Effective Connectivity between Hippocampus and Ventromedial Prefrontal Cortex Controls Preferential Choices from Memory.
- Gluth S Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246, Hamburg, Germany; Department of Psychology, University of Basel, Missionsstrasse 62a, CH-4055, Basel, Switzerland. Electronic address: sebastian.gluth@unibas.ch.
- Sommer T Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246, Hamburg, Germany.
- Rieskamp J Department of Psychology, University of Basel, Missionsstrasse 62a, CH-4055, Basel, Switzerland.
- Büchel C Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246, Hamburg, Germany.
- 2015-05-22
Published in:
- Neuron. - 2015
Adolescent
Adult
Brain Mapping
Choice Behavior
Female
Hippocampus
Humans
Magnetic Resonance Imaging
Male
Memory
Neural Pathways
Prefrontal Cortex
Young Adult
English
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.
- Language
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- English
- Open access status
- bronze
- Identifiers
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- DOI 10.1016/j.neuron.2015.04.023
- PMID 25996135
- Persistent URL
- https://folia.unifr.ch/global/documents/150032
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