Figure 4.

Panel (a) shows exemplar stimuli for one‐, two‐, and fourfold 100% coherence symmetry. Panels (b) and (c) show the fMRI results for the passive viewing and symmetry detection experiments, respectively. Visual areas are labeled on the abscissa and percent signal change is shown on the ordinate. Responses to the onefold stimuli are represented by white bars, twofold stimuli by grey bars, and fourfold stimuli by black bars. Error bars show ± SEM. Asterisks indicate a significant linear trend