When you see a display like that, what you assume is there's a bar there, and what that means is there's something in the middle that you've never seen before.

当你看到这样的演示时,你已经假定那里有一根木杆,也就是说中间的部分,有你之前所未曾见过的物体

耶鲁公开课 - 心理学导论课程节选