Center for Learning and Memory, The University of Texas at Austin, Austin, Texas 78712
Department of Neuroscience, The University of Texas at Austin, Austin, Texas 78712.
eNeuro. 2024 Jun 17;11(6). doi: 10.1523/ENEURO.0027-24.2024. Print 2024 Jun.
Animals use a combination of eye movements to track moving objects. These different eye movements need to be coordinated for successful tracking, requiring interactions between the systems involved. Here, we study the interaction between the saccadic and smooth pursuit eye movement systems in marmosets. Using a single-target pursuit task, we show that saccades cause an enhancement in pursuit following a saccade. Using a two-target pursuit task, we show that this enhancement in pursuit is selective toward the motion of the target selected by the saccade, irrespective of any biases in pursuit prior to the saccade. These experiments highlight the similarities in the functioning of saccadic and smooth pursuit eye movement systems across primates.
动物通过眼部运动的组合来跟踪移动物体。这些不同的眼部运动需要协调,以实现成功的跟踪,这需要相关系统之间的相互作用。在这里,我们研究了狨猴的扫视和平滑追踪眼球运动系统之间的相互作用。使用单一目标追踪任务,我们发现扫视会在扫视后增强对目标的追踪。使用双目标追踪任务,我们发现这种对目标的追踪增强是针对扫视选择的目标的运动,而不考虑扫视前追踪的任何偏向。这些实验突出了灵长类动物扫视和平滑追踪眼球运动系统的功能相似性。