title: Trigeminal evoked potentials: origins in the cat.
abstract: Short latency brain stem (far-field) and cortical (early-field) potentials were evoked by stimulation of the main nerve epidurally over the primary sensorimotor cortex. The specific generators of these volume conducted potentials were identified from both lesion and recording studies in the trigeminal lemniscal system. Far-field components I, II and III, respectively, originate from the semilunar ganglion, trigeminal lemniscus and thalamocortical radiation; whereas early near-field components P1 and N1 originate from the cortical cell layers.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001933:Brain Stem / Q000502:physiology; D002415:Cats; D005071:Evoked Potentials; D011930:Reaction Time; D013003:Somatosensory Cortex / Q000502:physiology; D009435:Synaptic Transmission; D014276:Trigeminal Nerve / Q000502:physiology*