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    Adults with Autism Spectrum Disorder are sensitive to the kinematic features defining natural human motion

    Edey, Rosanna and Cook, J. and Brewer, Rebecca and Bird, Geoffrey and Press, Clare (2018) Adults with Autism Spectrum Disorder are sensitive to the kinematic features defining natural human motion. Autism Research , ISSN 1939-3792. (In Press)

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    Abstract

    It has been hypothesized that individuals with Autism Spectrum Disorder (hereafter ‘autism’) have problems perceiving biological motion, which contributes to their social difficulties. However, the ability to perceive the kinematic profile characteristic of biological motion has not been systematically examined in autism. To examine this basic perceptual ability we conducted two experiments comparing adults with autism with matched typical adults. In Experiment 1, participants indicated whether two movements – which differed in the quantity of formula-generated biological motion – were the same or different. In Experiment 2, they judged which of two movements was ‘less natural’, where the stimuli varied in the degree to which they were a product of real movement data produced by autistic and typical models. There were no group differences in perceptual sensitivity in either experiment, with null effects supported by Bayesian analyses. The findings from these two experiments demonstrate that adults with autism are sensitive to the kinematic information defining biological motion to a typical degree – they are both able to detect the perceptual information in a same-different judgment, and as inclined to categorize biological motion derived from real models as natural. These findings therefore provide evidence against the hypothesis that individuals with autism exhibit low-level difficulties in perceiving the kinematics of others’ actions, suggesting that atypicalities arise either when integrating this kinematic information with other perceptual input, or in the interpretation of kinematic information.

    Metadata

    Item Type: Article
    Additional Information: This is the peer reviewed version of the article, which has been published in final form at the link above. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Research Centre: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Clare Press
    Date Deposited: 29 Oct 2018 09:31
    Last Modified: 25 Jan 2019 14:46
    URI: http://eprints.bbk.ac.uk/id/eprint/24838

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