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The Mechanisms Underlying the ASD Advantage in Visual Search
Zsuzsa Kaldy1, Ivy Giserman2, Alice S Carter2
1Department of Psychology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA, 02125, USA. zsuzsa.kaldy@umb.edu.
Journal of Autism and Developmental Disorders
|October 5, 2013
Summary
Individuals with autism spectrum disorders (ASDs) consistently show an advantage in visual search tasks compared to neurotypical individuals. This advantage is increasingly attributed to attentional mechanisms rather than enhanced perception.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Developmental Psychology
Background:
- Autism spectrum disorders (ASDs) are associated with unique cognitive profiles.
- Previous research indicates individuals with ASDs often outperform controls on visual-attentional tasks.
- The 'ASD advantage' in visual search was first noted in 1998.
Purpose of the Study:
- To review visual search studies over the past 15 years comparing individuals with and without ASDs.
- To investigate the underlying mechanisms of the 'ASD advantage' in visual search.
- To explore attentional versus perceptual explanations for this advantage.
Main Methods:
- Systematic review of visual search studies involving individuals with and without ASDs.
- Analysis of findings across different developmental stages and symptom severities.
- Discussion of recent laboratory results supporting specific theoretical frameworks.
Main Results:
- A consistent consensus shows individuals with ASDs outperform controls in visual search tasks.
- The 'ASD advantage' is observed across development and varying symptom severity.
- Recent findings suggest an attentional explanation over enhanced perceptual discrimination.
Conclusions:
- The 'ASD advantage' in visual search is a robust finding.
- Attentional network differences in ASD may explain superior visual search performance.
- This reconceptualization could enhance understanding of ASD-related behaviors like over-focusing.
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