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Influence of social perception and social knowledge on cognitive and social functioning in early psychosis

  • Jean Addington (a1), Huma Saeedi (a2) and Donald Addington (a3)



Social cognition has been implicated in the relationship between cognition and social functioning.


To test the hypothesis that social cognition mediates the relationship between cognitive and social functioning.


This was a 1-year longitudinal cohort study comparing three groups: 50 people with first-episode psychosis, 53 people with multi-episode schizophrenia and 55 people without psychiatric disorder as controls. Participants were assessed on social perception, social knowledge, interpersonal problem-solving, cognition and social functioning.


There were significant associations between social cognition, cognition and social functioning in all three groups. Deficits in social cognition were stable over time. In the first two groups, controlling for social cognition reduced the relationship between cognitive and social functioning.


This study provides some evidence that social cognition mediates the relationship between cognitive and social functioning.


Corresponding author

Dr Jean Addington, PhD, Centre for Addiction and Mental Health, 250 College Street, Toronto, Ontario, M5TIR8, Canada. Tel: + 1 416 535 8501; fax: +1 416 979 6936; email:


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Declaration of interest


This study was funded through a grant to Jean Addington from the Canadian Institutes of Health Research.



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Influence of social perception and social knowledge on cognitive and social functioning in early psychosis

  • Jean Addington (a1), Huma Saeedi (a2) and Donald Addington (a3)
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