Dynamic saccade context triggers more stable object-location binding.
Dynamic saccade context triggers more stable object-location binding.
复制标题
动态扫视上下文触发更稳定的对象位置绑定。
DOI：
10.1101/2023.04.26.538469
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Golomb,JulieD
中科院分区：
文献类型：
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作者：
Lu,Zitong;Golomb,JulieD
我们的视觉系统迅速感知和整合有关物体身份和位置的信息。关于我们是否以及如何在眼球运动中实现以世界为中心（空间定位）的物体表征存在长期争论，许多研究报告了持续的视网膜定位（以眼为中心）效应，即使是更高级别的物体位置绑定。但这些研究通常是在相当静态的实验环境中进行的。空间物体位置绑定可能只出现在更动态的扫视环境中吗？在本研究中，我们调查了这一点，在健康成人的空间一致性偏差范式。在静态（单眼扫视）的情况下，我们发现纯粹的retinotopic绑定，如前所述。然而，强大的空间位置绑定出现在动态扫视的背景下（多个频繁的扫视和刺激呈现过程中的扫视）。我们进一步分离出调节视网膜和空间结合的特异性因子。我们的研究结果提供了强有力的证据表明，动态扫视上下文可以触发更稳定的对象位置绑定在生态相关的空间坐标，也许通过一个更灵活的大脑状态，适应在动态世界中的视觉稳定性提高。（PsycInfo数据库记录（c）2024阿帕，保留所有权利）
Our visual systems rapidly perceive and integrate information about object identities and locations. There is long-standing debate about if and how we achieve world-centered (spatiotopic) object representations across eye movements, with many studies reporting persistent retinotopic (eye-centered) effects even for higher level object-location binding. But these studies are generally conducted in fairly static experimental contexts. Might spatiotopic object-location binding only emerge in more dynamic saccade contexts? In the present study, we investigated this using the spatial congruency bias paradigm in healthy adults. In the static (single-saccade) context, we found purely retinotopic binding, as before. However, robust spatiotopic binding emerged in the dynamic saccade context (multiple frequent saccades and saccades during stimulus presentation). We further isolated specific factors that modulate retinotopic and spatiotopic binding. Our results provide strong evidence that dynamic saccade context can trigger more stable object-location binding in ecologically relevant spatiotopic coordinates, perhaps via a more flexible brain state that accommodates improved visual stability in the dynamic world.(PsycInfo Database Record (c) 2024 APA, all rights reserved)