Bipolar Disorders, Schizophrenia
Conditions
Brief summary
The investigators aim is to understand the cognitive mechanisms that contribute to the emergence of delusions of control (the belief that one's own actions or thoughts are controlled by an external force). These symptoms are mainly encountered in patients with schizophrenia, and the investigators will distinguish patients with schizophrenia with or without this symptom together with patients with bipolar disorder. Based on the investigators previous studies, this project will help to determine the role of two elementary mechanisms in the ability to feel in control of voluntary actions: (1) the processing of the sensory consequences of action, and (2) the ability to build mental representations for sequenced actions.
Interventions
BEHAVIORALExperimental psychology methods (computer tests)
Sponsors
University Hospital, Strasbourg, France
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes
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
Countries
France
Outcome results
None listed