Ultrasound zaps brain to reveal hidden signals
NCT ID NCT05303428
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether low-intensity focused ultrasound can temporarily alter brain activity in 80 healthy adults. Participants receive MRI and CT scans, then ultrasound to the brain, followed by fMRI to measure changes in thinking and resting brain signals. The goal is to understand how noninvasive brain stimulation affects cognition, which may help future treatments for addiction, pain, and mental health.
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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 80 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Oct 2026
An estimate. Start dates often move.
- Expected to finish
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Apr 2028
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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Healthy volunteers, all ethnicities, who understand and speak English. Exclusion Criteria: 1. Claustrophobia (scanning environment may be uncomfortable). 2. Contraindications to MRI: including pacemaker, aneurysm clips, neurostimulators, cochlear implants, metal in eyes, steel worker, or other implants. 3. Contraindications to CT: pregnancy 4. Active medical disorder or treatment with potential CNS effects (e.g. Alzheimer's) 5. History of neurologic disorder. (e.g. Parkinson's, Epilepsy, or Essential Tremor) 6. History of head injury resulting in loss of consciousness for \>10 minutes. 7. History of alcohol or drug dependence (through self-report).
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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
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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
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