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 12 (2), pp. 284-294. ISSN 1939-3792.

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

Statistics

DownloadsShow export options

Export as XMLJSONCSV

Activity Overview

6 month trend

186Downloads

6 month trend

312Hits

Additional statistics are available via IRStats2.

Archive Staff Only (login required)

Edit/View Item