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. 2023 Sep;16(9):1799-1810.
doi: 10.1002/aur.3002. Epub 2023 Aug 3.

Observational learning of atypical biological kinematics in autism

Nathan C Foster  1   2 , Simon J Bennett  3 , Kiri Pullar  1 , Joe Causer  3 , Cristina Becchio  1   2 , Daniel P Clowes  4 , Spencer J Hayes  4
Affiliations

Observational learning of atypical biological kinematics in autism

Nathan C Foster et al. Autism Res. 2023 Sep.

Abstract

Observing and voluntarily imitating the biological kinematics displayed by a model underpins the acquisition of new motor skills via sensorimotor processes linking perception with action. Differences in voluntary imitation in autism could be related to sensorimotor processing activity during action-observation of biological motion, as well as how sensorimotor integration processing occurs across imitation attempts. Using an observational practice protocol, which minimized the active contribution of the peripheral sensorimotor system, we examined the contribution of sensorimotor processing during action-observation. The data showed that autistic participants imitated both the temporal duration and atypical kinematic profile of the observed movement with a similar level of accuracy as neurotypical participants. These findings suggest the lower-level perception-action processes responsible for encoding biological kinematics during the action-observation phase of imitation are operational in autism. As there was no task-specific engagement of the peripheral sensorimotor system during observational practice, imitation difficulties in autism are most likely underpinned by sensorimotor integration issues related to the processing of efferent and (re)afferent sensorimotor information during trial-to-trial motor execution.

Keywords: autism spectrum disorder; biological motion kinematics; imitation; observational practice; sensorimotor integration.

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References

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