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Centre de recherche Cerveau et Cognit... 1 Department of Psychiatry Service Hosp... 1 Epileptology Department Timone Hospit... 1 Functional Neurology and Epileptology... 1 Grenoble Institut Neurosciences Unive... 1 Motivation Brain and Behavior Team Pa... 1 Neurology Department 2nd Faculty of M... 1 Neurology Department CHU Toulouse Tou... 1 Neurology Department University Hospi... 1 Neurology Department University Hospi... 1 Neurology Department University Hospi... 1 Université de Paris Paris France 1
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Centre de recherche Cerveau et Cognit... 1 Department of Psychiatry Service Hosp... 1 Epileptology Department Timone Hospit... 1 Functional Neurology and Epileptology... 1 Grenoble Institut Neurosciences Unive... 1 Motivation Brain and Behavior Team Pa... 1 Neurology Department 2nd Faculty of M... 1 Neurology Department CHU Toulouse Tou... 1 Neurology Department University Hospi... 1 Neurology Department University Hospi... 1 Neurology Department University Hospi... 1 Université de Paris Paris France 1
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PubMed
35822700
PubMed Central
PMC9348847
DOI
10.7554/elife.72440
PII: 72440
Knihovny.cz E-zdroje
Identifying factors whose fluctuations are associated with choice inconsistency is a major issue for rational decision theory. Here, we investigated the neuro-computational mechanisms through which mood fluctuations may bias human choice behavior. Intracerebral EEG data were collected in a large group of subjects (n=30) while they were performing interleaved quiz and choice tasks that were designed to examine how a series of unrelated feedbacks affect decisions between safe and risky options. Neural baseline activity preceding choice onset was confronted first to mood level, estimated by a computational model integrating the feedbacks received in the quiz task, and then to the weighting of option attributes, in a computational model predicting risk attitude in the choice task. Results showed that (1) elevated broadband gamma activity (BGA) in the ventromedial prefrontal cortex (vmPFC) and dorsal anterior insula (daIns) was respectively signaling periods of high and low mood, (2) increased vmPFC and daIns BGA respectively promoted and tempered risk taking by overweighting gain vs. loss prospects. Thus, incidental feedbacks induce brain states that correspond to different moods and bias the evaluation of risky options. More generally, these findings might explain why people experiencing positive (or negative) outcome in some part of their life tend to expect success (or failure) in any other.
- Klíčová slova
- choice, computational biology, human, iEEG, mood, neuroscience, systems biology,
- MeSH
- lidé MeSH
- magnetická rezonanční tomografie * metody MeSH
- mapování mozku MeSH
- mozek MeSH
- prefrontální mozková kůra MeSH
- riskování MeSH
- rozhodování * MeSH
- výběrové chování MeSH
- zpětná vazba MeSH
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- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
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