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Magnetic pulses reveal how the brain rewires its visual centers

NCT ID NCT05853939

Knowledge-focused Sponsor: University of California, San Francisco 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study at the University of California, San Francisco tested whether repetitive transcranial magnetic stimulation (rTMS) can temporarily change how the brain processes visual information. 106 healthy adults received targeted magnetic pulses to the visual cortex while their brain activity was measured with EEG. The goal was to understand how attention and stimulation frequency affect brain plasticity, which could inform future treatments for vision problems.

What this could mean

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

Active substance
repetitive transcranial magnetic stimulation (rTMS)
What this could lead to
If successful, this could help researchers understand how to measure and induce brain plasticity in the visual system, potentially guiding future treatments for vision disorders.
What could go wrong
This is a small, early-stage study in healthy adults, not a treatment trial. Results may not apply to people with vision problems or other conditions.

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

106 people

The number who actually took part.

Started

Jul 2023

Finished

Jun 2026

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

18 to 65 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: * Men and women, ages 18 to 65 * Must comprehend English well to ensure adequate comprehension of the EEG and TMS instructions, and of clinical scales * Left- or Right-handed * No current or history of neurological disorders * No seizure disorder or risk of seizures Exclusion Criteria: * Those with a contraindication for MRIs (e.g. implanted metal) * Any unstable medical condition * History of head trauma with loss of consciousness * History of seizures * Neurological or uncontrolled medical disease * Active substance abuse * Diagnosis of psychotic or bipolar disorder * Currently taking medications that substantially reduce seizure threshold (e.g., bupropion, olanzapine, chlorpromazine, lithium) * Currently pregnant or breastfeeding

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As listed by the trial registrant

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

Repetitive transcranial magnetic stimulation Visual attention Visual cortical plasticity

Contacts and locations

Locations

  • Stanford University

    Stanford, California, 94306, United States

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