Self-injurious behaviour in Cornelia de Lange syndrome: 2. association with environmental events

Self-injurious behaviour in Cornelia de Lange syndrome: 2. association with environmental events

Sloneem J; Arron K; Hall S; Oliver C

Journal of Intellectual Disability Research

2009

intervention; symptoms; children; Rehabilitation; Neurology; Education & Educational Research; prevalence; Genetics & Heredity; behavioural phenotype; brachmann-delange syndrome; Cornelia de Lange syndrome; descriptive analysis; functional-analysis; individuals; Neurosciences &; phenomenology; phenotype; prader-willi syndrome; Psychiatry; self-injurious behaviour; social reinforcement; behavioral problems; De Lange syndrome; psychological intervention; environmental conditions; demand denial no contact; environment; self-injury

Background Self-injurious behaviour is commonly seen in Cornelia de Lange syndrome (CdLS). However, there has been limited research into the aetiology of self-injury in CdLS and whether environmental factors influence the behaviour. Methods We observed the self-injury of 27 individuals with CdLS and 17 participants who did not have CdLS matched for age, gender, level of intellectual disability and mobility. Descriptive analyses were used to determine the extent to which environmental events were associated with self-injury. Results Lag sequential analysis of the association between self-injurious behaviour and environmental events revealed no differences between the two groups in terms of either the number or degree of environmental associations. Conclusions The results suggest that the associations between the environment and self-injury in CdLS do not differ from those seen in the broader population of people with intellectual disability. By implication the social reinforcement hypothesis is equally applicable to both groups.

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