目的 分析孤独症谱系障碍(ASD)儿童在不同强度水平下面部表情的识别能力和识别特征。方法 选取15名高功能ASD儿童和15名生理年龄相匹配的正常儿童,考察ASD儿童对不同强度面孔表情识别特点和表情强度对面孔识别的影响。结果 1)ASD儿童的面孔识别认知水平低于正常组,其对积极情绪的识别成绩优于消极情绪;2)中水平表情强度的情绪识别快于低、高水平表情强度的情绪,但高水平表情强度的情绪识别正确率优于低、中水平表情强度的情绪。结论 1)ASD儿童存在面部表情认知上的缺陷;2)表情强度影响ASD儿童的面孔识别,表情强度越大,其表现的越清楚,表情的编码更为有效,也更容易被ASD儿童识别。

Objective To analyse facial recognition abilities and features of students with autism spectrum disorder under different intensity levels.Method A total of 15 children with high-functioning autism spectrum disorders and 15 biological age matched normal children were selected,to find face expression recognition characteristics of autism and effects of expression intensity.Result 1)The abilities of facial expression recagnition in children with autism spectrum disorder is significantly lower than that of normal children was score of identifying positive emotion was better than that of negative emotion;2)Medium level emotion recognition was faster than the low and high varying intensity,but the accuracy of high level of emotion recognition was better than that of low and medium level of emotion recognition.Conclusions 1)Autism have defects in facial expression recognition.2)Expression intensity affects facial expression recognition in ASD children Greater intensity of expression,better performance will make expression coding more effective,so that expression is more likely to be discerned for autism.