Figure 1.

Methods. A, Schematic of the visual stimuli used throughout the experiments. Moving dots with a given coherence (percentage of dots moving either to the left or the right with the remainder moving with random directions) were presented in a 5° × 5° of visual angle aperture on a black screen for 200 ms. The coherence of dot motion remained constant across trials and equal numbers of trials with leftward or rightward motion were presented. B, Each trial consisted of a visual stimulus (at time 0) and a TMS pulse (lightening bolt) that was presented before, coincident with (Experiments 1 and 2), or after (Experiment 2 only) the onset of the visual stimulus. Dots appeared randomly on the nonoverlapping or overlapping visual space. C, Single session in Experiment 2.