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  

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

作　　者：陈顺森[1] 林彩云[1,2] 任杰[1] 

机构地区：[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

出　　处：《心理与行为研究》2017年第3期392-399,共8页Studies of Psychology and Behavior

基　　金：国家社会科学基金教育类青年课题(CBA120104)

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。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.

关 键 词：自闭症谱系障碍 平滑追踪眼动 位置误差. 

分 类 号：B842[哲学宗教—基础心理学]