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Atypical saccadic scanning in autistic spectrum disorder

Atypical saccadic scanning in autistic spectrum disorder
Atypical saccadic scanning in autistic spectrum disorder
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.
saccadic scanning, selective saccadic sampling, cognitive processing, autistic spectrum disorder (ASD)
0028-3932
1178-1182
Benson, Valerie
4827cede-6668-4e3d-bded-ade4cd5e5db5
Piper, Jenna
782fbefa-f170-485a-b7f9-2d08752db145
Fletcher-Watson, Sue
36c40f82-1226-49d3-b5f7-ae3ade23259b
Benson, Valerie
4827cede-6668-4e3d-bded-ade4cd5e5db5
Piper, Jenna
782fbefa-f170-485a-b7f9-2d08752db145
Fletcher-Watson, Sue
36c40f82-1226-49d3-b5f7-ae3ade23259b

Benson, Valerie, Piper, Jenna and Fletcher-Watson, Sue (2009) Atypical saccadic scanning in autistic spectrum disorder. Neuropsychologia, 47 (4), 1178-1182. (doi:10.1016/j.neuropsychologia.2008.11.019).

Record type: Article

Abstract

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.

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More information

Published date: March 2009
Keywords: saccadic scanning, selective saccadic sampling, cognitive processing, autistic spectrum disorder (ASD)

Identifiers

Local EPrints ID: 64718
URI: https://eprints.soton.ac.uk/id/eprint/64718
ISSN: 0028-3932
PURE UUID: 054c0788-2fb5-47f1-8e95-179aac7dec69

Catalogue record

Date deposited: 06 Aug 2009
Last modified: 13 Mar 2019 20:21

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