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Atypical modulation of face-elicited saccades in autism spectrum disorder in a double-step saccade paradigm

Senju, Atsushi and Kikuchi, Y. and Akechi, H. and Hasegawa, T. and Tojo, Y. and Osanai, H. and Johnson, Mark H. (2011) Atypical modulation of face-elicited saccades in autism spectrum disorder in a double-step saccade paradigm. Research in Autism Spectrum Disorders 5 (3), pp. 1264-1269. ISSN 1750-9467.

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Atypical development of face processing is a major characteristic in autism spectrum disorder (ASD), which could be due to atypical interactions between subcortical and cortical face processing. The current study investigated the saccade planning towards faces in ASD. Seventeen children with ASD and 17 typically developing (TD) children observed a pair of upright or inverted face configurations flashed sequentially in two different spatial positions. The reactive saccades of participants were recorded by eye-tracking. The results did not provide evidence of overall impairment of subcortical route in ASD, However, the upright, but not the inverted, face configuration modulated the frequency of vector sum saccades (an index of subcortical control) in TD, but not in ASD. The current results suggest that children with ASD do not have overall impairment of the subcortical route, but the subcortical route may not be specialized to face processing.

Item Type: Article
Additional Information: “NOTICE: this is the author’s version of a work that was accepted for publication in Research in Autism Spectrum Disorders. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Research in Autism Spectrum Disorders, 5(3), July 2011, DOI:10.1016/j.rasd.2011.01.021”
Keyword(s) / Subject(s): Autism spectrum disorder, face processing, subcortical route, superior colliculus, double saccade, eye tracking
School or Research Centre: Birkbeck Schools and Research Centres > School of Science > Psychological Sciences
Depositing User: Administrator
Date Deposited: 21 Feb 2011 09:21
Last Modified: 17 Apr 2013 12:33

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