ERIC Number: EJ1096553
Record Type: Journal
Publication Date: 2016-May
Pages: 15
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0162-3257
EISSN: N/A
The Mechanisms Underlying the ASD Advantage in Visual Search
Kaldy, Zsuzsa; Giserman, Ivy; Carter, Alice S.; Blaser, Erik
Journal of Autism and Developmental Disorders, v46 n5 p1513-1527 May 2016
A number of studies have demonstrated that individuals with autism spectrum disorders (ASDs) are faster or more successful than typically developing control participants at various visual-attentional tasks (for reviews, see Dakin and Frith in "Neuron" 48:497-507, 2005; Simmons et al. in "Vis Res" 49:2705-2739, 2009). This "ASD advantage" was first identified in the domain of visual search by Plaisted et al. ("J Child Psychol Psychiatry" 39:777-783, 1998). Here we survey the findings of visual search studies from the past 15 years that contrasted the performance of individuals with and without ASD. Although there are some minor caveats, the overall consensus is that--across development and a broad range of symptom severity--individuals with ASD reliably outperform controls on visual search. The etiology of the ASD advantage has not been formally specified, but has been commonly attributed to 'enhanced perceptual discrimination', a superior ability to visually discriminate between targets and distractors in such tasks (e.g. O'Riordan in "Cognition" 77:81-96, 2000). As well, there is considerable evidence for impairments of the attentional network in ASD (for a review, see Keehn et al. in "J Child Psychol Psychiatry" 37:164-183, 2013). We discuss some recent results from our laboratory that support an attentional, rather than perceptual explanation for the ASD advantage in visual search. We speculate that this new conceptualization may offer a better understanding of some of the behavioral symptoms associated with ASD, such as over-focusing and restricted interests.
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Attention, Symptoms (Individual Disorders), Severity (of Disability), Comparative Analysis
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Publication Type: Journal Articles; Information Analyses; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A