title: Tonic descending influences on cat spinal cord dorsal horn neurons.
abstract: The extent and nature of tonic supraspinal influences was determined on cat spinal cord dorsal horn neurons that received both noxious (radiant heat) and nonnoxious (hair movement) inputs or only a nonnoxious input. The former cells receive a tonic inhibition that descends in the dorsolateral funiculi and which is selective for the noxious input. The latter neurons are under a tonic facilitation.
mesh_terms: D000818:Animals; D002415:Cats; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006358:Hot Temperature; D008297:Male; D008465:Mechanoreceptors / Q000502:physiology; D009433:Neural Inhibition; D009475:Neurons, Afferent / Q000502:physiology*; D009619:Nociceptors / Q000502:physiology; D010812:Physical Stimulation; D013116:Spinal Cord / Q000502:physiology*