Figure 4. Event-related averages, V2-V3a.

A, D, G) Examples of activation maps from the ROI localizer scan. The activity clusters represent voxels sensitive to the stimulus position in the upper right visual field (thresholded at FDR <0.01). The resulting ROIs were defined as active voxels overlapping with the different visual areas. B, E, H) Event-related averages from the participants’ V2, V3, V4 and V3a ROIs in Experiment 1. The data shown here were extracted from ROIs defined as voxels from the localizer data surviving a FDR <0.01 threshold (similar to Figure 3). C, F, I) Event-related averages from Experiment 2, extracted from the same V2-V3a ROIs as for Experiment 1. Since stimulus S₁ and S₂ were presented to the opposite position of stimulus F₁ and F₂, the curves only represent the activity from ROIs coding for the F₁/F₂-positions.