中文摘要：

以水平方向运动的垂直光栅作为视觉刺激，在对比了15名屈光参差性弱视患者和19名正常对照被试的运动方向辨别成绩后发现，弱视眼和非弱视眼的对比敏感度比值在添加噪音前后均不随时间频率变化，且在各个时间频率下外部噪音对弱视患者和正常人运动知觉的影响大致相当．这表明弱视运动知觉时间信息处理系统大致完好，对于理解弱视损伤机制和制定治疗方案都具有启示意义．

英文摘要：

There are two conflicting opinions about the mechanism of the motion perception deficit in amblyopia. One is that the deficit observed in temporal detection test ought to be accounted for by the deficit of the visual spatial information input from the amblyopic eye, while the other focuses on the temporal detection deficit of amblyopes. So far, no systematic research with external noise has been performed on the temporal perception of visual stimuli in amblyopia. In this study, we used drifting vertical sine-wave gratings under different temporal frequencies as stimuli, and compared the motion direction discrimination performances between fifteen anisometropic amblyopes and nineteen normal controls in the conditions with and without external noise. It can be concluded that the contrast sensitivity ratios between amblyopic eyes and non-amblyopic eyes are independent on the temporal frequency, and the external noise has the equivalent impact on the temporal detection performance in amblyopes and normal controls. Thus, it reveals that the temporal perception pathway of amblyopes is intact. This study can help with understanding the impairment mechanisms of amblyopia and pursuing a suitable therapy for amblyopes.