title: The Placebo Effect creator: Humphrey, Nicholas subject: Clinical Psychology subject: Evolutionary Psychology description: no abstract publisher: Oxford University Press contributor: Gregory, Richard L. date: 2002 type: Book Chapter type: NonPeerReviewed format: text/html identifier: http://cogprints.org/2046/1/CompanionPlacebo.htm identifier: Humphrey, Nicholas (2002) The Placebo Effect. [Book Chapter] (Unpublished) relation: http://cogprints.org/2046/