Fig. 2.
Results for all VLSM analyses projected onto a template brain in neurological convention (R = right). (A) All results are thresholded at P < 0.05 (FDR) and coded in different colors. (B) Overlap ratio [(Number of significant voxels in Test A and Test B) / (Number of significant voxels in either A or B)]. This ratio quantifies the volumetric overlap in those regions significant for one task relative to another task (minimum = 0, maximum = 1). Because of the different number of significant voxels in each test (base rate), the overlap matrix is asymmetrical. (C) Scatter plot (r = −0.37, P = 0.0001) of IGT performance and the extent to which individual lesions overlap with the vmPFC. Highlighted are patients who participated in other decision making tasks along with the IGT.