| Social skills deficiency is one of the core pathological features of individuals with Autism Spectrum Disorder(ASD).Social problems involve multiple aspects.ASD attention bias toward social stimuli is a very important area at present.Human attention resources are limited,and emotional information is more likely to occupy attention resources than neutral information.At present,most researchers pay attention to the processing of facial emotions but few studies have investigated the attention bias of ASD individuals towards emotional body language.Body emotion is also a type of social stimulus,and in some cases,for example,when a person is far away or somebody needs to take action,may provide more information than the face.In order to comprehensively investigate the processing of social stimuli by ASD individuals,this study combines attention bias paradigm with emotional body language,explores the attention bias of ASD individuals to different types of emotional body language,and deepens people’s understanding of the cognitive process of ASD individuals,and provide theoretical basis for the application of attention bias training of ASD.In this study,we use attention bias task,combined with eye trackers to record the eye movements of the subjects during the experiment.Adolescents with high functional ASD and typical developmental youth(TD)matched from physiological age and intelligence level were selected as subjects.In the first experiment,the point detection paradigm was used to explore the response of ASD individuals to the detection points under the four emotional body languages of happiness,sadness,anger,and fear.Individuals have a tendency to pay attention to emotional body language,and TD individuals have fixed attention to fear.In order to rule out the influence of ASD individual operation ability,experiment 2 used eye-tracking equipment and adopted the free browsing paradigm to increase the presentation time of stimuli.When different types of stimuli co-occurred,the two groups’ fixation time and total fixation time at the first viewpoint,the total number of fixations,the first eye-point latency period of these four eye movement indicators.By calculating the bias scores of these four indicators,we can determine the attention bias and specific performance of ASD individuals on emotional body language.This study draws the following conclusions:(1)As can be seen from the eye movement data,ASD individuals can recognize emotional body language and have an attention bias towards emotional body language.(2)ASD people avoiding the body language of sadness,and be alert to the body language of happiness. |
