Maij Femke, Brenner Eli, Li Hyung-Chul O, Cornelissen Frans W, Smeets Jeroen B J
Research Institute MOVE, Faculty of Human Movement Sciences, VU University, Van der Boechorststraat 9, Amsterdam, The Netherlands.
J Vis. 2010 Apr 15;10(4):7.1-9. doi: 10.1167/10.4.7.
Flashes presented around the time of a saccade are often mislocalized. Such mislocalization is influenced by various factors. Here, we evaluate the role of the saccade target as a landmark when localizing flashes. The experiment was performed in a normally illuminated room to provide ample other visual references. Subjects were instructed to follow a randomly jumping target with their eyes. We flashed a black dot on the screen around the time of saccade onset. The subjects were asked to localize the black dot by touching the appropriate location on the screen. In a first experiment, the saccade target was displaced during the saccade. In a second experiment, it disappeared at different moments. Both manipulations affected the mislocalization. We conclude that our subjects' judgments are partly based on the flashed dot's position relative to the saccade target.
扫视期间出现的闪光常常会被错误定位。这种错误定位受到多种因素的影响。在此，我们评估扫视目标作为定位闪光时的一个地标所起的作用。实验在正常照明的房间中进行，以提供充足的其他视觉参考。受试者被指示用眼睛跟踪一个随机跳动的目标。我们在扫视开始时在屏幕上闪现一个黑点。要求受试者通过触摸屏幕上的适当位置来定位黑点。在第一个实验中，扫视目标在扫视过程中发生位移。在第二个实验中，它在不同时刻消失。这两种操作都影响了错误定位。我们得出结论，我们的受试者的判断部分基于闪光圆点相对于扫视目标的位置。
