Profiles of stereotyped behaviour in people with combined sensory impairments and intellectual disabilities
Number of pages
SourceBritish Journal of Visual Impairment, 38, 2, (2020), pp. 168-183
Article / Letter to editor
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SW OZ BSI OLO
British Journal of Visual Impairment
SubjectLearning and Plasticity
Stereotyped and repetitive behaviours are characteristics of autism spectrum disorder (ASD) but also occur in individuals with combined intellectual and sensory disabilities. This article looked at the differences in type, frequency, and duration of stereotyped behaviours between individuals with and without ASD in this population. The study included 59 individuals with intellectual disabilities and sensory impairments. The presence of ASD was assessed using Observation of Autism in people with Sensory and Intellectual Disabilities (OASID). Separate from these assessments, video recordings were scored by observers naive to the ASD status of participants for stereotyped and repetitive behaviours. Stereotyped and repetitive behaviours were more prevalent in participants with ASD, though a large proportion of participants without ASD showed them too. Participants with ASD showed, on average, more frequent and in duration longer stereotyped and repetitive behaviours, especially self-injurious behaviours. No differences were found for vocal, motoric, and stereotyped behaviours with objects. The mean duration of each episode of stereotyped behaviour did not differ between groups. Cluster analysis revealed a distinct group of individuals without ASD who showed a high number of stereotyped behaviours.
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