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Effective connectivity between hippocampus and ventromedial prefrontal cortex controls preferential choices from Memory

Gluth, Sebastian and Sommer, Tobias and Rieskamp, Jörg and Büchel, Christian. (2015) Effective connectivity between hippocampus and ventromedial prefrontal cortex controls preferential choices from Memory. Neuron, 86 (4). pp. 1078-1090.

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Official URL: http://edoc.unibas.ch/40435/

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Abstract

Although many preferential choices in everyday life require remembering relevant information, the interplay of neural systems mediating decisions and memory has rarely been studied. We addressed this question by combining a task, in which choice options had to be retrieved from memory, with cognitive modeling and fMRI. We found that memory-guided decisions are captured by established process models of choice (sequential sampling models) but constrained by forgetting. People are biased toward remembered options and reject them only if they are very unattractive. Using a Bayesian modeling approach, we determined the posterior probability that options were remembered given the observed choices. This probability correlated with hippocampal activation during encoding. During decision making, the bias toward remembered options was linked to increased connectivity between hippocampus and ventromedial prefrontal cortex. Our results provide insights into the dependency of decisions on memory constraints and show that memory-related activation can be inferred from decisions.
Faculties and Departments:07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Sozial-, Wirtschafts- und Entscheidungspsychologie > Economic Psychology (Rieskamp)
UniBasel Contributors:Rieskamp, Jörg and Gluth, Sebastian
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0896-6273
e-ISSN:1097-4199
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:02 Nov 2017 11:18
Deposited On:02 Nov 2017 11:14

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