Figure 1.

Illustration of the dynamics of adaptation for exponential (dotted lines) and power-law (solid lines) models for four different time scales (0–0.1, 0–1, 0–10, and 0–100 s) in response to a unit step function. The parameters for the exponential adaptation are τ_a=0.2 s and τ_ex=0.1 s. The parameters for the power-law adaptation are α=5×10⁻⁵ and β=5×10⁻³ s. The solid curves retaining a similar shape across different time scales demonstrate the “scale-invariance” property of the power-law adaptation.