National Vision Research Institute, Australian College of Optometry, Carlton, Victoria, Australia.
ARC Centre of Excellence for Integrative Brain Function, University of Melbourne, Parkville, Victoria, Australia.
PLoS One. 2017 Dec 4;12(12):e0189030. doi: 10.1371/journal.pone.0189030. eCollection 2017.
The sudden movement of a wide-field image leads to a reflexive eye tracking response referred to as short-latency ocular following. If the image motion occurs soon after a saccade the initial speed of the ocular following is enhanced, a phenomenon known as post-saccadic enhancement. We show in macaque monkeys that repeated exposure to the same stimulus regime over a period of months leads to progressive increases in the initial speeds of ocular following. The improvement in tracking speed occurs for ocular following with and without a prior saccade. As a result of the improvement in ocular following speeds, the influence of post-saccadic enhancement wanes with increasing levels of training. The improvement in ocular following speed following repeated exposure to the same oculomotor task represents a novel form of sensori-motor learning in the context of a reflexive movement.
宽场图像的突然移动会导致反射性眼球追踪反应，称为短潜伏期眼跟踪。如果图像运动发生在扫视之后不久，那么眼跟踪的初始速度会增强，这一现象称为扫视后增强。我们在猕猴身上表明，在数月的时间内重复暴露于相同的刺激模式会导致眼跟踪的初始速度逐渐增加。具有和不具有先前扫视的眼跟踪的跟踪速度都会提高。由于眼跟踪速度的提高，随着训练水平的提高，扫视后增强的影响会减弱。在重复暴露于相同的眼球运动任务后，眼跟踪速度的提高代表了反射性运动背景下一种新的感觉运动学习形式。
