Positive and negative hysteresis effects for the perception of geometric and emotional ambiguities - Fig 5

Procedures of Experiments 1 (top) and 2 (bottom). Each stimulus variant was presented for 1200 ms, followed by a screen showing either a gray background similar to the background of the Mona Lisa stimulus (Experiment 1) or a dark gray background identical to the background darkness of the lattice stimuli. S = stimulus, G = gap.