When participants look at a specific location, the area they are looking at is marked by a circle. The longer the area was fixated, the bigger the circle gets. In the end, a series of numbered circles visualize the movements of the eye. Thereby, different colors represent the eye movements of different participants. Between the circles, the eye jumps. This jump is called saccade. During saccades, humans cannot see, but because these eye movements are very fast, humans are not aware of it.