Research advances of eye tracking technology in children with autism spectrum disorder
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摘要: 孤独症谱系障碍(autism spectrum disorder,ASD)是一类神经发育障碍性疾病,其核心症状是社交能力缺陷、兴趣狭隘、重复刻板样行为。眼神注视异常是ASD儿童的临床症状之一,也是早期行为学标记。ASD儿童与正常发育儿童的眼动特征存在显著差异,主要表现为对社交属性刺激的视觉注视减少或缺失,分析眼动特征能为ASD研究提供客观化指标。眼动追踪技术(eye tracking,ET)是一项客观的非侵入性检查新技术,可以直观、准确地观测视觉注视时间及时间分配,能够对ASD儿童的社会注意、局限性兴趣、情绪识别等进行更准确更敏感的测量,已成为ASD领域的研究热点。在早期识别筛查方面,ET可以了解评估ASD儿童的早期行为发育,并作为早期识别筛查的方法之一;在诊断方面,ET能将主观行为观察与客观行为指标相结合;在治疗方面,ET能辅助制订个体化干预方案;在预后分析方面,ET能作为症状严重程度的预测工具。梳理近年来ET在ASD儿童早期筛查识别、早期诊断、早期干预治疗、预后分析等方面的应用及ASD儿童眼动的神经机制等研究进展并进行综述。未来的研究应进一步探索ASD儿童眼动的神经机制,将眼动追踪技术与5G技术、虚拟技术、机器人技术结合,拓展眼动追踪技术的应用范围,为ASD的病因探寻和康复治疗提供新的思路与方法。Abstract: Autism spectrum disorder (ASD) is a group of neurodevelopmental disorder whose core symptoms are social deficits, narrow interests, and repetitive stereotype-like behaviors. Abnormal eye fixation is one of the clinical symptoms and early behavioral markers in children with ASD. Eye movement characteristics of children with ASD differ significantly from those of normally developing children, mainly in terms of reduced or absent visual gaze to socially attributed stimuli. Analysis of eye movement characteristics can provide an objective indicator for ASD research. Eye tracking (ET) technology is a new objective and non-invasive examination technique that can visually and accurately observe visual gaze duration and time allocation, and can provide more accurate and sensitive measurements of social attention, restricted interest, and emotion recognition in children with ASD. It has become a research hotspot in the field of ASD. In early identification screening, ET can understand and assess the early behavioral development of children with ASD and serve as one of the pathways for early identification screening. In diagnosis, ET combines subjective behavioral observations with objective behavioral indicators. In treatment, ET can assist in developing individualized intervention plans. In analyzing prognosis, ET can serve as a predictive tool for symptom severity. The application of ET in early screening and identification, early diagnosis, early intervention and treatment, prognosis analysis and the research progress of the neural mechanism of eye movement in children with ASD are summarized. Future research should further explore the neural mechanisms of eye movements in children with ASD and combine ET with 5G technology, virtual technology, and robotics to expand the application of ET and provide new ideas and methods for the exploration of the etiology and rehabilitation treatment of ASD.
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Key words:
- Autism spectrum disorder /
- Eye tracking /
- Visual attention /
- Early identification /
- Children
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