Average deconvolved responses (relative to correct go trials) as a function of trial type in the right inferior parietal lobe (R IPL; A), right putamen (C), and left putamen (E). Average stop-trial differential activation as a function of condition in the right IPL (B), right putamen (D), and left putamen (F). The brain insets indicate the position of the ROIs. Error bars indicate standard within-subject errors (Loftus and Masson, 1994). C: control; R: reward; succ: successful stop trial; unsucc: unsuccessful stop trial;