Figure 3. Dynamical properties of LP neurons from 6 lobster preparations.

All properties are measured during 20 s constant DC current injections I_DC of different levels (x axes). A) Average ISI of spikes within bursts, B) intervals between the end of a burst to the beginning of the next burst (inter-burst interval, IBI), C) Burst duration and D) burst frequency as measured from burst onset to burst onset. All properties exhibit a fair amount of variability between preparations while the general trend of the dependence on current injection is better conserved. The intra-burst ISI increases with I_DC up to I_DC = 0 nA, then decreases, the IBI decreases with increasing I_DC, and the burst duration increases with increasing I_DC. The burst frequency does not show a very clear trend.