title: Investigating affective prosody in psychosis: a study using the Comprehensive Affective Testing System.
abstract: Affective prosody is substantially impaired in schizophrenia, yet little is known about affective prosody in bipolar disorder (BD). The aim of this study was to examine affective prosody performance in schizophrenia, schizoaffective disorder and BD on a newly released standardised assessment to further our understanding of BD performance. Fifty-four schizophrenia, 11 schizoaffective and 43 BD patients were compared with 112 healthy controls (HC) on four affective prosody subtests of the Comprehensive Affective Testing System (CATS). Schizophrenia patients showed a 10% reduction in accuracy on two subtests compared to HC. BD showed a trend for performance intermediary to schizophrenia and HC; and schizoaffective patients performed more like HC on these four affective prosody measures. Severity of current auditory hallucination, across all patients, was related to task performance on three of the measures. These data confirm that schizophrenia and BD have reduced affective prosody performance, with deficits in BD being less pronounced than schizophrenia. The schizoaffective results in this study should be interpreted with caution due to small sample size.
authors.affiliation: Brain and Psychological Sciences Research Centre, Faculty of Life and Social Sciences, Swinburne University, Melbourne, Australia; Cognitive Neuropsychology Laboratory, Monash Alfred Psychiatry research centre (MAPrc), The Alfred Hospital, Melbourne, Australia; The University of Melbourne, Parkville, Victoria 3010, Australia; Mental Health Research Institute of Victoria, Victoria 3053, Australia. Electronic address: srossell@srossell.com.
authors.forename: Susan L
authors.initials: SL
authors.lastname: Rossell
authors.forename: Tamsyn E
authors.initials: TE
authors.lastname: Van Rheenen
authors.forename: Christopher
authors.initials: C
authors.lastname: Groot
authors.forename: Andrea
authors.initials: A
authors.lastname: Gogos
authors.forename: Alison
authors.initials: A
authors.lastname: O'Regan
authors.forename: Nicole R
authors.initials: NR
authors.lastname: Joshua
mesh_terms: D000328:Adult; D000341:Affective Disorders, Psychotic / Q000523:psychology*; D001714:Bipolar Disorder / Q000523:psychology; D016022:Case-Control Studies; D004192:Discrimination, Psychological; D005260:Female; D006212:Hallucinations; D006801:Humans; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011618:Psychotic Disorders / Q000175:diagnosis / Q000523:psychology*; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology
keywords: Affective prosody; Bipolar disorder; Language and communication; Schizophrenia