Compulsivity reveals a novel dissociation between action and confidence

Vaghi, Matilde M. ORCID:, Luyckx, Fabrice, Sule, Akeem, Fineberg, Naomi A., Robbins, Trevor W. and de Martino, Benedetto (2017) Compulsivity reveals a novel dissociation between action and confidence. Neuron, 96 (2). 348-354.E4. ISSN 0896-6273

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Confidence and actions are normally tightly interwoven—if I am sure that it is going to rain, I will take an umbrella—therefore, it is difficult to understand their interplay. Stimulated by the ego-dystonic nature of obsessive-compulsive disorder (OCD), where compulsive actions are recognized as disproportionate, we hypothesized that action and confidence might be independently updated during learning. Participants completed a predictive-inference task designed to identify how action and confidence evolve in response to surprising changes in the environment. While OCD patients (like controls) correctly updated their confidence according to changes in the environment, their actions (unlike those of controls) mostly disregarded this knowledge. Therefore, OCD patients develop an accurate, internal model of the environment but fail to use it to guide behavior. Results demonstrated a novel dissociation between confidence and action, suggesting a cognitive architecture whereby confidence estimates can accurately track the statistic of the environment independently from performance.

Item Type: Article
Faculty \ School: Faculty of Social Sciences > School of Psychology
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Depositing User: LivePure Connector
Date Deposited: 05 Oct 2022 09:31
Last Modified: 25 Oct 2022 00:15
DOI: 10.1016/j.neuron.2017.09.006

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