Mar 30, 2016

Dorsal anterior cingulate and ventromedial prefrontal cortex have inverse roles in both foraging and economic choice

BioRxiv : the Preprint Server for Biology
Amitai ShenhavJonathan D Cohen

Abstract

Recent research has highlighted a distinction between sequential foraging choices and traditional economic choices between simultaneously presented options. This was partly motivated by observations in Kolling et al. (2012) [KBMR] that these choice types are subserved by different circuits, with dorsal anterior cingulate (dACC) preferentially involved in foraging and ventromedial prefrontal cortex (vmPFC) preferentially involved in economic choice. To support this account, KBMR used fMRI to scan human subjects making either a foraging choice (between exploiting a current offer or swapping for potentially better rewards) or an economic choice (between two reward-probability pairs). This study found that dACC better tracked values pertaining to foraging, while vmPFC better tracked values pertaining to economic choice. We recently showed that dACC's role in these foraging choices is better described by the difficulty of choosing than by foraging value, when correcting for choice biases and testing a sufficiently broad set of foraging values (Shenhav et al., 2014). Here, we extend these findings in three ways. First, we replicate our original finding with a larger sample and a task modified to address remaining methodological gaps ...Continue Reading

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Mentioned in this Paper

Study
Research
Prefrontal Cortex
PBP6 protein, E coli
Anterior Cingulate Cortex, Dorsal Part
FMRI
Anterior Cingulate Gyrus
Calcaneal Apophysitis
Prefrontal Cortex (Walker)
Protein Activation

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