Franklin Anna, Sowden Paul, Burley Rachel, Notman Leslie, Alder Elizabeth
Department of Psychology, University of Surrey, Guildford, Surrey, GU2 5XH, England, UK.
J Autism Dev Disord. 2008 Nov;38(10):1837-47. doi: 10.1007/s10803-008-0574-6. Epub 2008 May 1.
This study examined whether color perception is atypical in children with autism. In experiment 1, accuracy of color memory and search was compared for children with autism and typically developing children matched on age and non-verbal cognitive ability. Children with autism were significantly less accurate at color memory and search than controls. In experiment 2, chromatic discrimination and categorical perception of color were assessed using a target detection task. Children with autism were less accurate than controls at detecting chromatic targets when presented on chromatic backgrounds, although were equally as fast when target detection was accurate. The strength of categorical perception of color did not differ for the two groups. Implications for theories on perceptual development in autism are discussed.
本研究探讨了自闭症儿童的颜色感知是否存在异常。在实验1中，对自闭症儿童和在年龄及非言语认知能力上相匹配的正常发育儿童的颜色记忆和搜索准确性进行了比较。自闭症儿童在颜色记忆和搜索方面的准确性明显低于对照组。在实验2中，使用目标检测任务评估了颜色的色度辨别和分类感知。当在彩色背景上呈现时，自闭症儿童在检测彩色目标方面的准确性低于对照组，不过在目标检测准确时，他们的速度与对照组一样快。两组在颜色分类感知的强度上没有差异。文中还讨论了这些结果对自闭症知觉发展理论的启示。
