Annaz, Dagmara and Remington, A. and Milne, E. and Coleman, M. and Campbell, R. and Thomas, Michael S.C. and Swettenham, J. (2009) Development of motion processing in children with autism. Developmental Science 13 (6), pp. 826-838. ISSN 1363-755X.Full text not available from this repository.
Recent findings suggest that children with autism may be impaired in the perception of biological motion from moving point-light displays. Some children with autism also have abnormally high motion coherence thresholds. In the current study we tested a group of children with autism and a group of typically developing children aged 5 to 12 years of age on several motion perception tasks, in order to establish the specificity of the biological motion deficit in relation to other visual discrimination skills. The first task required the recognition of biological from scrambled motion. Three quasi-psychophysical tasks then established individual thresholds for the detection of biological motion in dynamic noise, of motion coherence and of form-from-motion. Lastly, individual thresholds for a task of static perception – contour integration (Gabor displays) – were also obtained. Compared to controls, children with autism were particularly impaired in processing biological motion in relation to any developmental measure (chronological or mental age). In contrast, there was some developmental overlap in ability to process other types of visual motion between typically developing children and the children with autism, and evidence of developmental change in both groups. Finally, Gabor display thresholds appeared to develop typically in children with autism.
|Keyword(s) / Subject(s):||Autism, biological motion, form-from-motion, motion coherence, developmental disorder, trajectory analyses|
|School or Research Centre:||Birkbeck Schools and Research Centres > School of Science > Psychology|
|Date Deposited:||29 Nov 2010 13:57|
|Last Modified:||17 Apr 2013 12:19|
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