Titel
Neural correlates of valence-dependent belief and value updating during uncertainty reduction: An fNIRS study
Autor*in
Xue-Rui Peng
Chair of Lifespan Developmental Neuroscience, Faculty of Psychology, Technische Universität Dresden
Indra Bundil
Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University
... show all
Abstract
Selective use of new information is crucial for adaptive decision-making. Combining a gamble bidding task with assessing cortical responses using functional near-infrared spectroscopy (fNIRS), we investigated potential effects of information valence on behavioral and neural processes of belief and value updating during uncertainty reduction in young adults. By modeling changes in the participants’ expressed subjective values using a Bayesian model, we dissociated processes of (i) updating beliefs about statistical properties of the gamble, (ii) updating values of a gamble based on new information about its winning probabilities, as well as (iii) expectancy violation. The results showed that participants used new information to update their beliefs and values about the gambles in a quasi-optimal manner, as reflected in the selective updating only in situations with reducible uncertainty. Furthermore, their updating was valence-dependent: information indicating an increase in winning probability was underweighted, whereas information about a decrease in winning probability was updated in good agreement with predictions of the Bayesian decision theory. Results of model-based and moderation analyses showed that this valence-dependent asymmetry was associated with a distinct contribution of expectancy violation, besides belief updating, to value updating after experiencing new positive information regarding winning probabilities. In line with the behavioral results, we replicated previous findings showing involvements of frontoparietal brain regions in the different components of updating. Furthermore, this study provided novel results suggesting a valence-dependent recruitment of brain regions. Individuals with stronger oxyhemoglobin responses during value updating was more in line with predictions of the Bayesian model while integrating new information that indicates an increase in winning probability. Taken together, this study provides first results showing expectancy violation as a contributing factor to sub-optimal valence-dependent updating during uncertainty reduction and suggests limitations of normative Bayesian decision theory.
Stichwort
Frontoparietal cortexRiskAmbiguityAsymmetric updatingValence dependencyBayesian decision theoryStatistical inference
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
Erschienen in
Titel
NeuroImage
Band
279
ISSN
1053-8119
Erscheinungsdatum
2023
Publication
Elsevier BV
Erscheinungsdatum
2023
Zugänglichkeit
Rechte
Rechteangabe
© 2023 The Author(s)
Universität Wien | Universitätsring 1 | 1010 Wien | T
+43-1-4277-0