title: Neural predictors of purchases.
abstract: Microeconomic theory maintains that purchases are driven by a combination of consumer preference and price. Using event-related fMRI, we investigated how people weigh these factors to make purchasing decisions. Consistent with neuroimaging evidence suggesting that distinct circuits anticipate gain and loss, product preference activated the nucleus accumbens (NAcc), while excessive prices activated the insula and deactivated the mesial prefrontal cortex (MPFC) prior to the purchase decision. Activity from each of these regions independently predicted immediately subsequent purchases above and beyond self-report variables. These findings suggest that activation of distinct neural circuits related to anticipatory affect precedes and supports consumers' purchasing decisions.
authors.affiliation: Psychology and Neuroscience, Stanford University, Building 420, Jordan Hall, Stanford, CA 94305, USA.
authors.forename: Brian
authors.initials: B
authors.lastname: Knutson
authors.forename: Scott
authors.initials: S
authors.lastname: Rick
authors.forename: G Elliott
authors.initials: GE
authors.lastname: Wimmer
authors.forename: Drazen
authors.initials: D
authors.lastname: Prelec
authors.forename: George
authors.initials: G
authors.lastname: Loewenstein
mesh_terms: D000293:Adolescent; D000328:Adult; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000033:anatomy & histology / Q000502:physiology*; D003657:Decision Making / Q000502:physiology*; D004467:Economics; D004644:Emotions / Q000502:physiology*; D005239:Fear / Q000502:physiology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009434:Neural Pathways / Q000033:anatomy & histology / Q000502:physiology; D009714:Nucleus Accumbens / Q000033:anatomy & histology / Q000502:physiology*; D011237:Predictive Value of Tests; D017397:Prefrontal Cortex / Q000033:anatomy & histology / Q000502:physiology*; D012201:Reward; D012309:Risk-Taking