Transsaccadic perceptual fusion.
Transsaccadic perceptual fusion.
复制标题
跨眼跳知觉融合。
作者：
Céline Paeye;T. Collins;P. Cavanagh
跨扫视感知融合是将扫视前和扫视后的图像整合成在空间坐标上对齐的单个感知。几项早期的研究报告了不同模式之间缺乏跨扫视融合，有效地阻止了对这个问题的研究长达三十年。我们现在已经纠正了这些早期研究中存在的两个问题，并找到了跨眼视知觉融合的有力证据。首先，我们使用了简单的扫视前和扫视后目标，（|，），其中空间对准不是关键的。其次，我们降低了眼跳后刺激的对比度，这样它就不会抑制融合。参与者报告说，在67%的试验中看到了扫视前和扫视后目标的叠加。重要的是，当两种刺激在没有干预眼球运动的情况下呈现时，我们获得了类似的结果，这表明存在一般的融合机制。扫视条件下的方向偏差表明，重新映射可能是重新调整前和后扫视位置的机制。因此，重映射不仅可以预测在扫视之后目标将位于何处，而且还可以引导内容，预测目标将看起来像什么。然而，对融合知觉外观的限制表明，它在跳视过程中的视觉稳定性方面充其量发挥的作用有限。
Transsaccadic perceptual fusion is the integration of pre- and postsaccadic images into a single percept aligned in spatial coordinates. Several early studies reported an absence of transsaccadic fusion between dissimilar patterns, effectively stopping research on this question for three decades. We have now corrected two problematic aspects of these earlier studies and find robust evidence for transsaccadic perceptual fusion. First, we used simple pre- and postsaccadic targets, (|, ) for which spatial alignment is not critical. Second, we reduced the contrast of the postsaccadic stimulus, so that it would not suppress fusion. Participants reported seeing a superposition of the pre- and postsaccadic targets on 67% of trials. Importantly, we obtained similar results when the two stimuli were presented without an intervening eye movement, suggesting the existence of a general fusion mechanism. Directional biases in the saccade condition suggest that remapping might be the mechanism realigning the pre- and postsaccadic locations. Remapping may thus not only predict where targets will be located after a saccade but may also guide content, predicting what targets will look like. However, the constraints on the appearance of the fused percept suggest that it plays, at best, a limited role in visual stability across saccades.
影响因子：
19.9
作者：
Zirnsak, Marc;Moore, Tirin
通讯作者：
Moore, Tirin
感觉运动适应误差信号源自对运动结果的实际预测。
影响因子：
2.5
作者：
Wong,AaronL;Shelhamer,Mark
通讯作者：
Shelhamer,Mark