Attentional tracking takes place over perceived rather than veridical positions
Attentional tracking takes place over perceived rather than veridical positions
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DOI：
10.3758/s13414-020-02214-9
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发表时间：
2021-01-05
影响因子：
1.7
通讯作者：
Tse, Peter U.
中科院分区：
文献类型：
--
作者：
Maechler, Marvin R.;Cavanagh, Patrick;Tse, Peter U.
错觉会导致感知和视网膜输入之间的显着差异。例如，具有移动内部纹理的静态 Gabor 似乎在其内部运动方向上发生了偏移，当 Gabor 本身也在运动时，这种偏移会急剧增加。在这里，我们询问注意力是否作用于这种刺激的感知或物理位置。为此，我们生成了一个注意力跟踪任务，其中参与者（N = 15）必须跟踪围绕外围共同中心旋转的三个 Gabor 中的单个目标。在跟踪过程中，幻觉被用来使三个加博看起来要么彼此远离或靠近，同时保持相同的物理距离。由于跟踪性能部分取决于目标与干扰物的间距，因此如果注意力从感知位置选择目标，那么当 Gabor 看起来距离较远时，性能应该会更好，而当 Gabor 看起来距离较近时，性能应该会更差。我们发现，感知分离越大，跟踪性能越佳，这意味着注意力跟踪是在感知位置而不是物理位置上进行的。
Illusions can induce striking differences between perception and retinal input. For instance, a static Gabor with a moving internal texture appears to be shifted in the direction of its internal motion, a shift that increases dramatically when the Gabor itself is also in motion. Here, we ask whether attention operates on the perceptual or physical location of this stimulus. To do so, we generated an attentional tracking task where participants (N = 15) had to keep track of a single target among three Gabors that rotated around a common center in the periphery. During tracking, the illusion was used to make three Gabors appear either shifted away from or toward one another while maintaining the same physical separation. Because tracking performance depends in part on target to distractor spacing, if attention selects targets from perceived positions, performance should be better when the Gabors appear further apart and worse when they appear closer together. We find that tracking performance is superior with greater perceived separation, implying that attentional tracking operates over perceived rather than physical positions.