title: Method to study anhedonia in hospitalized psychiatric patients.
mesh_terms: D000328:Adult; D001714:Bipolar Disorder / Q000523:psychology; D003866:Depressive Disorder / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000523:psychology*; D010988:Play and Playthings; D012054:Reinforcement, Psychology; D012565:Schizophrenic Psychology; D012984:Software