Fig. 3

Adaptation and firing rate curves. (A) The unadapted f–I curve (\(f_{0}(I)\); solid) and the steady-state adapted firing rate curve with \(s = 22\) (\(f_{\infty}(I)\); dashed). (B)–(D): Adaptation in response to a step of I from 0 to 5 after equilibration with adaptation turned off. (B) x; (C) z; (D) frequency obtained as reciprocal of interspike interval