The online metacognitive control of decisions

Author:

Bénon JulietteORCID,Lee DouglasORCID,Hopper William,Verdeil Morgan,Pessiglione Mathias,Vinckier Fabien,Bouret Sebastien,Rouault Marion,Lebouc RaphaelORCID,Pezzulo GiovanniORCID,Schreiweis Christiane,Burguière EricORCID,Daunizeau JeanORCID

Abstract

AbstractDifficult decisions typically involve mental effort, which scales with the deployment of cognitive (e.g., mnesic, attentional) resources engaged in processing decision-relevant information. But how does the brain regulate mental effort? A possibility is that the brain optimizes a resource allocation problem, whereby the amount of invested resources balances its expected cost (i.e. effort) and benefit. Our working assumption is that subjective decision confidence serves as the benefit term of the resource allocation problem, hence the “metacognitive” nature of decision control. Here, we present a computational model for the online metacognitive control of decisions or oMCD. Formally, oMCD is a Markov Decision Process that optimally solves the ensuing resource allocation problem under agnostic assumptions about the inner workings of the underlying decision system. We demonstrate how this makes oMCD a quasi-optimal control policy for a broad class of decision processes, including -but not limited to- progressive attribute integration. We disclose oMCD’s main properties (in terms of choice, confidence and response time), and show that they reproduce most established empirical results in the field of value-based decision making. Finally, we discuss the possible connections between oMCD and most prominent neurocognitive theories about decision control and mental effort regulation.

Funder

Agence Nationale de la Recherche

Publisher

Springer Science and Business Media LLC

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