Abstract
Autism is characterised by a range of perceptual and sensorimotor deficits, which might be related to abnormalities in how autistic individuals use prior knowledge. We investigated this proposition in a large non-clinical population in the context of the size-weight illusion, where individuals’ expectations about object weight influence their perceptions of heaviness and fingertip forces. Although there was no relationship between autistic traits and the magnitude of the illusion, we observed an inverse relationship between AQ scores and how expectations influenced initial fingertip force application. These findings provide a novel dissociation between how perceptual and sensorimotor processes are related to autistic traits, and suggest that autistic traits might explain some of the variance surrounding how individuals grip and lift objects.
Original language | English |
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Pages (from-to) | 1716-1724 |
Number of pages | 9 |
Journal | Journal of Autism and Developmental Disorders |
Volume | 46 |
Issue number | 5 |
Early online date | 28 Jan 2016 |
DOIs | |
Publication status | Published - May 2016 |
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Gnanathusharan Rajendran
- School of Social Sciences - Professor
- School of Social Sciences, Psychology - Professor
Person: Academic (Research & Teaching)