Kanari Kei
J Opt Soc Am A Opt Image Sci Vis. 2020 Mar 1;37(3):361-367. doi: 10.1364/JOSAA.379598.
Pupil size is modulated not only by the luminance at the eye position but also by that at the attended location. This study aims to examine whether pupil changes also correspond to the luminance at the spatial location to which the attention is shifted in optokinetic nystagmus. The test stimulus consisted of randomly positioned dots that moved to the left or to the right on a display screen that was bright on one side of the centerline and dark on the other. The results show that pupil size changes in accordance with the luminance at the location to which participants' attention shifts as a result of optokinetic nystagmus (i.e., eye movements in the direction opposite to that of the motion stimulus). This study suggests that pupil size is modulated by the luminance at the location to which attention shifts through unidirectional field motion.
瞳孔大小不仅受眼睛位置处的亮度调节，还受所关注位置处的亮度调节。本研究旨在检验在视动性眼球震颤中，瞳孔变化是否也与注意力转移到的空间位置处的亮度相对应。测试刺激由随机放置的点组成，这些点在显示屏上向左或向右移动，显示屏中心线一侧亮，另一侧暗。结果表明，瞳孔大小会随着参与者因视动性眼球震颤（即眼球向与运动刺激相反方向的运动）而注意力转移到的位置处的亮度而变化。本研究表明，通过单向视野运动，注意力转移到的位置处的亮度会调节瞳孔大小。
