Joint modeling of choices and reaction times based on Bayesian contextual behavioral control
PLoS Computational Biology, ISSN: 1553-7358, Vol: 20, Issue: 7 July, Page: e1012228
2024
- 22Captures
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Metrics Details
- Captures22
- Readers22
- 22
Article Description
In cognitive neuroscience and psychology, reaction times are an important behavioral measure. However, in instrumental learning and goal-directed decision making experiments, findings often rely only on choice probabilities from a value-based model, instead of reaction times. Recent advancements have shown that it is possible to connect value-based decision models with reaction time models. However, typically these models do not provide an integrated account of both value-based choices and reaction times, but simply link two types of models. Here, we propose a novel integrative joint model of both choices and reaction times by combining a computational account of Bayesian sequential decision making with a sampling procedure. This allows us to describe how internal uncertainty in the planning process shapes reaction time distributions. Specifically, we use a recent context-specific Bayesian forward planning model which we extend by a Markov chain Monte Carlo (MCMC) sampler to obtain both choices and reaction times. As we will show this makes the sampler an integral part of the decision making process and enables us to reproduce, using simulations, well-known experimental findings in value based-decision making as well as classical inhibition and switching tasks. Specifically, we use the proposed model to explain both choice behavior and reaction times in instrumental learning and automatized behavior, in the Eriksen flanker task and in task switching. These findings show that the proposed joint behavioral model may describe common underlying processes in these different decision making paradigms.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85198030244&origin=inward; http://dx.doi.org/10.1371/journal.pcbi.1012228; http://www.ncbi.nlm.nih.gov/pubmed/38968304; https://dx.plos.org/10.1371/journal.pcbi.1012228; https://dx.doi.org/10.1371/journal.pcbi.1012228; https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1012228
Public Library of Science (PLoS)
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