fMRI linear mixed effects results for the group (OSU, CS) by decision (win risky vs. win safe) interaction (n = 208)

Cluster significance of p 1,156 = 3.89).Abbreviations: R, right; L, left; x, y and z: Brodmann Area (BA) coordinates; OSU, occasional stimulant users; CS; stimulant naïve comparison subjects; BA, Brodmann Area; IFG, inferior frontal gyrus; ACC, anterior cingulate cortex. Within each group, percent signal change for all Win Risky decisions was greater than Win Safe decisions.1 Whole brain analysis.2 Risk mask analysis..