Fig. 5.

Slow regenerativity makes network oscillations insensitive to intrinsic variability. Network oscillations are robust toward intrinsic variability only with slow regenerativity. Left: PIR only. Right: PIR + slow regenerativity. Variability (level: 0 to 200%) is indicated in the maximal conductance of the PIR current, ḡ_PIR. The grayscale code indicates the proportion of simulations with stable rhythmic activity out of 10 simulations. From upper to lower, raster plots show 0, 20, and 140% variability, respectively. Bottom: plots of the mean frequency (mean freq.; bold line) and 1 standard deviation (SD) variation (thin lines) for each variability level (var%) for the 10 simulations with oscillations.