Scientists probe Brain's feedback system with mild zaps

NCT ID NCT02816632

Completed Knowledge-focused Sponsor: Hospices Civils de Lyon Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This completed study in 76 healthy volunteers used brain scans (fMRI) and mild electrical stimulation (GVS) to explore how different types of feedback—like social or monetary cues—influence decision-making. The goal was to map the brain networks involved, with the hope of applying this knowledge to help people with conditions that disrupt feedback processing. No treatment was tested; this was purely a knowledge-gathering exercise.

What this could mean

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

Active substance: Galvanic Vestibular Stimulation (GVS)
What this could lead to: If successful, this research could reveal how the brain processes different types of feedback, potentially guiding future treatments for conditions where this process is impaired.
What could go wrong: This is a small, early-stage study in healthy volunteers, not a treatment trial. The findings may not directly translate to clinical populations, and the brain stimulation technique is experimental.

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

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As listed by the trial registrant

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

HEALTHY VOLUNTEERS

Contacts and locations

Locations

Unité de Neuro-Ophtalmologie Hôpital Neurologique - HOSPICES CIVILS DE LYON

Bron, 69500, France

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