Exploration of Verbal Intention and Gaze Clues Characteristics in Children With Autism: Based on Eye Tracking Technology
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 80
- 试验地点
- 1
- 主要终点
- Percentage of Total Fixation Duration on Objects
研究概览
简要总结
A 2×2×3 mixed design (intent word × object type × group: TD, ASD, ID) was used. Age-matched children watched videos and judged which object a model would pick; their choices and eye movements were recorded.
详细描述
A 2 (intent word: like, dislike) × 2 (object type: mentioned, unmentioned) × 3 (participant group: ASD, TD, ID) mixed experimental design was adopted. Children from the three age-matched groups (29 TD, 22 ASD, 24 ID) completed a video-watching task. In the video, a model was presented with two objects and uttered a sentence containing an intent word, a verb, and a noun, such as "I like to eat oranges." Based on the intent word, trials were divided into "like" and "dislike" conditions. Objects were classified as "mentioned" or "unmentioned" according to the verb and noun used. Participants were required to judge which object the model would pick while watching the video. Their choice responses and eye movements were recorded.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 3 Years 至 10 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •- Children clinically diagnosed with Autism Spectrum Disorder (ASD). Typically developing (TD) children with no developmental or neurological disorders.
- •Children clinically diagnosed with Intellectual Disability (ID).
- •Common criteria for all groups: Normal or corrected-to-normal vision, no color vision deficiencies, normal hearing, and written informed consent provided by their legal guardians.
排除标准
- •- Failure to meet the study's group-specific screening cutoffs on the Social Responsiveness Scale (SRS) and Social Communication Questionnaire (SCQ).
- •Failure to meet the study's group-specific screening cutoffs on the Autism Diagnostic Observation Schedule (ADOS).
- •Known genetic syndromes, significant hearing loss, or uncorrectable visual impairment.
研究组 & 干预措施
Autism Spectrum Disorder (ASD) Group
Typically Developing (TD) Group
Intellectual Disability（ID）Group
结局指标
主要结局
Percentage of Total Fixation Duration on Objects
时间窗: During the full 13 seconds video presentation
Percentage of Total Fixation Duration on Objects = (Total time fixating on target objects ÷ Total fixation duration across the scene) × 100%. It measures how much of overall viewing time is spent attending to predefined objects, reflecting attentional priority and object-driven cognitive engagement, normalized for individual differences.
The time to first fixation on an object within each defined TOI (Time of Interest)
时间窗: During the 0-2 s, 2-6 s, and 6-8 s intervals of video
Time to First Fixation on an Object within a TOI = time elapsed from TOI onset until the first fixation lands on that object. It measures how quickly attention is drawn to a target, reflecting salience or search efficiency. Shorter times indicate faster capture.
次要结局
未报告次要终点
研究者
Shan Gao
Professor
University of Electronic Science and Technology of China