Brain zaps show promise for Parkinson's speech and thinking

NCT ID NCT07240272

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

Summary

This study tested whether a mild electrical current applied to the front of the brain (tACS) could improve speech and thinking in people with Parkinson's disease. 28 participants received either real or fake (sham) stimulation for 20 minutes daily over two weeks. Researchers measured changes in word recall, attention, and speech control to see if the real stimulation made a difference.

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)

What this could lead to

If it works, this could point toward a non-drug way to help with thinking and speaking difficulties in Parkinson's disease.

What could go wrong

This is a small, early-stage study with only 28 people. The effects may be small or not last long, and what works in a lab may not help in daily life.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Parkinson disease speech disorder

As listed by the trial registrant

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

Contacts and locations

Locations

  • Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University

    Guangzhou, Guangdong, 510000, China