Figure 7. Effect of Prestimulus Alpha Phase on Decision-Related BOLD Activity.

Results of paired t-test comparing the target vs. standard contrast for negative vs. positive (trough vs. peak) and waxing vs. waning alpha phase at stimulus onset. Results shown were per-voxel thresholded at p < 0.005 then cluster-thresholded at p < 0.05 and are displayed in radiological orientation on an MNI template brain. z coordinates are specified.