Figure 2.

Spike responses in a sample interneuron of the cuneate nucleus. (A) Recordings were identified as projection neurons (black traces) and interneurons (red trace) based on their characteristic spike shapes. (B) Example response of an interneuron evoked by a brief touch to the skin. (C) Response of a sample interneuron to electrical skin stimulation. Black traces indicate evoked EPSPs that did not elicit a spike whereas red traces indicate those that did.