Brain wave stimulation shows promise for memory boost

NCT ID NCT04680481

Completed Knowledge-focused Sponsor: University of Minnesota Source: ClinicalTrials.gov ↗

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

Summary

This study tested whether a gentle electrical current applied to the scalp can improve working memory in 9 adults with epilepsy who already had brain electrodes implanted. The stimulation targeted frontal and parietal brain areas at different frequencies. Researchers measured changes in brain activity and memory performance during the stimulation.

What this could mean

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

Active substance: transcranial alternating current stimulation (tACS) device
What this could lead to: If it works, this could point toward a non-invasive way to boost memory in people with brain disorders.
What could go wrong: This is a very small, early feasibility study with only 9 participants. It may not show clear benefits or apply to the general population.

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

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Conditions

The condition(s) this trial relates to.

epilepsy

As listed by the trial registrant

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

WORKING MEMORY

Contacts and locations

Locations

University of Minnesota

Minneapolis, Minnesota, 55455, United States

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