ERIC Number: EJ1004128
Record Type: Journal
Publication Date: 2013-Jun
Abstractor: As Provided
Reference Count: 70
Visual Search Targeting Either Local or Global Perceptual Processes Differs as a Function of Autistic-Like Traits in the Typically Developing Population
Almeida, Renita A.; Dickinson, J. Edwin; Maybery, Murray T.; Badcock, Johanna C.; Badcock, David R.
Journal of Autism and Developmental Disorders, v43 n6 p1272-1286 Jun 2013
Relative to low scorers, high scorers on the Autism-Spectrum Quotient (AQ) show enhanced performance on the Embedded Figures Test and the Radial Frequency search task (RFST), which has been attributed to both enhanced local processing and differences in combining global percepts. We investigate the role of local and global processing further using the RFST in four experiments. High AQ adults maintained a consistent advantage in search speed across diverse target-distracter stimulus conditions. This advantage may reflect enhanced local processing of curvature in early stages of the form vision pathway and superior global detection of shape primitives. However, more probable is the presence of a superior search process that enables a consistent search advantage at both levels of processing.
Descriptors: Cognitive Processes, Eye Movements, Pervasive Developmental Disorders, Visual Perception, Symptoms (Individual Disorders), Stimuli
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A