The Role of Dopamine in Value-Based Attentional Orienting.

ABSTRACT: Reward learning gives rise to strong attentional biases. Stimuli previously associated with reward automatically capture visual attention regardless of intention. Dopamine signaling within the ventral striatum plays an important role in reward learning, representing the expected reward initiated by a cue. How dopamine and the striatum may be involved in maintaining behaviors that have been shaped by reward learning, even after reward expectancies have changed, is less well understood. Nonspecific measures of brain activity have implicated the striatum in value-based attention. However, the neurochemical mechanisms underlying the attentional priority of learned reward cues remain unexplored. Here, we investigated the contribution of dopamine to value-based attention using positron emission

SUBMITTER: Anderson BA 

PROVIDER: S-EPMC4767677 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature