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ERIC Number: EJ825253
Record Type: Journal
Publication Date: 2009-Feb
Pages: 9
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0162-3257
The Effect of Stimulus Salience on Over-Selectivity
Leader, Geraldine; Loughnane, Ann; McMoreland, Claire; Reed, Phil
Journal of Autism and Developmental Disorders, v39 n2 p330-338 Feb 2009
The influence of stimulus salience on over-selective responding was investigated in the context of a comparator theory of over-selectivity. In Experiments 1 and 2, participants were presented with two cards, each displaying two colors. In comparison to matched control participants, participants with Autistic Spectrum Disorder (ASD) demonstrated more over-selectivity, which increased when the stimuli differed in salience. In Experiment 3, the over-selected color was extinguished, and the previously under-selected color emerged to control behavior. The results suggest that stimuli of different salience may trigger over-selectivity in individuals with ASD, and provide preliminary support that this may be due to the action of an over-sensitive comparator mechanism functioning at the retrieval level of processing.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A