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What is the effect of stimulus complexity on attention to repeating and changing information in autism?
Arora, Iti Bellato, Alessio Gliga, Teodora Ropar, Danielle Kochhar, Puja Hollis, Chris P Groom, Madeleine J
Arora, Iti
Bellato, Alessio
Gliga, Teodora
Ropar, Danielle
Kochhar, Puja
Hollis, Chris P
Groom, Madeleine J
Abstract
Slower habituation to repeating stimuli characterises Autism, but it is not known whether this is driven by difficulties with information processing or an attentional bias towards sameness. We conducted eye-tracking and presented looming geometrical shapes, clocks with moving arms and smiling faces, as two separate streams of stimuli (one repeating and one changing), to 7-15 years old children and adolescents (n = 103) with Autism, ADHD or co-occurring Autism+ADHD, and neurotypical children (Study-1); and to neurotypical children (n = 64) with varying levels of autistic traits (Study-2). Across both studies, autistic features were associated with longer looks to the repeating stimulus, and shorter looks to the changing stimulus, but only for more complex stimuli, indicating greater difficulty in processing complex or unpredictable information.
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2021-03-19
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Arora et al 2021.pdf
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Arora I, Bellato A, Gliga T, Ropar D, Kochhar P, Hollis C, Groom M. What is the Effect of Stimulus Complexity on Attention to Repeating and Changing Information in Autism? J Autism Dev Disord. 2022 Feb;52(2):600-616. doi: 10.1007/s10803-021-04961-6. Epub 2021 Mar 19.
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