Zapping the brain during sleep may tweak rhythms tied to schizophrenia

NCT ID NCT07680114

First seen Jul 02, 2026 · Last updated Aug 11, 2026 · Updated 4 times

Summary

This study tests whether a non-invasive electrical brain stimulation technique called TES-TI can temporarily alter sleep spindles—brain rhythms often reduced in schizophrenia. Researchers will apply the stimulation during sleep in 20 people (half with schizophrenia spectrum disorders, half healthy controls) over two overnight lab visits. The goal is to see if targeting the thalamus can boost spindle activity, which may help understand the brain's role in the condition.

What this could mean

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

Active substance
transcranial electrical stimulation with temporal interference (TES-TI)
What this could lead to
If this works, it could point toward a new way to improve sleep-related brain activity in people with schizophrenia, potentially aiding symptom management.
What could go wrong
This is a very small, early feasibility study with only 20 participants. It tests a temporary effect during one night, so any changes may not last or translate into real-world benefits.

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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.

Contacts and locations

Locations

  • University of Wisconsin

    RECRUITING

    Madison, Wisconsin, 53719, United States

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