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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: Pharmacol Biochem Behav. 2017 Sep 21;164:4–21. doi: 10.1016/j.pbb.2017.09.009

Figure 2.

Figure 2

Diagram of key brain structures in dual-systems models (Bechara, 2005)

CAPTION: A diagram of key brain structures comprising the impulsive system (red) and reflective/executive system (purple). Note that in this figure, the insula is identified with the executive/reflective system. However, in the competing neurobehavioral decision systems theory, the insula is identified with the impulsive system and in the triadic theory, the insula is considered a distinct component, the third system of the decisional triad. AC=anterior cingulate cortex; DA=dopamine; 5-HT=serotonin; Hip=hippocampus; A=amygdala; VMPC=ventromedial prefrontal cortex; DLPC = dorsolateral prefrontal cortex.