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{
    "pk": 28523,
    "title": "Modelling Emotion Based Reward Valuation with Computational ReinforcementLearning",
    "subtitle": null,
    "abstract": "We show that computational reinforcement learning can modelhuman decision making in the Iowa Gambling Task (IGT). TheIGT is a card game, which tests decision making under uncer-tainty. In our experiments, we found that modulating learningrate decay in Q-learning, enables the approximation of both thebehaviour of normal subjects and those who are emotionallyimpaired by ventromedial prefrontal lesions. Outcomes ob-served in impaired subjects are modeled by high learning ratedecay, while low learning rate decay replicates healthy sub-jects under otherwise identical conditions. The ventromedialprefrontal cortex has been associated with emotion based re-ward valuation, and, the value function in reinforcement learn-ing provides an analogous assessment mechanism. Thus rein-forcement learning can provide a good model for the role ofemotional reward as a modulator of the learning rate.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "reinforcement learning; Q-learning; learning ratedecay; Iowa Gambling Task; ventromedial prefrontal impair-ment"
        }
    ],
    "section": "Papers with Oral Presentations",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/2zk3x40z",
    "frozenauthors": [
        {
            "first_name": "Can",
            "middle_name": "",
            "last_name": "Koluman",
            "name_suffix": "",
            "institution": "University of London",
            "department": ""
        },
        {
            "first_name": "Christopher",
            "middle_name": "",
            "last_name": "Child",
            "name_suffix": "",
            "institution": "University of London",
            "department": ""
        },
        {
            "first_name": "Tillmann",
            "middle_name": "",
            "last_name": "Weyde",
            "name_suffix": "",
            "institution": "University of London",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2019-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/28523/galley/18394/download/"
        }
    ]
}