Visual Information Processing in Schizophrenia Patients With Visual Hallucinations

Inclusion Criteria

• •All Groups:
• •Age between 18 and 55 years
• •Affiliation to or benefiting from a social security
• •Visual acuity normal or corrected to normal
• •Person who received and understood the complete information about the organization of the research and gave written and free informed consent before participating in the study
• •Group of patients with schizophrenia with visual hallucination (HV) with or without auditory hallucination (HA) (HV group):
• •Schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders IV criteria
• •Presence of a hallucinatory visual symptomatology (HV) in the history of the disease measured by the Psychosensory hallucination scale (PSAS).
• •The presence of a hallucinatory symptomatology in auditory mode (HA) in addition to the HV is not a criterion of non-inclusion.
• •Group of patients with schizophrenia either with auditory hallucination (HA) but without visual hallucination (HV) or no hallucination, auditory or visual (NH) (HA / NH group)
• •Schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders IV criteria
• •Presence of a hallucinatory symptomatology in auditory mode (HA) in the history of the disease measured by the PSAS or absence of any hallucinatory manifestations in the history of the disease
• •Absence of visual hallucinatory symptomatology (HV) in the history of the disease as measured by PSAS