Uncovering the Common Neural Currency via Generalized Whole-Brain Predictors of Value

Lee, S., et al. (growing list of authors)

The neural currency hypothesis posits that our brain represents various subjective valuations using a common scale. To date, numerous studies have identified few key brain regions whose activity correlates with subjective value in various tasks. However, as demonstrated in other fields, sharing a common region does not dictate common computation. Furthermore, we still know very little about how the whole brain renders decisions based on these well-known ‘subjective value regions’. We answer both questions simultaneously by constructing a generalized whole-brain multivariate predictor of value across large datasets of different reward modalities and tasks including intertemporal choice, risky choice, attractive faces, attractive places, consumer purchases, food item purchases, etc.