DYK #15: Does our perception fool us?

First, look at the following pictures: …You probably noticed you can’t count the black dots, because in fact, there aren’t any. Kudos if you saw that the top lines of the trapezoids are equally large. Most people think the top trapezoid’s top line is larger! Images like these always make me wonder whether what we perceive (by processing sensory information) is true or not. (Have you ever played Guitar Hero? Afterwards, did you notice that wherever you looked, it seemed like the world was “floating away”?) This video explains the psychology of perception brilliantly. Please share your thoughts on human perception and what your experiences are! Download article as PDF ...