Investigation of Neurophysiological Markers, Possibly Specific of Two Subforms of Psychotic Disorders

"Compare two groups of markers relating respectively to psychomotricity and affectivity in two subforms of schizophrenia: periodic catatonia and hebephrenia in order to highlight a possible double dissociation:~1. abnormalities of markers related to affectivity in Hebephrenia (with preservation of these markers in periodic catatonia),~2. abnormalities of markers related to psychomotricity in periodic catatonia (with markers of these tests in Hebephrenia)."

compare the results of the schizophrenic patient group with healthy volunteers