title: [Clinical study on schizophrenics with negative variations].
mesh_terms: D000293:Adolescent; D000328:Adult; D003265:Contingent Negative Variation; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012559:Schizophrenia / Q000503:physiopathology* / Q000628:therapy