BIROn - Birkbeck Institutional Research Online

    Compulsivity reveals a novel dissociation between action and confidence

    Vaghi, Matilde M. and Luyckx, F. and Sule, A. and Fineberg, N.A. and Robbins, T.W. and De Martino, B. (2017) Compulsivity reveals a novel dissociation between action and confidence. Neuron 96 (2), 348-354.e4. ISSN 0896-6273.

    53075.pdf - Published Version of Record
    Available under License Creative Commons Attribution.

    Download (1MB) | Preview


    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
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Depositing User: Matilde Vaghi
    Date Deposited: 15 Feb 2024 17:18
    Last Modified: 15 Feb 2024 18:26


    Activity Overview
    6 month trend
    6 month trend

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item