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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Biol Psychiatry. 2012 Sep 26;73(3):235–241. doi: 10.1016/j.biopsych.2012.08.018

Figure 5.

Figure 5

Predominantly prescription/predominantly cocaine group (PPU, PCU, CTL) by decision time (early trials, late trials) interaction results depicting that predominantly cocaine users (PCU) exhibited greater anterior insula and inferior frontal gyrus (IFG) activation than predominantly prescription stimulant users (PPU) and control subjects (CTL) during late trials when reward contingencies were being executed. PCU also displayed greater dorsal striatum activation than CTL. Error bars reflect standard error.