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{
    "pk": 50227,
    "title": "Rethinking Rumination: A Decision-Theoretic Approach Without Negativity Bias",
    "subtitle": null,
    "abstract": "Prior work by Bedder et al. (2023, 2024) modeled rumination as a negativity-biased decision process under uncertainty in a POMDP framework, where excessive sampling results from pessimistic priors and uncertainty about negative experiences. While these models provide valuable insight, they assume that excessive information-seeking is driven primarily by negative affect. We explore an alternative hypothesis: excessive information-seeking may result from optimal inference due to uncertainty and planning depth, independent of negativity bias. Using a POMDP solver with recursive value iteration, we find horizon length and uncertainty influence the persistence of sampling actions without a negative reward bias. This shifts rumination from an affect-driven process to a more generalized preoccupation mechanism consistent with the ICD-11's transdiagnostic conceptualization of preoccupation (Eberle & Maercker, 2022). Unlike prior models with fixed stopping thresholds, our approach may allow preoccupation to emerge dynamically from decision parameters without explicit negativity bias.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "Psychology; Mood; Problem Solving; Computational Modeling"
        }
    ],
    "section": "Member Abstracts with Poster Presentation",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/36k4b6x9",
    "frozenauthors": [
        {
            "first_name": "Michael",
            "middle_name": "",
            "last_name": "Payton",
            "name_suffix": "",
            "institution": "University of Wisconsin Madison",
            "department": ""
        },
        {
            "first_name": "Mary",
            "middle_name": "",
            "last_name": "Vitello",
            "name_suffix": "",
            "institution": "UCLA",
            "department": ""
        },
        {
            "first_name": "Joseph",
            "middle_name": "Larry",
            "last_name": "Austerweil",
            "name_suffix": "",
            "institution": "University of Wisconsin - Madison",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2025-01-01T11:00:00-07:00",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/50227/galley/38189/download/"
        }
    ]
}