Deficits in social functioning are a core feature of autistic spectrum disorders (ASD), being linked to various cognitive and developmental factors, but there has been little attempt to draw on normative models of social cognition to understand social behaviour in ASD. The current study explored the utility of Crick and Dodge's (1994) information processing model to studying social cognition in ASD, and examined associations between social information processing patterns, theory of mind skills and social functioning. A matched-group design compared young people with Asperger syndrome with typically developing peers, using a social information processing interview previously designed for this purpose. The Asperger syndrome group showed significantly different patterns of information processing at the intent attribution, response generation and response evaluation stages of the information processing model. Theory of mind skills were found to be significantly associated with parental ratings of peer problems in the Asperger syndrome group but not with parental ratings of pro-social behaviour, with only limited evidence of an association between social information processing and measures of theory of mind and social functioning. Overall, the study supports the use of normative social information processing approaches to understanding social functioning in ASD.

Support was provided for the reliability and validity of the MAST and a relationship between attachment security, level of intellectual disability and CB. The results of the study and implications of attachment theory for service provision are discussed.

Background Self-injurious behaviour (SIB) is among the most serious problems faced by intellectual disability services. It is very difficult to treat and can become a chronic problem. Method Information on a number of variables was collected through a survey of service-users identified as displaying SIBs. Clinical opinion and a literature review guided the selection of potential predictors of continued SIB. Univariate statistical analyses were used to investigate associations between continued SIB and each of the variables identified. Variables shown to have a significant association with continued SIB were subjected to a multivariate analysis to isolate those variables that still predicted continued SIB once the influence of the others had been accounted for. Results Two factors, self-biting and verbal ability, were found to independently predict continued SIB. Conclusion The results have implications for intellectual disability services, in terms of the importance of multidisciplinary team working, training and guidelines for problem management.

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