Fig. 5.

Reliability and temporal precision of single action potential induction using rectangular 5-ms current pulses in whole cell recordings. A: spike rasters for two neurons driven by rectangular 5-ms current pulses (repetition rate 0.4 Hz) at varying current amplitudes, expressed as a factor of threshold current T. Shading highlights the period of current application. B: success rate, doublet rate, spike onset latency, and spike time jitter for the two cells shown in A, as a function of current amplitude (solid lines: top; shaded lines: bottom). C and D: same as B, but for two cells driven by trains of 10 current pulses (1.3 T, repetition rate 0.2 Hz) at frequencies of 5–80 Hz (color-coded). Data in D and A (bottom row) were obtained from the same cell.