title: Subjective socioeconomic status predicts human ventral striatal responses to social status information.
abstract: The enormous influence of hierarchical rank on social interactions [1] suggests that neural mechanisms exist to process status-related information [2] and ascribe value to it. The ventral striatum is prominently implicated in processing value and salience, independent of hedonic properties [3, 4], and a functional magnetic resonance imaging (fMRI) study of social status perception in humans demonstrated that viewing higher-ranked compared to lower-ranked individuals evokes a ventral striatal response [5], indicative of a greater assignment of value/salience to higher status. Consistent with this interpretation, nonhuman primates value information associated with higher-ranked conspecifics more than lower-ranked, as illustrated using a choice paradigm in which monkeys preferentially take the opportunity to view high-status monkeys [6]. Interestingly, this status-related value assignment in nonhuman primates is influenced by one's own hierarchical rank: high-status monkeys preferentially attend to conspecifics of high status, whereas low-status monkeys will also attend to other low-status monkeys [7]. Complementary to these findings, using fMRI and a social status judgment task in humans, we suggest a neurobiological mechanism by which one's own relative hierarchical rank influences the value attributed to particular social status information by demonstrating that one's subjective socioeconomic status differentially influences ventral striatal activity during processing of status-related information.
authors.affiliation: Genes, Cognition and Psychosis Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA.
authors.forename: Martina
authors.initials: M
authors.lastname: Ly
authors.forename: M Ryan
authors.initials: MR
authors.lastname: Haynes
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Barter
authors.forename: Daniel R
authors.initials: DR
authors.lastname: Weinberger
authors.forename: Caroline F
authors.initials: CF
authors.lastname: Zink
mesh_terms: D000328:Adult; D001479:Basal Ganglia / Q000502:physiology*; D004219:District of Columbia; D005260:Female; D006608:Hierarchy, Social; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008606:Mental Processes / Q000502:physiology*; D012923:Social Class