Motion defined exclusively by second-order characteristics does not evoke optokinetic nystagmus
Motion defined exclusively by second-order characteristics does not evoke optokinetic nystagmus
复制标题
仅由二阶特征定义的运动不会引起视动眼球震颤
作者：
L. Harris;A. T. Smith
摘要我们向受试者展示了高对比度的二阶运动刺激，同时记录了他们的水平眼球运动。这些刺激在诱发视动性眼震方面非常差。平滑追踪眼球运动和注视通过在假想注视点上方和下方±2.5度的掩蔽带减少。一阶刺激诱发强烈的视动性眼震（OKN）在相同的条件下，也匹配明显的对比度。这些研究结果进行了讨论的网站检测的二阶运动。
Abstract We showed high-contrast, second-order motion stimuli to subjects whilst recording their horizontal eye movements. These stimuli were very poor at evoking optokinetic nystagmus. Smooth-pursuit eye movements and fixation were reduced by a masking band ±2.5 deg above and below an imaginary fixation point. First-order stimuli evoked vigorous optokinetic nystagmus (OKN) under identical conditions and also when matched for apparent contrast. These findings are discussed in terms of the site of detection of second-order motion.