Huber robust regressions with behavioral responses (% of risky and safe decisions) after punishment predicting brain activation during risky and safe decision making.

Cluster significance of p Abbreviations: R, right; L, left; x, y and z: Brodmann Area (BA) coordinates; OSU, occasional stimulant users; CS; stimulant naïve comparison subjects; ACC, anterior cingulate cortex; IFG, inferior frontal gyrus; SFG, superior frontal gyrus; DLPFC, dorsolateral prefrontal cortex; negative, negative correlation between response to punishment and BOLD; positive, positive correlation between response to punishment and BOLD; PSC, percent signal change.1 Whole brain analysis.2 Risk mask analysis.In CS, no clusters survived the threshold for prediction PSC during risk taking based on % risky decisions after punishment.