title: Reward, motivation, and emotion of pain and its relief.
authors.affiliation: Department of Pharmacology, University of Arizona, Tucson, AZ, USA.
authors.forename: Frank
authors.initials: F
authors.lastname: Porreca
authors.forename: Edita
authors.initials: E
authors.lastname: Navratilova
mesh_terms: D004644:Emotions / Q000502:physiology*; D006801:Humans; D009042:Motivation / Q000502:physiology*; D010146:Pain / Q000503:physiopathology* / Q000523:psychology*; D012201:Reward