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Reward-guided decision-making depends on a network of brain regions. Among these are the orbitofrontal and the anterior cingulate cortex. However, it is difficult to ascertain if these areas constitute anatomical and functional unities, and how these areas correspond between monkeys and humans. To address these questions we looked at connectivity profiles of these areas using resting-state functional MRI in 38 humans and 25 macaque monkeys. We sought brain regions in the macaque that resembled 10 human areas identified with decision making and brain regions in the human that resembled six macaque areas identified with decision making. We also used diffusion-weighted MRI to delineate key human orbital and medial frontal brain regions. We identified 21 different regions, many of which could be linked to particular aspects of reward-guided learning, valuation, and decision making, and in many cases we identified areas in the macaque with similar coupling profiles.

Original publication

DOI

10.1073/pnas.1410767112

Type

Journal article

Journal

Proc Natl Acad Sci U S A

Publication Date

19/05/2015

Volume

112

Pages

E2695 - E2704

Keywords

anterior cingulate cortex, comparative anatomy, decision making, orbitofrontal cortex, resting state functional connectivity, Animals, Connectome, Decision Making, Frontal Lobe, Humans, Learning, Macaca, Magnetic Resonance Imaging, Models, Neurological, Reward, Species Specificity