Manning Catherine, Charman Tony, Pellicano Elizabeth
Centre for Research in Autism and Education (CRAE), UCL Institute of Education, University College London, 55-59 Gordon Square, London, WC1H 0NU, UK,
J Autism Dev Disord. 2015 Jul;45(7):2252-8. doi: 10.1007/s10803-015-2365-1.
Contrasting reports of reduced and intact sensitivity to coherent motion in autistic individuals may be attributable to stimulus parameters. Here, we investigated whether dot lifetime contributes to elevated thresholds in children with autism. We presented a standard motion coherence task to 31 children with autism and 31 typical children, with both limited and unlimited lifetime conditions. Overall, children had higher thresholds in the limited lifetime condition than in the unlimited lifetime condition. However, children with autism were affected by this manipulation to the same extent as typical children and were equally sensitive to coherent motion. Our results suggest that dot lifetime is not a critical stimulus parameter and speak against pervasive difficulties in coherent motion perception in children with autism.
关于自闭症个体对连贯运动的敏感性降低和未受损的相互矛盾的报告可能归因于刺激参数。在此，我们研究了点的持续时间是否会导致自闭症儿童的阈值升高。我们向31名自闭症儿童和31名正常儿童呈现了一个标准的运动连贯性任务，包括有限持续时间和无限持续时间两种条件。总体而言，儿童在有限持续时间条件下的阈值高于无限持续时间条件下的阈值。然而，自闭症儿童受到这种操作的影响程度与正常儿童相同，并且对连贯运动同样敏感。我们的结果表明，点的持续时间不是一个关键的刺激参数，并且反驳了自闭症儿童在连贯运动感知方面存在普遍困难的观点。
