Figure 6
Burst profiles of the neurons in the network with lateral intra-collicular connections in response to the external input current that induces different input population sizes around T = 15 deg. (a) Peak firing rates of the SC neural population. Red curve is the response to the default input current with σpop = 0.5 mm. The population grows with input size up to the default current for low input strengths (light blue), after which it remains approximately invariant (dark blue). (b) Firing rate distributions of the neural population in the motor map as function of time, normalized to the absolute firing rate of the central cell (550 spks/s). Each panel shows the result for a specific input population size (indicated in mm). Red outlined panel corresponds to the default stimulation condition (0.5 mm). Panels preceding the default show that the SC population grows with the input population; panels following the default show that the number of active neurons remains approximately constant, even though the input population size grows to the double size.
