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首页> 外文期刊>Journal of vision >Flash suppression and flash facilitation in binocular rivalry
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Flash suppression and flash facilitation in binocular rivalry

机译：双目竞争中的闪光抑制和闪光促进

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We show that previewing one half image of a binocular rivalry pair can cause it to gain initial dominance when the other half is added, a novel phenomenon we term flash facilitation. This is the converse of a known effect called flash suppression, where the previewed image becomes suppressed upon rivalrous presentation. The exact effect of previewing an image depends on both the duration and the contrast of the prior stimulus. Brief, low-contrast prior stimuli facilitate, whereas long, high-contrast ones suppress. These effects have both an eye-based component and a pattern-based component. Our results suggest that, instead of reflecting two unrelated mechanisms, both facilitation and suppression are manifestations of a single process that occurs progressively during presentation of the prior stimulus. The distinction between the two phenomena would then lie in the extent to which the process has developed during prior stimulation. This view is consistent with a neural model previously proposed to account for perceptual stabilization of ambiguous stimuli, suggesting a relation between perceptual stabilization and the present phenomena.
机译：我们显示，预览双目竞争对的一半图像可以使它在添加另一半图像时获得最初的支配地位，这是一种新颖的现象，我们称之为闪光促进。这与称为“闪光抑制”的已知效果相反，在这种效果下，预览图像在相互竞争时会被抑制。预览图像的确切效果取决于历时刺激的持续时间和对比度。短暂的，低对比度的先前刺激会促进，而长时间的，高对比度的刺激会抑制。这些效果同时具有基于眼睛的成分和基于模式的成分。我们的研究结果表明，促进和抑制并没有反映两个不相关的机制，而是单个过程的表现，该过程在先前刺激的呈现过程中逐渐发生。那么，两种现象之间的区别将在于该过程在先前刺激期间已经发展到的程度。该观点与先前提出的用于解释模棱两可的刺激的感知稳定的神经模型相一致，这暗示了感知稳定与当前现象之间的关系。

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