Scientists probe Brain's feedback system with mild zaps
NCT ID NCT02816632
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.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
76 people
The number who actually took part.
- Started
-
Mar 2017
- Finished
-
Sep 2019
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 45 years
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Benefit of social health security * Normal or corrected-to-normal vision Exclusion Criteria: * Anamnesis of neurological of psychiatric illness * Pregnancy or breastfeeding * Administrative measures restricting legal rights * Epilepsy (including familiarity), migraines, chronic headaches * presence of pacemakers, cochlear implants, surgical clips, or any metallic component fixed in participants' body * Current treatment with psychotropic drugs * Alcohol assumption during the last 24 hours * Sleep deprivation * Recent participation to other brain stimulation studies (\< 1 week)
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Healthy volunteers are added.
Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Unité de Neuro-Ophtalmologie Hôpital Neurologique - HOSPICES CIVILS DE LYON
Bron, 69500, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Scientists probe the nerve highways behind strength gains
- New syphilis test kits put to the test with donated blood
- Can a copy of a blockbuster arthritis drug match the original? scientists test it in healthy people
- Novo nordisk tests Brand-New molecule in humans for the first time
- New sedative candidate goes Head-to-Head with propofol in early human test
- Can a Room-Temperature dairy drink build muscle?