Shattuck, P. T., Durkin, M., Maenner, M., Newschaffer, C., Mandell, D. S., Wiggins, L. et al. (2009). Timing of Identification among Children with an Autism Spectrum Disorder: Findings from a Population-Based Surveillance Study. Journal of the American Academy of Child and Adolescent Psychiatry, 48, 474-483.
http://dx.doi.org/10.1097/CHI.0b013e31819b3848

has been cited by the following article:

• TITLE: The Developmental Trajectory of Imitation in Infants with Autism Spectrum Disorders: A Prospective Study

  AUTHORS: Wakako Sanefuji, Tomoka Yamamoto

  KEYWORDS: Imitation, Autism, Prospective Study, Infancy

  JOURNAL NAME: Psychology, Vol.5 No.11, August 25, 2014

  ABSTRACT: Impairments in imitation are present in young children with autism spectrum disorders (ASD), but the onset of these impairments is unknown. The present study investigated the developmental trajectories affiliated with various types of imitation. Imitative performances in infancy were observed in a prospective design, and retrospectively compared between ASD and typically developing (TD) infants. The results indicated that infants who later presented the symptoms of ASD showed less imitation at 13 months of age, but not at 11 months. Both of TD and ASD infants imitated more object manipulations than gestures and meaningless movements, and gestures were more frequent than meaningless movements. Imitation impairments in ASD appear to be delayed instead of being atypical. Our findings can be used in assessments of ASD before 18 months of age.