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首页> 美国卫生研究院文献>other >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 of individuals with intellectual and communication disabilities. Research with nondisabled preschoolers 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 ASD underwent 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 ASD 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/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人士的口头沟通。对残障学龄前儿童的研究表明，两个视觉感知因素会影响找到目标的速度和/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ASD参与者接受了两项搜索任务。在其中，符号由内部颜色聚类；在其他相同的符号没有安排线索。与唐氏综合症患者相比，ASD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/感知特征的关注。

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