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Neural substrates of similarity and rule-based strategies in judgment
Univ Basel, Ctr Econ Psychol, Dept Psychol, CH-4055 Basel, Switzerland.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB). Umeå University, Faculty of Medicine, Umeå Centre for Functional Brain Imaging (UFBI).
Univ Fribourg, Dept Psychol, CH-1700 Fribourg, Switzerland.
Univ Basel, Ctr Econ Psychol, Dept Psychol, CH-4055 Basel, Switzerland.
2014 (English)In: Frontiers in Human Neuroscience, ISSN 1662-5161, E-ISSN 1662-5161, Vol. 8, 809- p.Article in journal (Refereed) Published
Abstract [en]

Making accurate judgments is a core human competence and a prerequisite for success in many areas of life. Plenty of evidence exists that people can employ different judgment strategies to solve identical judgment problems. In categorization, it has been demonstrated that similarity-based and rule-based strategies are associated with activity in different brain regions. Building on this research, the present work tests whether solving two identical judgment problems recruits different neural substrates depending on people's judgment strategies. Combining cognitive modeling of judgment strategies at the behavioral level with functional magnetic resonance imaging (fMRI), we compare brain activity when using two archetypal judgment strategies: a similarity-based exemplar strategy and a rule-based heuristic strategy. Using an exemplar-based strategy should recruit areas involved in long-term memory processes to a larger extent than a heuristic strategy. In contrast, using a heuristic strategy should recruit areas involved in the application of rules to a larger extent than an exemplar-based strategy. Largely consistent with our hypotheses, we found that using an exemplar-based strategy led to relatively higher BOLD activity in the anterior prefrontal and inferior parietal cortex, presumably related to retrieval and selective attention processes. In contrast, using a heuristic strategy led to relatively higher activity in areas in the dorsolateral prefrontal and the temporal-parietal cortex associated with cognitive control and information integration. Thus, even when people solve identical judgment problems, different neural substrates can be recruited depending on the judgment strategy involved.

Place, publisher, year, edition, pages
2014. Vol. 8, 809- p.
Keyword [en]
judgment and decision making, fMRI, exemplar model, cognitive strategies, cognitive modeling, multi- tribute decision making
National Category
Neurosciences Psychology
Identifiers
URN: urn:nbn:se:umu:diva-95859DOI: 10.3389/fnhum.2014.00809ISI: 000343036400001PubMedID: 25360099OAI: oai:DiVA.org:umu-95859DiVA: diva2:782507
Available from: 2015-01-21 Created: 2014-11-06 Last updated: 2017-12-05Bibliographically approved

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Karlsson, Linnea

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