Studies of Psychology and Behavior ›› 2017, Vol. 15 ›› Issue (3): 392-399.

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Motion Features of Target Stimuli Modulate Smooth Pursuit Eye Movement of Children with Autism Spectrum Disorder

Chen Shunsen1, Lin Caiyun1,2, Ren Jie1   

  1. 1 College of education science, Minnan Normal University, Zhangzhou, Fujian, 363000;
    2 Tianhe College Of Guangdong Polytechnic Normal University, Guangzhou, Guangdong, 510540
  • Received:2016-02-03 Online:2017-06-08 Published:2017-05-20

目标刺激运动特征对自闭症谱系障碍儿童平滑追踪眼动的影响*

陈顺森1, 林彩云1,2, 任杰1   

  1. 1 闽南师范大学教育科学学院,漳州 363000
    2 广东技术师范学院天河学院,广州 510540
  • 通讯作者: 陈顺森,E-mail:shunsen@163.com。
  • 基金资助:
    国家社会科学基金教育类青年课题(CBA120104)

Abstract: We adopted 18 Autism Spectrum Disordered(ASD)children aged 3-5 and 18 matched typical developing (TD)children, collecting their eye movement data during watching a video of one single stimulus moving along sinusoidal path with different vertical amplitudes and horizontal velocity, to explore the influence of motion features on smooth pursuit eye movements(SPEM)in subjects. Results indicated that: 1)In ASD group, the deviations of tracking between positions of fixation points and their corresponding targets were significantly higher than the ones in the TD groups, which indicated their eye movement showed less uniform and less smooth trajectory, and it revealed pursuit deficits in ASD. 2)Tracking with small amplitude motion was much better than large amplitude motion in TD children, but ASD children just on the contrary. 3)With the target's speeding up, both groups' tracking performance decreased indicated by a larger position deviation. This research summarizes that children with autism have some certain types of defects in SPEM, such as tracking small amplitude motion target.

Key words: Autism Spectrum Disorder, smooth pursuit eye movements, position deviation

摘要: 选取3~5岁自闭症谱系障碍儿童(Autism Spectrum Disorder, ASD)与正常儿童各18名,采集其观看目标刺激沿不同垂直幅度、水平速度正弦曲线运动视频的眼动数据,考察振幅、速度等目标运动特征对被试平滑追踪眼动的影响。结果发现:(1)ASD儿童平滑追踪目标刺激的视觉位置误差显著大于正常儿童,其追踪目标的眼动轨迹不如正常组儿童平滑均匀,平滑追踪眼动存在明显不足。(2)正常儿童追踪目标刺激大振幅运行的位置误差显著大于小振幅运行条件,但ASD儿童却与之相反。(3)与正常儿童一样,目标刺激运行速度越快,ASD儿童平滑追踪的位置误差越大。总之,ASD儿童存在平滑追踪能力的不足;相比追踪大振幅运动的目标,ASD儿童追踪小振幅运动目标的能力更差。

关键词: 自闭症谱系障碍, 平滑追踪眼动, 位置误差

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