Hunt Amelia R, Reuther Josephine, Hilchey Matthew D, Klein Raymond M
University of Aberdeen, Aberdeen, UK.
University of Toronto, Toronto, ON, Canada.
Curr Top Behav Neurosci. 2019;41:255-278. doi: 10.1007/7854_2019_95.
The nature of the relationship between spatial attention and eye movements has been the subject of intense debate for more than 40 years. Two ideas have dominated this debate. First is the idea that spatial attention shares common neural mechanisms with eye movement programming, characterizing attention as an eye movement that has been prepared but not executed. Second, based on the observation that attention shifts to saccade targets, several theories have proposed that saccade programming necessarily recruits attentional resources. In this chapter, we review the evidence for each of these ideas and discuss some of the limitations and challenges in confirming their predictions. Although they are clearly dependent under some circumstances, dissociations between spatial attention and eye movements, and clear differences in their basic functions, point to the existence of two interconnected, but separate, systems.
空间注意力与眼动之间关系的本质，在过去40多年里一直是激烈争论的主题。两种观点主导了这场争论。第一种观点认为，空间注意力与眼动编程共享共同的神经机制，将注意力表征为一种已经准备好但未执行的眼动。第二种观点基于注意力会转移到扫视目标这一观察结果，提出扫视编程必然会调用注意力资源。在本章中，我们回顾了支持每种观点的证据，并讨论了在证实其预测方面的一些局限性和挑战。尽管它们在某些情况下显然相互依存，但空间注意力与眼动之间的分离，以及它们基本功能上的明显差异，都表明存在两个相互关联但又相互独立的系统。
