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首页> 外文期刊>Current directions in psychological science: a journal of the American Psychological Society >New Light on the Mind's Eye: The Pupillary Light Response as Active Vision
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New Light on the Mind's Eye: The Pupillary Light Response as Active Vision

机译：心灵的新光：作为主动视觉的瞳孔光响应

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摘要

The eye's pupils constrict (shrink) in brightness and dilate (expand) in darkness. The pupillary light response was historically considered a low-level reflex without any cognitive component. Here, we review recent studies that have dramatically changed this view: The light response depends not only on a stimulus's brightness but also on whether you are aware of the stimulus, whether you are paying attention to it, and even whether you are thinking about it. We highlight the link between the pupillary light response and eye-movement preparation: When you intend to look at a bright stimulus, a pupillary constriction is prepared along with the eye movement before the eyes set in motion. This preparation allows the pupil to rapidly change its size as your eyes move from bright to dark objects and back again. We discuss the implications of these recent advances for our understanding of the subtle yet important role that pupillary responses play in vision.
机译：眼睛的瞳孔在黑暗中会收缩（收缩），在黑暗中会扩张（扩展）。历史上，瞳孔光反应被认为是低水平反射，没有任何认知成分。在这里，我们将回顾最近的研究，这些研究极大地改变了这种观点：光响应不仅取决于刺激的亮度，还取决于您是否意识到刺激，是否关注它，甚至是否正在考虑它。 。我们强调瞳孔光反应与眼睛运动准备之间的联系：当您打算观察明亮的刺激时，在眼睛运动之前，就准备了瞳孔收缩以及眼睛运动。这种准备可以使瞳孔随着您的眼睛从明亮的物体移动到黑暗的物体并再次返回而迅速改变其大小。我们讨论了这些最新进展对我们理解瞳孔反应在视觉中起着微妙而重要作用的意义。

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