Uncovering the spatio-temporal dynamics of value-based decision-making in the human brain: a combined fMRI-EEG study.

ABSTRACT: While there is a growing body of functional magnetic resonance imaging (fMRI) evidence implicating a corpus of brain regions in value-based decision-making in humans, the limited temporal resolution of fMRI cannot address the relative temporal precedence of different brain regions in decision-making. To address this question, we adopted a computational model-based approach to electroencephalography (EEG) data acquired during a simple binary choice task. fMRI data were also acquired from the same participants for source localization. Post-decision value signals emerged 200 ms post-stimulus in a predominantly posterior source in the vicinity of the intraparietal sulcus and posterior temporal lobe cortex, alongside a weaker anterior locus. The signal then shifted to a predominantly anterior l

SUBMITTER: Larsen T 

PROVIDER: S-EPMC4186227 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature