Knox Paul C, Bekkour Tarik
Division of Orthoptics, University of Liverpool, Brownlow Hill, Liverpool L69 3BX, UK.
Prog Brain Res. 2002;140:211-24. doi: 10.1016/S0079-6123(02)40052-0.
Smooth pursuit is usually regarded as a relatively stereotyped oculomotor response in which the early part of the response reflects primarily the properties of the visual stimulus and cortical motion processing. We have investigated pursuit initiation in human subjects using the gap paradigm to alter fixation conditions, and single stationary distractors to alter visual context. The results suggest that a number of processes, distinct from motion processing, are involved in pursuit initiation. The processes which are modified by gaps and distractors are closely related and interact with each other. They may be shared with the saccade system.
平稳跟踪通常被视为一种相对刻板的眼球运动反应，其中该反应的早期部分主要反映视觉刺激和皮层运动处理的特性。我们使用间隙范式改变注视条件，并使用单个静止干扰物改变视觉环境，对人类受试者的跟踪启动进行了研究。结果表明，一些与运动处理不同的过程参与了跟踪启动。被间隙和干扰物改变的过程密切相关且相互作用。它们可能与扫视系统共享。
