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      Varieties of repetitive behavior in autism: comparisons to mental retardation.

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          Abstract

          Systematic study of abnormal repetitive behaviors in autism has been lacking despite the diagnostic significance of such behavior. The occurrence of specific topographies of repetitive behaviors as well as their severity was assessed in individuals with mental retardation with and without autism. The occurrence of each behavior category, except dyskinesias, was higher in the autism group and autistic subjects exhibited a significantly greater number of topographies of stereotypy and compulsions. Both groups had significant patterns of repetitive behavior co-occurrence. Autistic subjects had significantly greater severity ratings for compulsions, stereotypy, and self-injury. Repetitive behavior severity also predicted severity of autism. Although abnormal repetition is not specific to autism, an elevated pattern of occurrence and severity appears to characterize the disorder.

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          Author and article information

          Journal
          J Autism Dev Disord
          Journal of autism and developmental disorders
          Springer Science and Business Media LLC
          0162-3257
          0162-3257
          Jun 2000
          : 30
          : 3
          Affiliations
          [1 ] Human Development Research and Training Institute, Western Carolina Center, Morganton, North Carolina 28655, USA.
          Article
          10.1023/a:1005596502855
          11055459
          8899f7b9-cdc5-41a8-86d0-78ba28e0398b
          History

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