The spatial location indicated by a visual cue can bias microsaccades directions towards or away from the cue. Aim of this work was to evaluate the microsaccades characteristics during the monkey’s training, investigating the relationship between a shift of attention and practice. The monkey was trained to press a lever at a target onset, then an expanding optic flow stimulus appeared to the right of the target. After a variable time delay, a visual cue appeared within the optic flow stimulus and the monkey had to release the lever in a maximum reaction time (RT) of 700 ms. In the control task no visual cue appeared and the monkey had to attend a change in the target color. Data were recorded in 9 months. Results revealed that the RTs at the control task changed significantly across time. The microsaccades directions were significantly clustered toward the visual cue, suggesting that the animal developed an attentional bias toward the visual space where the cue appeared. The microsaccades amplitude differed significantly across time. The microsaccades peak velocity differed significantly both across time and within the time delays, indicating that the monkey made faster microsaccades when it expected the cue to appear. The microsaccades number was significantly higher in the control task with respect to discrimination. The lack of change in microsaccades rate, duration, number and direction across time indicates that the experience acquired during practicing the task did not influence microsaccades generation.

视觉提示所指示的空间位置可能会使微扫视方向偏向或远离提示。这项工作的目的是评估猴子训练期间的微扫视特性，研究注意力转移和练习之间的关系。训练猴子在目标发作时按下操纵杆，然后在目标的右侧出现扩大的光流刺激。经过可变的时间延迟后，视觉提示出现在光学血流刺激内，猴子必须在700毫秒的最大反应时间（RT）内释放杠杆。在控制任务中，没有视觉提示出现，猴子不得不参加目标颜色的变化。在9个月内记录了数据。结果显示，控制任务的RT随时间变化很大。微扫视方向明显集中于视觉提示，表明该动物对提示出现的视觉空间产生了注意偏见。微扫视振幅随时间变化很大。微扫视的峰值速度在整个时间范围内以及在时间延迟内均存在显着差异，表明猴子在预期提示出现时做出了更快的微扫视。关于区分，在控制任务中微扫视数明显更高。微扫视的速率，持续时间，数量和方向在时间上没有变化，这表明练习任务期间获得的经验不会影响微扫视的产生。提示该动物对提示出现的视觉空间产生注意偏见。微扫视幅度随时间变化很大。微扫视的峰值速度在整个时间范围内以及在时间延迟内均存在显着差异，表明猴子在预期提示出现时做出了更快的微扫视。关于区分，在控制任务中微扫视数明显更高。微扫视的速率，持续时间，数量和方向在时间上没有变化，这表明练习任务期间获得的经验不会影响微扫视的产生。提示该动物对提示出现的视觉空间产生注意偏见。微扫视振幅随时间变化很大。微扫视的峰值速度在整个时间范围内以及在时间延迟内均存在显着差异，表明猴子在预期提示出现时做出了更快的微扫视。关于区分，在控制任务中微扫视数明显更高。微扫视的速率，持续时间，数量和方向在时间上没有变化，这表明练习任务期间获得的经验不会影响微扫视的产生。表明猴子在预期到提示时会发出更快的微扫视。关于区分，在控制任务中微扫视数明显更高。微扫视的速率，持续时间，数量和方向在时间上没有变化，这表明练习任务期间获得的经验不会影响微扫视的产生。表明猴子在预期到提示时会发出更快的微扫视。关于区分，在控制任务中微扫视数明显更高。微扫视的速率，持续时间，数量和方向在时间上没有变化，这表明练习任务期间获得的经验不会影响微扫视的产生。