The negative symptoms of schizophrenia. They are pervasive but sometimes invisible--and especially difficult to treat.
D001526:Behavioral Symptoms; D001921:Brain / Q000503:physiopathology; D015928:Cognitive Behavioral Therapy; D006801:Humans; D012559:Schizophrenia / Q000503:physiopathology / Q000628:therapy*; D012565:Schizophrenic Psychology; D009626:Terminology as Topic