Scientists probe the Brain's 'Control Switch' in mental illness
NCT ID NCT01312649
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how the brain creates the feeling of being in control of our own actions. Researchers compared healthy volunteers with people who have schizophrenia or bipolar disorder, especially those who feel their actions are controlled by an outside force. The goal was to understand the mental processes behind this symptom, not to test a new treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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198 people
The number who actually took part.
- Started
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Apr 2011
- Finished
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Jul 2017
- Lead sponsor
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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
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18 to 55 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients with schizophrenia or bipolar disorders (criteria DSM IV) or healthy controls matched with patients on age, sex and education level * 18-55 years old Exclusion Criteria: * Past history affecting CNS * Invalidating sensory disorders * Intake of psychotropic drugs, except for patients * Intake of benzodiazepines
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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
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Pôle de Psychiatrie - Hôpital civil
Strasbourg, France
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Other studies related to the condition(s) this trial covers.
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