Fig. 5.

Fast, hybrid, and slow responses in the SNr. a, c Show simulations of fast and slow responses with experimental data taken from [7]. b Shows a simulation and previously unpublished data for a hybrid response. Red dots indicate experimental data and blue curves are model simulations. All responses were in the SNr. The dashed horizontal line is the average baseline concentration of eht in the SNr. Parameters for the simulations are shown in Table 5 and the significance of the parameters is discussed in the text