title: Stereotyped behaviours in children with autism spectrum disorders and atypical development as measured by the BPI-01.
abstract: OBJECTIVE
  As repetitive behaviours in children with autism spectrum disorders (ASDs) can significantly interfere with one's daily functioning, continued research on these behaviours is needed.
  
  
  METHODS
  This study examined the occurrence of repetitive motor movements in toddlers (17-37 months) with ASD and atypical development and the relationship between stereotypies and sensory impairment.
  
  
  RESULTS
  Children with ASD (n = 13) exhibited significantly more repetitive behaviours than the non-ASD group (n = 12). Greater percentages of endorsement were evident for the ASD group on nearly all items of the Behaviour Problems Inventory-01 (BPI-01) Stereotypy subscale. More repetitive behaviours tended to co-occur with other stereotypies for the ASD group. A moderate correlation was found between stereotypy severity and sensory deficits.
  
  
  CONCLUSIONS
  These findings suggest that stereotyped behaviours can be identified at very young ages, negatively affect the behavioural presentation of those with ASDs and should be considered when developing treatment plans.
authors.affiliation: Department of Psychology, Louisiana State University , Baton Rouge, LA 70803 , USA.
authors.forename: Megan A
authors.initials: MA
authors.lastname: Hattier
authors.forename: Johnny L
authors.initials: JL
authors.lastname: Matson
authors.forename: Katherine
authors.initials: K
authors.lastname: Macmillan
authors.forename: Lindsey
authors.initials: L
authors.lastname: Williams
mesh_terms: D002657:Child Development; D002659:Child Development Disorders, Pervasive / Q000175:diagnosis / Q000453:epidemiology*; D002675:Child, Preschool; D015897:Comorbidity; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D010555:Personality Inventory; D012107:Research Design; D013239:Stereotyped Behavior; D019956:Stereotypic Movement Disorder / Q000175:diagnosis* / Q000453:epidemiology*