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. 2011 Jul 20;106(5):2201–2215. doi: 10.1152/jn.00519.2011

Fig. 10.

Fig. 10.

Connections between the rear and the middle premotor HN interneurons. A: extracellular recording from the HN(L,7) interneuron during simultaneous intracellular recording from the rear HN(L,16) interneuron. The barrages of excitatory postsynaptic potentials (EPSPs) seen during bursting in the rear HN interneuron coincide with spikes in the HN(7) interneuron as seen in the spike-triggered averages (B). C: same preparation as in A with the HN(16) now in voltage clamp. Holding potential: −50 mV. The barrages of excitatory postsynaptic currents (EPSCs) in the rear HN interneuron coincide with spikes in the HN(7) interneuron as seen in the spike-triggered averages (D). The long latencies (B and D) reflect the conduction delays over the distance of 9 segments.