关键词: eye movements marmoset saccades smooth pursuit

Mesh : Animals Callithrix / physiology Pursuit, Smooth / physiology Saccades / physiology Male Female Photic Stimulation / methods Motion Perception / physiology

来  源:   DOI:10.1523/ENEURO.0027-24.2024   PDF(Pubmed)

Abstract:
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.
摘要:
动物使用眼球运动的组合来跟踪移动的物体。这些不同的眼球运动需要协调才能成功跟踪,需要所涉及的系统之间的交互。这里,我们研究了猿猴的扫视和平滑追踪眼动系统之间的相互作用。使用单一目标追踪任务,我们表明,扫视会导致扫视后追求的增强。使用双目标追踪任务,我们表明,这种增强追求是对扫视选择的目标的运动有选择性的,不管在扫视之前有什么偏见。这些实验强调了灵长类动物的扫视和平滑追踪眼球运动系统功能的相似性。重要性陈述我们使用单个和多个物体运动研究了马莫集中的平滑追踪和扫视眼球运动系统之间的协调。我们发现,向目标扫视会增加对目标的追击速度。如果多个对象可见,扫视选择使追求对扫视目标更具选择性。我们的结果表明,不同的眼球运动系统之间的协调以成功地跟踪运动物体在猿猴和灵长类动物之间是相似的。
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