A fresh look at interocular grouping during binocular rivalry
A fresh look at interocular grouping during binocular rivalry
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DOI：
10.1016/j.visres.2003.12.007
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发表时间：
2004-05-01
期刊：
影响因子：
1.8
通讯作者：
Blake, R
中科院分区：
文献类型：
--
作者：
Lee, SH;Blake, R
在双目竞争期间，观察者有时会感知到一个完整的视觉对象，即使那个感知上占主导地位的对象的组成部分特征分布在两只眼睛之间，并且与其他不同的特征竞争。这种眼球间的分组不能用竞争模型来解释，在这种模型中，一只眼睛或另一只眼睛在任何给定的时刻都完全占据主导地位。但也许全球眼球间分组是通过同时的局部眼优势实现的，其中一只眼的部分视野和另一只眼的互补部分同时成为主导。为了测试这种可能性，我们进行了两个实验，使用相对较大、复杂的数字作为竞争目标。在一项实验中，我们使用了一种“眼睛交换”技术来证实，在给定的局部空间竞争区域中，通常占主导地位的是眼睛的区域，而不是给定的刺激特征。在第二个实验中，我们测量了多个局部竞争区域的支配地位持续时间，然后创建了一个1分钟的全球“蒙太奇”动画，其中局部地区的支配地位由经验测量的支配地位分布控制。这些动画包括明显的全球眼间分组的重要时间段；观察者观看这些动画与实际的竞争显示混合在一起，所产生的跟踪数据证实了这两种显示类型在全球主导地位上的相似性。因此，竞争中的眼间分组并不排除局部的、基于眼睛的竞争，尽管协同和自上而下的影响几乎肯定会在促进眼间分组方面提供额外的力量。(C)2004爱思唯尔有限公司。保留所有权利。
During binocular rivalry, observers sometimes perceive one complete visual object even though component features of that perceptually dominant object are distributed between the two eyes and are in rivalry against other, dissimilar features. This interocular grouping cannot be explained by models of rivalry in which one eye or the other is completely dominant at any given moment. But perhaps global interocular grouping is achieved by simultaneous local eye dominance, wherein portions of one eye's view and complementary portions of the other eye's view become dominant simultaneously. To test this possibility, we performed two experiments using relatively large, complex figures as rival targets. In one experiment we used an "eye-swap" technique to confirm that within given, local spatial regions of rivalry it was the region of an eye-not a given stimulus feature-that was usually dominant. In a second experiment, we measured dominance durations for multiple, local zones of rivalry and then created 1-min animations of a global "montage" in which dominance within local regions was governed by the distributions of dominance measured empirically. These animations included significant periods of time during which global interocular grouping was evident; observers viewed these animations intermixed with actual rivalry displays, and the resulting tracking data confirmed the similarity in global dominance of the two display types. Thus interocular grouping during rivalry does not rule out local, eye-based rivalry, although synergistic and top-down influences almost certainly provide additional force in the promotion of interocular grouping. (C) 2004 Elsevier Ltd. All rights reserved.