Autism Spectrum Disorder (ASD)
Conditions
Keywords
Own-age bias, Joint attention, Temporal Dynamic, ASD
Brief summary
Attention allocation in ASD vs. TD children viewing social/non-social interactions by adult/child models, and the dynamics of social attention.
Detailed description
Participants: ASD group: 30 children; TD group: 29 children; age- and sex-matched. Apparatus: Non-invasive eye tracker (Tobii Pro Spectrum). Stimuli: Eight 60-second videos (4 with child models, 4 with adult models). Questionnaires/Assessments: SRS, AQ, SCQ, ADOS-2, PPVT. Experimental design: A 2 (group: TD, ASD) × 2 (model type: adult, child) × 2 (context: interactive, non-interactive) × 2 (phase: baseline, test) mixed design. Task: Free viewing of eight videos presented in random order.
Interventions
None listed
Sponsors
University of Electronic Science and Technology of China
Study design
Observational model
COHORT
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
3 Years to 9 Years
Healthy volunteers
Yes
Inclusion criteria
\- For ASD group: confirmed clinical diagnosis of Autism Spectrum Disorder(DSM-5/ADOS-2) For TD group：TD children without any developmental or neurological disorders Both groups：Normal or corrected-to-normal vision，no color vision deficiencies，and legal guardian provided written informed consent
Exclusion criteria
\- TD group: meet the study's group-specific screening cutoffs on SRS, SCQ or AQ ASD group：Failure to meet the study's group-specific screening cutoffs on ADOS-2 Both groups：Known genetic syndromes，significant hearing loss or uncorrectable visual impairment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Proportion of total fixation duration on human faces, context, activity areas | During the full 8 minutes video presentation | Proportion of total fiaxtion duration on human faces, context, activity areas was calculated as (total fixation duration on AOIs/ total fixation duration on the screen). |
| Number of saccades on human faces, context, activity areas | During the full 8 minutes video presentation | The number of saccades on human faces, context, activity areas occurring during an interval. |
| Social Prioritization Score on human faces, context, activity areas | During the full 8 minutes video presentation | The difference in the proportion of fixation time between social and non-social interaction information. |
Countries
China
Outcome results
None listed