French Source-monitoring Task

Study Overview
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Brief Summary
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Source-monitoring is a cognitive process that refers to the ability to remember the source of an information. Source-monitoring processes are usually studied using experimental behavioral tasks. These tasks, which are very heterogeneous, are not all available in French and, for the most part, cannot be used in neuroimaging protocols. The aim of this project is to develop an experimental task which allows the measurement of source-monitoring performances, and which is adapted to neuroimaging protocols in a French-speaking population.

Detailed Description
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The study will include 2 steps: 1) validation of the verbal material necessary for the creation of the source-monitoring task and 2) testing the task.

Official Title
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Development of a Source-monitoring Task in French Adapted to Neuroimaging Protocols

Conditions
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Schizophrenia

Intervention / Treatment
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* Other: Questionnaire
* Other: Cognitive tests


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Men and Women aged between 18 and 45 Having given their written informed consent Native French speakers Normal or corrected-to-normal vision Education level greater than or equal to 8 (in years) For the healthy control group, no history of previous diagnosed psychiatric disorders (according to the criteria of the Diagnostic and Statistical Manual of Mental Disorders - DSM5), absence of first-degree relatives diagnosed with spectrum disorder schizophrenia and bipolar disorder (DSM). For the schizophrenia patients group, meeting the DSM5 criteria for schizophrenia. Exclusion Criteria: Do not consent to be included in the study History of hearing impairments People who cannot read Presence of neurological or somatic diseases Being under tutorship or curatorship

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: For step 1, two populations of participants: 30 healthy volunteers and 30 patients with schizophrenia will have to complete a verbal material scoring questionnaire. For step 2, two populations of participants: 30 healthy volunteers and 30 patients with schizophrenia will have to complete the source-monitoring task which will be created from step 1 as well as the task of reference (Brunelin et al., 2008).
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Healthy controls involved in step 1<br>30 healthy individuals will complete a verbal material scoring questionnaire | Other: Questionnaire<br>* Subjects will complete a verbal material scoring questionnaire<br>|
| Other: Patients with schizophrenia involved in step 1<br>30 patients with schizophrenia will complete a verbal material scoring questionnaire | Other: Questionnaire<br>* Subjects will complete a verbal material scoring questionnaire<br>|
| Other: Healthy controls involved in step 2<br>30 healthy individuals will complete the source-monitoring task which will be created from step 1 as well as the task of reference | Other: Cognitive tests<br>* Subjects will complete two source-monitoring tasks: the source-monitoring task which will be created from step 1 as well as the task of reference<br>|
| Other: Patients with schizophrenia involved in step 2<br>30 patients with schizophrenia will complete the source-monitoring task which will be created from step 1 as well as the task of reference | Other: Cognitive tests<br>* Subjects will complete two source-monitoring tasks: the source-monitoring task which will be created from step 1 as well as the task of reference<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Source-monitoring performances | Performances (calculated as the number of accurate source responses and the number of errors) obtained at the new source-monitoring task and at the source-monitoring task of reference (Brunelin et al., 2006). | one day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Sorce-monitoring