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Autism Research and Treatment
Volume 2012, Article ID 123053, 11 pages
http://dx.doi.org/10.1155/2012/123053
Research Article

Visual Scanning Patterns during the Dimensional Change Card Sorting Task in Children with Autism Spectrum Disorder

1Department of Psychology, Sun Yat-sen University, 135 Xingang West Road, Guangzhou, Guangdong 510275, China
2Guangzhou Cana School, Longxing Middle Rd, Guangzhou, Guangdong 510540, China
3Guangzhou Rehabilitation & Research Center for Children with ASD, Longxing Middle Rd, Guangzhou, Guangdong 510540, China

Received 11 March 2012; Revised 13 May 2012; Accepted 24 August 2012

Academic Editor: Adriana Di Martino

Copyright © 2012 Li Yi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Impaired cognitive flexibility in children with autism spectrum disorder (ASD) has been reported in previous literature. The present study explored ASD children’s visual scanning patterns during the Dimensional Change Card Sorting (DCCS) task using eye-tracking technique. ASD and typical developing (TD) children completed the standardized DCCS procedure on the computer while their eye movements were tracked. Behavioral results confirmed previous findings on ASD children’s deficits in executive function. ASD children’s visual scanning patterns also showed some specific underlying processes in the DCCS task compared to TD children. For example, ASD children looked shorter at the correct card in the postswitch phase and spent longer time at blank areas than TD children did. ASD children did not show a bias to the color dimension as TD children did. The correlations between the behavioral performance and eye moments were also discussed.