Figure 11.

The single-integrator model. The version presented here is based on an earlier depiction (Hernandez et al., 2010) but incorporates expressions for the frequency response of the directly stimulated neurons (Equation 4) and for the subjective-price function (Equation 3). The numbering of the graphical elements in the diagram indexes the equations. The following table relates the index numbers in Figure 11 to the equation numbers in the main text and appendix.

Equation number in Figure 11	Corresponding manuscript section	Manuscript equation number
1	The Extended Reward Mountain Model	4
2	The dual integrator model, Appendix	5, A.1, A.9
3	Appendix	A.10
4	The Extended Reward Mountain Model	3
5	Appendix	A.4
6	Appendix	A.5