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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Curr Opin Behav Sci. 2018 Jan 4;22:28–34. doi: 10.1016/j.cobeha.2017.12.011

Figure 2.

Figure 2

MF actions will dominate unless both striatal DA tone is high, and the relative proximity advantage of MF actions is small, supporting more MB action. The surface was plotted according to Eqns. 1—3 assuming action weights that vary symmetrically as a function of striatal DA: βG = 1 − ε −DA and βN = ε −DA.