Hierarchical competitions subserving multi-attribute choice.

ABSTRACT: Valuation is a key tenet of decision neuroscience, where it is generally assumed that different attributes of competing options are assimilated into unitary values. Such values are central to current neural models of choice. By contrast, psychological studies emphasize complex interactions between choice and valuation. Principles of neuronal selection also suggest that competitive inhibition may occur in early valuation stages, before option selection. We found that behavior in multi-attribute choice is best explained by a model involving competition at multiple levels of representation. This hierarchical model also explains neural signals in human brain regions previously linked to valuation, including striatum, parietal and prefrontal cortex, where activity represents within-attribute co

SUBMITTER: Hunt LT 

PROVIDER: S-EPMC4685756 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature