Journal
NEURON
Volume 87, Issue 6, Pages 1369-1380Publisher
CELL PRESS
DOI: 10.1016/j.neuron.2015.08.023
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Funding
- John D. and Catherine T. MacArthur Foundation
- University of California at Santa Barbara
- Vanderbilt's Center for Integrative and Cognitive Neuroscience
- NIMH [T32MH018921, T32MH064913]
- National Institute on Drug Abuse [1R03DA034126-01]
- Sloan Foundation
- Brain and Behavior Research Foundation
- MGH Center for Law, Brain, and Behavior
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The social welfare provided by cooperation depends on the enforcement of social norms. Determining blameworthiness and assigning a deserved punishment are two cognitive cornerstones of norm enforcement. Although prior work has implicated the dorsolateral prefrontal cortex (DLPFC) in norm-based judgments, the relative contribution of this region to blameworthiness and punishment decisions remains poorly understood. Here, we used repetitive transcranial magnetic stimulation (rTMS) and fMRI to determine the specific role of DLPFC function in norm-enforcement behavior. DLPFC rTMS reduced punishment for wrongful acts without affecting blameworthiness ratings, and fMRI revealed punishment-selective DLPFC recruitment, suggesting that these two facets of norm-based decision making are neurobiologically dissociable. Finally, we show that DLPFC rTMS affects punishment decision making by altering the integration of information about culpability and harm. Together, these findings reveal a selective, causal role for DLPFC in norm enforcement: representational integration of the distinct information streams used to make punishment decisions.
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