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ERIC Number: EJ859641
Record Type: Journal
Publication Date: 2009-Mar
Pages: 5
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0028-3932
Atypical Saccadic Scanning in Autistic Spectrum Disorder
Benson, Valerie; Piper, Jenna; Fletcher-Watson, Sue
Neuropsychologia, v47 n4 p1178-1182 Mar 2009
Saccadic scanning was examined for typically developing (TD) adults and those with autistic spectrum disorder (ASD) during inspection of the "Repin" picture (Yarbus, A. (1967). "Eye movements and vision". New York: Plenum) under two different viewing instructions: (A) material instructions ("Estimate the material circumstances of the family"); and (B) social instructions ("Estimate how long the unexpected visitor has been away"). Proportions of fixations and viewing time on the people and the objects in the scene differed between the two task instructions for TD, but not ASD participants showing that people with ASD did not differentially sample the scene according to top down instruction. One tentative explanation for these findings is that dysfunctional or underdeveloped fronto-parietal feedback systems in ASD, could result in defective saccadic sampling strategies, leading to impairments with cognitive processing in ASD. (Contains 1 figure.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A