Persistent Biases in Binocular Rivalry Dynamics within the Visual Field.
Persistent Biases in Binocular Rivalry Dynamics within the Visual Field.
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DOI：
10.3390/vision1030018
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发表时间：
2017-01-01
期刊：
影响因子：
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通讯作者：
Blake, Randolph
中科院分区：
文献类型：
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作者：
Dieter, Kevin C;Sy, Jocelyn L;Blake, Randolph
双眼竞争是测量感觉眼优势的一个重要工具，感觉眼优势是个体左右眼感觉处理的相对强度。通过区分呈现缺乏相应视觉特征的图像，可以引起感知交替并测量每只眼睛图像的相对可见度。先前的研究结果表明，观察者表现出可靠的偏好的几个图像功能，这些偏见在视野内变化。然而，关于这些偏见持续存在的证据是混合的，有些人认为它们只影响发病（即，第一秒）的竞争，和其他建议在长期观看持久的影响。我们直接调查了个体在视野内对眼睛和颜色的竞争偏见，有趣的是，我们发现的结果反映了文献中有些矛盾的模式。每个观察者都对视野内的颜色和眼睛表现出独特的偏见模式，但仅对呈现的眼睛表现出一致、长期的偏见（感觉眼优势，SED）。此外，眼睛偏见的强度预测一个人的表现上的立体视觉任务。这一发现支持了双眼竞争和其他双眼视觉功能可能依赖于共享机制的观点，并强调了SED作为双眼视觉测量的重要性。
Binocular rivalry is an important tool for measuring sensory eye dominance-the relative strength of sensory processing in an individual's left and right eye. By dichoptically presenting images that lack corresponding visual features, one can induce perceptual alternations and measure the relative visibility of each eye's image. Previous results indicate that observers demonstrate reliable preferences for several image features, and that these biases vary within the visual field. However, evidence about the persistence of these biases is mixed, with some suggesting they affect only the onset (i.e., first second) of rivalry, and others suggesting lasting effects during prolonged viewing. We directly investigated individuals' rivalry biases for eye and color within the visual field and interestingly found results that mirrored the somewhat contradictory pattern in the literature. Each observer demonstrated idiosyncratic patterns of biases for both color and eye within the visual field, but consistent, prolonged biases only for the eye of presentation (sensory eye dominance, SED). Furthermore, the strength of eye biases predicted one's performance on a stereoacuity task. This finding supports the idea that binocular rivalry and other binocular visual functions m ay rely on shared mechanisms, and emphasizes the importance of SED as a measure of binocular vision.