Much evidence suggests that we first perceive the overall layout of a scene or object followed later by the details. This coarse-to-fine temporal dynamic in visual processing is also found in Navon's classical paradigm where information at the global level of compound stimuli is processed faster than information at the local level (global precedence effect), and where information at the global level has larger effects on local level responses than local level information has on global level responses (asymmetric interference effects). Traditionally, global shape primacy in Navon's paradigm has been linked with a right hemisphere preference (left visual field advantage) for global shape processing, and a left hemisphere preference (right visual field advantage) for local shape processing. This link, however, has been based on measures which confound global precedence and interference effects. Indeed, when these measures are de-confounded, we find no evidence for larger global precedence effects in the left compared with the right visual field in a large sample of participants (N = 337). In comparison, global-to-local interference effects are found to be stronger in the left than in the right visual field. We argue that these findings can be accounted for by assuming that the right hemisphere plays a special role in integrating shape information across spatial scales, that is, without assuming the existence of a right hemisphere preference for global shape processing per se.

中文翻译：

---

谁拥有全球优势？全局和局部形状处理中的视野差异。

许多证据表明，我们首先要感知场景或对象的总体布局，然后才是细节。Navon的经典范式还发现了视觉处理中这种从粗到细的时间动态，其中复合刺激的全局级别的信息处理速度比局部级别的信息（全局优先效应）的处理速度快，而全局级别的信息具有更快的处理速度。与本地级别信息对全局级别响应的影响相比，对本地级别响应的影响更大（非对称干扰效应）。传统上，Navon范式中的全局形状优先权与用于全局形状处理的右半球偏好（左视野优势）和用于局部形状处理的左半球偏好（右视野优势）相关联。但是，此链接 一直基于混淆全球优先权和干扰影响的措施。的确，当这些措施被混淆时，我们没有证据表明在大量参与者中，左侧的视野优先权大于右侧的视野（N = 337）。相比之下，发现全局到局部的干扰效果在左侧比在右侧视野更强。我们认为，可以通过假设右半球在整合跨空间尺度的形状信息中发挥特殊作用来解释这些发现，也就是说，无需假设对于整个形状处理本身就存在右半球的偏好。在大量参与者中，我们没有发现比右侧视野更大的全局优先效应的证据（N = 337）。相比之下，发现全局到局部的干扰效果在左侧比在右侧视野更强。我们认为，可以通过假设右半球在整合跨空间尺度的形状信息中发挥特殊作用来解释这些发现，也就是说，无需假设存在对整体形状处理本身的右半球偏好。在大量参与者中，我们没有发现比右侧视野更大的全局优先效应的证据（N = 337）。相比之下，发现全局到局部的干扰效果在左侧比在右侧视野更强。我们认为，可以通过假设右半球在整合跨空间尺度的形状信息中发挥特殊作用来解释这些发现，也就是说，无需假设存在对整体形状处理本身的右半球偏好。