Fig. 6.

Slow regenerativity makes network oscillations insensitive to extrinsic variability. Network oscillations are robust toward synaptic variability only with slow regenerativity. Left: PIR only. Right: PIR + slow regenerativity. Variability (level: 0 to 200%) in the maximal conductance of the synaptic connection, ḡ_syn. The grayscale code indicates the proportion of simulations with stable rhythmic activity out of 10 simulations. Upper and lower raster plots show membrane potentials with 80 and 110% variability, respectively. Bottom: plots of the mean frequency (bold line) and 1 SD variation (thin lines) for each variability level for the 10 simulations with oscillations.