Attention in Active Vision: A Perspective on Perceptual Continuity Across Saccades
Attention in Active Vision: A Perspective on Perceptual Continuity Across Saccades
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DOI：
10.1177/0301006615594965
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发表时间：
2015-08
期刊：
影响因子：
1.7
通讯作者：
M. Rolfs
中科院分区：
文献类型：
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作者：
M. Rolfs
阿尔弗雷德湖Yarbus是最早证明眼球运动积极地服务于我们的感知和认知目标的人之一，这是当今主动视觉研究的核心。他意识到，在记忆中，并不是固定的变化，而是注意力转移的变化。事实上，眼球控制与注意力和记忆力等基本功能紧密相连。这种紧密的关系提供了一个有趣的视角，跨扫视知觉的连续性，我们的经验，尽管事实上，扫视导致快速转移的图像在视网膜上。在这里，我阐述了这一观点的基础上，一系列的心理物理学的发现。首先，眼跳准备塑造视觉系统的优先级，它提高了视觉表现和感知刺激强度的目标眼动。其次，在扫视之前，视觉注意力的部署被更新，预测性地促进一旦眼睛着陆就将相关的那些视网膜位置处的感知。第三，扫视眼球运动强烈地影响视觉记忆的内容，突出了它们对我们记住或忘记场景的哪些部分的关键作用。总之，这些结果提供了关于注意过程如何使视觉系统能够科普扫视的视网膜后果的见解。
Alfred L. Yarbus was among the first to demonstrate that eye movements actively serve our perceptual and cognitive goals, a crucial recognition that is at the heart of today’s research on active vision. He realized that not the changes in fixation stick in memory but the changes in shifts of attention. Indeed, oculomotor control is tightly coupled to functions as fundamental as attention and memory. This tight relationship offers an intriguing perspective on transsaccadic perceptual continuity, which we experience despite the fact that saccades cause rapid shifts of the image across the retina. Here, I elaborate this perspective based on a series of psychophysical findings. First, saccade preparation shapes the visual system’s priorities; it enhances visual performance and perceived stimulus intensity at the targets of the eye movement. Second, before saccades, the deployment of visual attention is updated, predictively facilitating perception at those retinal locations that will be relevant once the eyes land. Third, saccadic eye movements strongly affect the contents of visual memory, highlighting their crucial role for which parts of a scene we remember or forget. Together, these results provide insights on how attentional processes enable the visual system to cope with the retinal consequences of saccades.