Hebb, Andrea L O Cholecystokinin and endogenous opioid peptides: interactive influence on pain, cognition, and emotion. [electronic resource] - Progress in neuro-psychopharmacology & biological psychiatry Dec 2005 - 1225-38 p. digital Publication Type: Journal Article; Review ISSN: 0278-5846 Standard No.: 10.1016/j.pnpbp.2005.08.008 doi Subjects--Topical Terms: AnimalsCholecystokinin--physiologyCognition--physiologyEmotions--physiologyEndorphins--physiologyHumansPain--physiopathologyReceptors, Cholecystokinin--physiology