Measuring Time Windows in Patients With Schizophrenia and Healthy Controls
- Conditions
- Schizophrenia
- Registration Number
- NCT00350805
- Lead Sponsor
- University Hospital, Strasbourg, France
- Brief Summary
Abnormalities in the ability to distinguish events in time may have a great impact on everyday life. The main objective of the study is to evaluate the magnitude of the temporal windows in schizophrenia, i.e. the time interval during which two events are perceived as synchronous. The investigators test the hypothesis that these temporal windows are enlarged, and check the relationship between this impairment and disorganization symptoms, in order to explore the link between this cognitive impairment and clinical symptoms. They explore also the neurobiological bases of the impairment by means of electroencephalogram (EEG) recordings. Event-related potentials (N50) will reveal whether or not the coding of the stimuli has the same temporal characteristics in patients and controls. The distribution and amplitude of oscillatory activities will be analyzed as a function of the synchronous or asynchronous response of the subject, thus allowing to explore the links between synchrony perception and neuronal synchronization phenomena.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 126
- Patients with schizophrenia (DSM-IV criteria)
- Healthy controls matched with patients on age, sex and education level
- Age between 18 and 50
- Informed consent signed
- No severe somatic illness
- No invalidating sensory disease
- No drug abuse, as defined by DSM-IV criteria
- No general anesthesia in the past 3 months
- No intake of drug affecting the CNS, except for patients
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (3)
Service de Psychiatrie Adulte & INSERM U841, Hôpital Albert Chenevier et Henri Mondor (AP-HP)
🇫🇷Créteil, France
Centre Hospitalier de Rouffach
🇫🇷Rouffach, France
INSERM U666 - Département de Psychiatrie - Hôpitaux Universitaires de Strasbourg
🇫🇷Strasbourg, France
Service de Psychiatrie Adulte & INSERM U841, Hôpital Albert Chenevier et Henri Mondor (AP-HP)🇫🇷Créteil, France