In children with autism spectrum disorder (ASD), problems with sensorimotor integration and difficulty in coordinating posture and arm motions may result in impaired motor planning and control. These children also exhibited fewer anticipatory postural adjustments and demonstrated more corrective control during arm movements. Compared with typically developing peers, children with ASD were less likely to use visual cues to plan for motions required to catch an item, such as a ball.
To examine the interplay of sensory cues, postural demands, and arm movement during ball-catching, researchers in Taiwan asked children with and without ASD to catch a ball rolling down a ramp toward them. Of the children, 15 had ASD and 15 were typically developing age- and sex-matched peers.