Fig. 2.

Experiment S3: Eye position of a representative subject during single runs with a fixation point (left position) (a, c) and without (b, d). Eye position is plotted for the 72 s (3 blocks) of each experimental condition and superimposed on a frame of the person-acting conditions (a, b) but not the other conditions (c, d). Although many more saccades were made when the fixation point was absent (b), the number of saccades did not differ significantly between conditions for the group of subjects: F_4,4 = 0.08, p > 0.90.