Social cognitive impairments in first episode psychosis.
BACKGROUND
Social cognition is a complex phenomenon involving several distinct processes. Numerous studies have shown that individuals with schizophrenia are largely impaired on this domain of cognition. However, most have focused on a single aspect of social cognition, namely "theory of mind" and/or included patients with long standing illness.


OBJECTIVE
The main objective of the present study was to identify social cognition deficits in first episode of schizophrenia spectrum psychosis using a case control design and a comprehensive assessment that allowed the exploration of several dimensions of this phenomenon.


METHODS
36 patients with a first episode of psychosis and 25 healthy controls participated in this study.


METHODS
Measures of social cognition included the Hinting Task and the Four Factor Test of Social Intelligence.


RESULTS
Significant group differences were found on both tasks, but the Four Factor Test of Social Intelligence revealed a stronger group effect and the effects observed remained significant once IQ was covaried. Social cognition did not show any correlations with level of symptoms.


CONCLUSIONS
Social cognition deficits are present during the first episode of psychosis. These impairments do not seem to be a consequence of group differences in overall intellectual functioning and are likely to be state-independent.
Bertrand
Marie-Claude
MC
Department of Psychology, University of Montréal, 90 Vincent-d'Indy Avenue, Montreal, Quebec, Canada H2V 2S9. marie-claude.bertrand@douglasmcgill.ca
Sutton
Hazel
H
Achim
Amélie M
AM
Malla
Ashok K
AK
Lepage
Martin
M
D000328:Adult; D016022:Case-Control Studies; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D004644:Emotions; D005260:Female; D006801:Humans; D007361:Intelligence Tests / Q000706:statistics & numerical data; D033182:Intention; D008297:Male; D008960:Models, Psychological; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D010290:Parents; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D021641:Recognition, Psychology; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012923:Social Class; D012938:Social Perception; D011795:Surveys and Questionnaires; D013850:Thinking; D014705:Verbal Behavior