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- Article] Distinct neural mechanisms of risk and ambiguity: A meta-analysis of decision-making
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DocNo of ILP: 4704
Doc. Type: Article
Title: Distinct neural mechanisms of risk and ambiguity: A meta-analysis of decision-making
Authors: Krain, AL; Wilson, AM; Arbuckle, R; Castellanos, FX; Milham, MP
Full Name of Authors: Krain, Amy L.; Wilson, Amanda M.; Arbuckle, Robert; Castellanos, F. Xavier; Milham, Michael P.
Keywords by Author:
Keywords Plus: ORBITOFRONTAL CORTEX DYSFUNCTION; ANTERIOR CINGULATE CORTEX; METHAMPHETAMINE-DEPENDENT SUBJECTS; HUMAN PREFRONTAL CORTEX; IOWA GAMBLING TASK; ERROR-RATE; FUTURE CONSEQUENCES; RESPONSE REVERSAL; PARIETAL CORTEX; WILLED ACTION
Abstract: Converging evidence from human and animal studies suggests that decision-making relies upon a distributed neural network based in the frontal lobes. In particular, models of decsion-making emphasize the involvement of orbitofrontal cortices (OFC) and the medial wall. While decision-making has been studied broadly as a class of executive function, recent models have suggested the differentiation between risky and ambiguous decision-making. Given recent emphasis on the role of OFC in affectively laden "hot" executive function and dorsolateral prefrontal cortex (DLPFC) in more purely cognitive 'cool" executive function, we hypothesize that the neural substrates of decision-making may differ depending on the nature of the decision required. To test this hypothesis, we used recently developed meta-analytic techniques to examine the existent functional neuroirnaging literature. An initial meta-analysis of decision-making, both risky and ambiguous, found significantly elevated probabilities of activation in frontal and parietal regions, thalamus, and caudate. Ambiguous decision-making was associated with activity in DLPFC, regions of dorsal and subcallosal anterior cingulate cortex (ACC), and parietal cortex. Risky decision-making was associated with activity in OFC, rostral portions of the ACC, and parietal cortex. Direct statistical comparisons revealed significant differences between risky and ambiguous decision-making in frontal regions, including OFC, DLPFC, and ACC, that were consistent with study hypotheses. These findings provide evidence for the dissociation of neural circuits underlying risky and ambiguous decision-making, reflecting differential involvement of affective "hot" and cognitive "cool" processes. (c) 2006 Elsevier Inc. All rights reserved.
Cate of OECD: Basic medicine
Year of Publication: 2006
Business Area: gamble
Detail Business: gamble
Country: USA
Study Area:
Name of Journal: NEUROIMAGE
Language: English
Country of Authors: NYU, Sch Med, Ctr Child Study, New York, NY 10016 USA
Press Adress: Krain, AL (reprint author), NYU, Sch Med, Ctr Child Study, 215 Lexington Ave,13th Floor, New York, NY 10016 USA.
Email Address: amy.krain@med.nyu.edu; milham01@med.nyu.edu
Citaion:
Funding:
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Number of Citaion: 52
Publication: ACADEMIC PRESS INC ELSEVIER SCIENCE
City of Publication: SAN DIEGO
Address of Publication: 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
ISSN: 1053-8119
29-Character Source Abbreviation: NEUROIMAGE
ISO Source Abbreviation: Neuroimage
Volume: 32
Version: 1
Start of File: 477
End of File: 484
DOI: 10.1016/j.neuroimage.2006.02.047
Number of Pages: 8
Web of Science Category: Neurosciences; Neuroimaging; Radiology, Nuclear Medicine & Medical Imaging
Subject Category: Neurosciences & Neurology; Radiology, Nuclear Medicine & Medical Imaging
Document Delivery Number: 070NY
Unique Article Identifier: WOS:000239530700048
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