Peer-Reviewed Journal Details
Mandatory Fields
Leader, G., Loughnane, A., McMoreland, C., Reed, P.
2009
February
Journal Of Autism And Developmental Disorders
The effects of stimulus salience on overselectivity
Published
()
Optional Fields
Over-selectivity Comparator mechanism Stimulus salience Extinction NORMAL-CHILDREN AUTISTIC-CHILDREN OVERSELECTIVITY REDUCTION TASK
39
2
330
338
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.
DOI 10.1007/s10803-008-0626-y
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