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Published on: June 12, 2020
Levels of conflict in reasoning modulate right lateral prefrontal cortex
Melanie Stollstorff1, Oshin Vartanian, Vinod Goel
1Department of Psychology, York University, Toronto, Ontario, Canada. melanie.stollstorff@colorado.edu
Abstract:
Right lateral prefrontal cortex (rlPFC) has previously been implicated in logical reasoning under conditions of conflict. A functional magnetic resonance imaging (fMRI) study was conducted to explore its role in conflict more precisely. Specifically, we distinguished between belief-logic conflict and belief-content conflict, and examined the role of rlPFC under each condition. The results demonstrated that a specific region of rlPFC is consistently activated under both types of conflict. Moreover, the results of a parametric analysis demonstrated that the same region was modulated by the level of conflict contained in reasoning arguments. This supports the idea that this specific region is engaged to resolve conflict, including during deductive reasoning. This article is part of a Special Issue entitled "The Cognitive Neuroscience of Thought".
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