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首页> 外文期刊>American journal on intellectual and developmental disabilities: AJIDD >Perceptual factors influence visual search for meaningful symbols in individuals with intellectual disabilities and Down syndrome or autism spectrum disorders
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Perceptual factors influence visual search for meaningful symbols in individuals with intellectual disabilities and Down syndrome or autism spectrum disorders

机译：知觉因素影响智障和唐氏综合症或自闭症谱系障碍患者视觉搜索有意义的符号

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摘要

Augmentative and alternative communication (AAC) systems often supplement oral communication for individuals with intellectual and communication disabilities. Research with preschoolers without disabilities has demonstrated that two visual-perceptual factors influence speed and/or accuracy of finding a target: the internal color and spatial organization of symbols. Twelve participants with Down syndrome and 12 with autism spectrum disorders (ASDs) completed two search tasks. In one, the symbols were clustered by internal color; in the other, the identical symbols had no arrangement cue. Visual search was superior in participants with ASDs compared to those with Down syndrome. In both groups, responses were significantly faster when the symbols were clustered by internal color. Construction of aided AAC displays may benefit from attention to their physical and perceptual features.
机译：增强和替代沟通（AAC）系统通常补充智力和沟通障碍者的口头沟通。对没有残疾的学龄前儿童的研究表明，两个视觉感知因素会影响寻找目标的速度和/或准确性：符号的内部颜色和空间组织。 12名唐氏综合症参与者和12名自闭症谱系障碍（ASD）参与者完成了两项搜索任务。在其中，符号由内部颜色聚类;另一方面，相同的符号没有布置提示。与患有唐氏综合症的人相比，具有ASD的参与者的视觉搜索效果更好。在两组中，当符号按内部颜色聚类时，响应速度明显加快。辅助AAC显示器的构造可能会受益于对其物理和感知特征的关注。

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