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首页> 外文期刊>Iranian journal of psychiatry. >Comparison between Face and Object Processing in Youths with Autism Spectrum Disorder: An event related potentials study
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Comparison between Face and Object Processing in Youths with Autism Spectrum Disorder: An event related potentials study

机译：自闭症谱系障碍青少年面部和物体处理之间的比较：与事件相关的潜能研究

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ObjectiveIncapability in face perception and recognition is one of the main issues in autism spectrum disorders (ASD). Event related potential (ERP) studies have revealed controversial insights on autistic brain responses to faces and objects. The current investigation examined the ERP components of young children with ASD compared to a typically developing (TD) group when looking at the upright and inverted images of faces and cars.MethodsFourteen children and adolescents aged between 9 and 17 diagnosed as having ASD were compared with 18 age- gender matched normally developing individuals. All participants’ ERPs were recorded while they were seeing the images of human faces and objects in both upright and inverted positions. The ERP components including N170 (latency and amplitude) were compared between the two groups in two conditions of upright and inverted using the repeated measure analysis method.ResultsThe processing speed for upright faces was faster than the inverted faces in the TD group; however, the difference was not significant. A significant difference was observed in terms of N170 latency between the two groups for different stimulus categories such as objects and faces(p<0.05). Moreover, inverted vs. upright stimuli in both groups elicited a greater response in terms of N170 amplitude in both groups, and this effect was significantly prominent in the right hemisphere (p<0.05). The N170 amplitude turned out to be greater for the inverted vs. upright stimuli irrespective of the stimuli type and group.ConclusionThese data suggest youths with ASD have difficulty processing information, particularly in face perception regardless of the stimuli orientation.
机译：客观的面部感知和识别能力不足是自闭症谱系障碍（ASD）的主要问题之一。事件相关电位（ERP）研究揭示了对面部和物体自闭症大脑反应的有争议的见解。当前的调查通过观察面部和汽车的正立和倒立图像，比较了ASD幼儿与典型发育（TD）组的ERP成分。方法将14名年龄在9至17岁之间的被诊断患有ASD的儿童和青少年与18个年龄相匹配的正常发育个体。所有参与者的ERP都在他们看到人脸和物体在直立和倒立位置的图像时被记录下来。采用重复测量分析方法，比较两组在直立和倒立两种情况下的ERP成分，包括N170（潜伏期和幅度）。结果直立面的处理速度比TD组中的倒立面要快。但是，差异并不明显。两组在不同刺激类别（如物体和面部）的N170潜伏期方面存在显着差异（p <0.05）。此外，两组的反向刺激与直立刺激在N170振幅方面均引起更大的反应，并且这种效果在右半球显着（p <0.05）。无论是何种刺激类型和组，倒立刺激和直立刺激的N170振幅都更大。结论这些数据表明，患有ASD的年轻人难以处理信息，特别是在面部知觉方面，无论刺激的方向如何。

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