How do Individuals with Autism Plan Their Movements?

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• 作者：Cheryl M. Glazebrook ; Digby Elliott and Peter Szatmari
• 关键词：Motor control ; Movement ; Planning
• 刊名：Journal of Autism and Developmental Disorders
• 出版年：2008
• 出版时间：January, 2008
• 年：2008
• 卷：38
• 期：1
• 页码：114-126
• 全文大小：318.6 KB

文摘

Two experiments investigated how persons with and without autism plan manual aiming movements when advance information is direct and when strategic planning is required. In Experiment 1 advance information about hand, direction, and/or movement amplitude was manipulated. Reaction times suggested both groups adopted a hierarchical pattern of movement planning. In Experiment 2, participants performed aiming movements to one of two targets that were the same or different size. Participants without autism varied the starting location in anticipation of specific target stimuli whereas participants with autism consistently selected the midpoint. Overall, individuals with autism used advance information to plan their movements when this information was direct. However, their performance became stereotyped when strategies were self-generated.