Understanding Of Scene Function In Different Autistic Trait

Scene perception is concerned with awareness and processing of surroundings,where scene function refers to the action behaviors or activities that individuals may perform during their interactions with the environment.In recent years,scene function has been gaining attention from researchers,but further exploration is needed regarding the attention of scene function and the understanding of scene function in special groups such as individuals with autism spectrum disorders.In order to gain insight into the attention processing of understanding of scene function and to explore the characteristics of scene function comprehension in people with autism spectrum disorders,we combined visual world paradigm and "autism-like" studies with normal groups to explore these issues.The Simplified Chinese version of the Autism Trait Questionnaire was used to divide normal college students into high and low trait groups,and the high trait group was used to compared to the autism group.Before the experiment,a questionnaire was used to evaluate the relationship between scenes and functions.During the experiment,subjects heard a description containing behavioral functions,and saw 4 scenes,1 high-contact scene,2 medium-contact scenes,and 1 lowcontact scene.The study consisted of 2 sub-studies and 4 experiments.Study 1 characterized the scenes in word form and included 2 experiments.Experimental 1 required subjects to mouse click on the most appropriate scene among the 4 scenes with what they heard,with30 college students in each of the high and low trait groups.The results showed that the fixation rate curves for the 3 types of scenes showed a hierarchy of "high-contact scene >medium-contact scene > low-contact scene",and both groups showed this pattern.In Experiment 2,which verified Experiment 1 in inappropriate function,and the subjects were asked to click on the most inappropriate scene among the 4 scenes.The results showed that the fixation rate curves for the 3 types of scenes showed a hierarchy of "lowcontact scene > medium-contact scene > high-contact scene",and both groups showed this pattern.Study 2,based on Study 1,was further ecologized to represent the scenes in the form of images and consisted of 2 experiments.In Experiment 3,the subjects were asked to click on the most appropriate scenes among the 4 scenes,with 30 college students in each of the high and low trait groups.The results showed that the fixation rate curves for the 3 types of scenes showed a hierarchy of "high-contact scene > medium-contact scene > low-contact scene",and both groups showed this pattern,but the fixation bias for the high-contact scene(target scenes)appeared later in the high-trait group than in the low-trait group.The Experiment 4 required subjects to mouse click on the most inappropriate scene in relation to what they heard,with 32 college students in each of the high and low trait groups.The main results showed that the fixation rate curves for the 3types of scenes showed a hierarchy of "low-contact scene > medium-contact scene > highcontact scene",and both groups showed this pattern,but the fixation bias for the lowcontact scenes(target scenes)appeared later in the high trait group than in the low trait group.The results of this study suggest that scene function can direct individual fixation and exhibit different fixation hierarchies depending on the task.Compared with world form stimuli,image form stimuli with rich information help to activate the scene function.When the visual stimulus was an image,the high trait group processed scene function less efficiently than the low trait group.