Zheng Ran, Naiman Ilana D, Skultety Jessica, Passmore Steven R, Lyons Jim, Glazebrook Cheryl M
1 University of Manitoba.
2 University of Alberta.
Motor Control. 2019 Jul 1;23(3):398-417. doi: 10.1123/mc.2017-0084. Epub 2019 Jan 29.
Although there are consistent reports that motor skills are affected in individuals with autism, the details are still debated; specifically, why individuals spend more time preparing movements and whether or not movement execution takes longer. The present study investigated if the conflicting reports were related to: (a) differences in movement type and (b) if longer reaction times were related to the time for motor planning or for force-generation processes. Participants performed three different movement types. People with autism had longer premotor reaction times and movement times for the three-dimensional movements only. We suggest individuals with autism have difficulty planning and executing unconstrained reaching movements specifically. The present results are consistent with evidence that autistic individuals have more difficulty effectively using visual feedback but can use tactile feedback to execute reaching movements efficiently and accurately.
尽管有一致的报告表明自闭症患者的运动技能会受到影响，但具体细节仍存在争议；特别是，为何个体在准备动作上花费更多时间，以及动作执行是否耗时更长。本研究调查了相互矛盾的报告是否与以下因素有关：（a）运动类型的差异，以及（b）较长的反应时间是否与运动计划时间或力量产生过程的时间有关。参与者进行了三种不同类型的运动。仅在三维运动中，自闭症患者的运动前反应时间和动作时间更长。我们认为自闭症个体在计划和执行无约束的伸手动作时尤其困难。目前的结果与以下证据一致，即自闭症个体在有效利用视觉反馈方面有更多困难，但可以利用触觉反馈高效且准确地执行伸手动作。
