5
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Imitation from 12 to 24 months in autism and typical development: a longitudinal Rasch analysis.

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The development of imitation during the second year of life plays an important role in domains of sociocognitive development such as language and social learning. Deficits in imitation ability in persons with autism spectrum disorder (ASD) from toddlerhood into adulthood have also been repeatedly documented, raising the possibility that early disruptions in imitation contribute to the onset of ASD and the deficits in language and social interaction that define the disorder. This study prospectively examined the development of imitation between 12 and 24 months of age in 154 infants at familial risk for ASD and 78 typically developing infants who were all later assessed at 36 months for ASD or other developmental delays. The study established a developmental measure of imitation ability and examined group differences over time, using an analytic Rasch measurement model. Results revealed a unidimensional latent construct of imitation and verified a reliable sequence of imitation skills that was invariant over time for all outcome groups. Results also showed that all groups displayed similar significant linear increases in imitation ability between 12 and 24 months and that these increases were related to individual growth in both expressive language and ratings of social engagement but not in fine motor development. The group of children who developed ASD by age 3 years exhibited delayed imitation development compared with the low-risk typical outcome group across all time-points, but were indistinguishable from other high-risk infants who showed other cognitive delays not related to ASD.

          Related collections

          Author and article information

          Journal
          Dev Psychol
          Developmental psychology
          American Psychological Association (APA)
          1939-0599
          0012-1649
          Nov 2011
          : 47
          : 6
          Affiliations
          [1 ] Medical Investigation of Neurodevelopmental Disorders (M.I.N.D.) Institute, Department of Psychiatry and Behavioral Sciences, University of California, Davis, Sacramento, CA 95817, USA. gregorys.young@ucdmc.ucdavis.edu
          Article
          2011-20592-001 NIHMS472436
          10.1037/a0025418
          3712626
          21910524
          0833fe9e-0155-41f7-86c8-62e342bc8ad2

          Comments

          Comment on this article