Identification using glass microelectrodes of the activities recorded in the neighborhood of axons and cell bodies of the trigeminal sensory complex]

Using glass micropipettes unitary activities were recorded at the level of the trigeminal sensory complex. Iontophoresis of pontamine blue allowed us to localise the recording loci. Two types of spikes were observed, they were distinguished on the basis of their shape: one corresponds to an axon spike, the other to a cell body spike.