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Brain scans reveal the 'Check' button in healthy people

NCT ID NCT03483233

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

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Summary

This study looked at how healthy adults' brains handle the decision to double-check their work. Using brain scans (fMRI and EEG), researchers aimed to pinpoint which brain areas are active during checking tasks. The goal is to better understand compulsive checking in conditions like OCD, but this study itself did not test any treatment.

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

51 people

The number who actually took part.

Started

Nov 2018

Finished

Jan 2020

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

20 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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * adults age range 20-45 years * being able to provide a written consent form * having a social insurance * have a normal vision (with or without corrections) * Right-handed Exclusion Criteria: * Subjects with MRI contraindications (e.g. pacemaker, claustrophobia, metal in the body, etc…). * Pregnant subjects * Subjects with neurological history * Subjects must be willing to be advise in case of discovery of brain abnormality.

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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

  • Inserm U1208

    Bron, France

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