Descending control of painMark J MillanDepartment of Psychopharmacology, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy Seine, Paris, FranceProg Neurobiol 66:355-474. 2002Upon receipt in the dorsal horn (DH) of the spinal cord, nociceptive (pain-signalling) information from the viscera, skin and other organs is subject to extensive processing by a diversity of mechanisms, certa