Department of Psychology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan.
Department of Psychology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Conscious Cogn. 2023 Nov;116:103604. doi: 10.1016/j.concog.2023.103604. Epub 2023 Nov 16.
Through the neurally evolving process of dynamic contextual modulation of perceptual contents, it remains unclear how the content of awareness is determined. Here we quantified the visual illusion of orientation repulsion, wherein the target appears tilted against the surrounding's orientation, and examined whether its extent changed when the target awareness was quickened by a preceding flanker. Independently of spatial cueing, repulsion was reduced when the flanker preceded the target by 100 ms compared with when they appeared simultaneously. We confirmed that the preceding flanker quickened the awareness of a nearby target relative to distant ones by 40 ms. Furthermore, the preceding flanker that was greater than 7 degrees away from the target still evoked such reduction of repulsion. These findings imply that the content of awareness is determined by the temporal interaction of two distinct processes: one controls the moment of awareness, and the other represents the perceptual content.
通过神经进化过程中的动态上下文对感知内容的调制，意识内容是如何确定的仍不清楚。在这里，我们量化了方向排斥的视觉错觉，其中目标相对于周围的方向显得倾斜，并研究了当目标意识被前面的侧抑制提前时，其程度是否会发生变化。独立于空间提示，当侧抑制比目标提前 100 毫秒出现时，排斥程度会降低。我们证实，相对于远处的目标，前面的侧抑制会使附近目标的意识提前 40 毫秒。此外，距离目标超过 7 度的前面的侧抑制仍然会引起这种排斥的减少。这些发现表明，意识的内容是由两个不同过程的时间相互作用决定的：一个控制意识的时刻，另一个代表感知内容。
