Input-output relationship of a single neurons.

To exclude the network effects, we plotted the tuning curves for the feedforward network separately for the excitatory (blue) and inhibitory (yellow) neurons. The thick line represents the median response across the neurons, which shows that their tuning curves are convex in the studied range. The shaded area shows the spread of the tuning curves across neurons (2.5 to 97.5 percentile). With low values of P_ext, the tuning curves across neurons vary significantly and are skewed to the higher firing rates.

(TIF)