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Bayesian models of mentalizing

Grave de Peralta Menendez, Rolando
Bessière, Pierre
Published in Brain Topography. 2008, vol. 20, no. 4, p. 278-83
Collection Open Access - Licence nationale Springer
Abstract Surprisingly effortless is the human capacity known as "mentalizing", i.e., the ability to explain and predict the behavior of others by attributing to them independent mental states, such as beliefs, desires, emotions or intentions. This capacity is, among other factors, dependent on the correct anticipation of the dynamics of facially expressed emotions based on our beliefs and experience. Important information about the neural processes involved in mentalizing can be derived from dynamic recordings of neural activity such as the EEG. We here exemplify how the so-called Bayesian probabilistic models can help us to model the neural dynamic involved in the perception of clips that evolve from neutral to emotionally laden faces. Contrasting with conventional models, in Bayesian models, probabilities can be used to dynamically update beliefs based on new incoming information. Our results show that a reproducible model of the neural dynamic involved in the appraisal of facial expression can be derived from the grand mean ERP over five subjects. One of the two models used to predict the individual subject dynamic yield correct estimates for four of the five subjects analyzed. These results encourage the future use of Bayesian formalism to build more detailed models able to describe the single trial dynamic.
Keywords AdultBayes TheoremBrain/physiologyBrain MappingElectroencephalographyEmotions/physiologyFemaleHumansMaleMental Processes/physiologyNonlinear DynamicsPhotic StimulationReaction Time
PMID: 18351451
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Research groups Mécanismes cérébraux du comportement et des fonctions cognitives (701)
Neuroimagerie du Sommeil et de la Cognition (832)
Groupe Gonzalez Andino Sara (The electrical neuroimaging) (868)
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GRAVE DE PERALTA MENENDEZ, Rolando et al. Bayesian models of mentalizing. In: Brain Topography, 2008, vol. 20, n° 4, p. 278-83. doi: 10.1007/s10548-008-0047-4 https://archive-ouverte.unige.ch/unige:929

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Deposited on : 2009-02-25

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