- Title
- Slow motor responses to visual stimuli of low salience in autism
- Creator
- Todd, Jessica; Mills, Charlotte; Wilson, Andrew; Plumb, Mandy; Mon-Williams, Mark
- Date
- 2009
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/158071
- Identifier
- vital:11751
- Identifier
-
https://doi.org/10.3200/35-08-042
- Identifier
- ISSN:0022-2895
- Abstract
- The authors studied 2 tasks that placed differing demands on detecting relevant visual information and generating appropriate gaze shifts in adults and children with and without autism. In Experiment 1, participants fixated a cross and needed to make large gaze shifts, but researchers provided explicit instructions about shifting. Children with autism were indistinguishable from comparison groups in this top-down task. In Experiment 2 (bottom-up), a fixation cross remained or was removed prior to the presentation of a peripheral target of low visual salience. In this gap-effect experiment, children with autism showed lengthened reaction times overall but no specific deficit in overlap trials. The results show evidence of a general deficit in manual responses to visual stimuli of low salience and no evidence of a deficit in top-down attention shifting. Older children with autism appeared able to generate appropriate motor responses, but stimulus-driven visual attention seemed impaired.
- Relation
- Journal of Motor Behavior Vol. 41, no. 5 (2009), p. 419-426
- Rights
- © 2009 Heldref Publications
- Rights
- This metadata is freely available under a CCO license
- Subject
- 1106 Human Movement and Sports Science; Autism; Manual responses; Reaction time; Visual attention
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