Could flickering lights and tones boost brain function in Alzheimer's?

NCT ID NCT05206305

Ongoing Symptom relief Sponsor: University of Tennessee Medical Center Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a headset that delivers flashing lights and clicking sounds at 40 times per second (40 Hz) for one hour daily. Researchers want to see if this stimulation improves visual processing and thinking in 20 people aged 60+ with Alzheimer's disease. Participants will have brain wave tests and thinking assessments before and after 8 weeks of use.

What this could mean

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

Active substance: GammaSense Stimulation device (non-invasive light and sound stimulation at 40 Hz)
What this could lead to: If it works, this could point toward a drug-free way to ease cognitive symptoms in Alzheimer's disease.
What could go wrong: This is a very small early study with only 20 people, so results may not apply widely. The device is not a cure and may have no lasting benefit.

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.

Alzheimer disease

As listed by the trial registrant

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

ALZHEIMER DISEASE

Contacts and locations

Locations

University of Tennessee Medical Center

Knoxville, Tennessee, 37920, United States

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Other studies related to the condition(s) this trial covers.