Fig 3. Effect of adaptation current timescale on reproduction accuracy.

Performance measures and population spike rate statistics (cf. Fig 2A and 2B) as a function of the adaptation time constant τ_w, that takes values between 20 ms (equal to the membrane time constant) and 200 ms (used throughout the rest of the study). The spike-triggered adaptation increment b was co-varied (antiproportional to τ_w) such that the product τ_w b = 8 pAs is fixed for all shown parametrizations. The input mean μ_ext(t) fluctuates with timescale ${\tau }_{\text{ou}}^{\mu }=50\text{ms}$ and strength ϑ_μ = 0.54 mV/ms (same value as for examples in Fig 2C) around a smaller (A) and a larger (B) baseline mean $\overline{\mu }$, while the input deviation σ_ext is constant. Note that the rightmost parametrization of A corresponds to Fig 2C (top example) and is contained in Fig 2A (bottom right) while that of B is shown in Fig 2A (bottom left).