected to finish
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Apr 2026
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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 1. Male and female outpatients 18-65 years of age 2. A diagnosis of traumatic brain injury, major depressive disorder, bipolar disorder, schizophrenia, attention deficit hyperactivity disorder, borderline personality disorder and substance use disorders meeting the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria. Exclusion Criteria 1. Contraindication to tDCS: history or epilepsy, metallic implants in the head and neck, brain stimulators, vagus nerve stimulators, shunts, pacemakers, pregnancy. 2. Active substance dependence (except for tobacco and cannabis). 3. Pregnant or nursing females. 4. Inability to participate in testing procedures. 5. Additional exclusion criteria for healthy controls: 1. Diagnosis of psychiatric of neurological disorder 2. Ongoing treatment with any psychotropic medications.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02129, United States
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- Can brain activity reveal why some people with depression lose motivation and pleasure?
- Peer mentors may help young adults stick with addiction treatment
- Machine learning may forecast brain decline after head injury