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The guaranteed euros: Probabilistic discounting in behavioural‐variant frontotemporal dementia

Author

Listed:
  • Claire Boutoleau-Bretonnière

    (CHU Nantes - Centre Hospitalier Universitaire de Nantes = Nantes University Hospital)

  • Dimitrios Kapogiannis

    (NIH - National Institutes of Health [Bethesda, MD, USA])

  • Mohamad El Haj

    (LPPL - Laboratoire de Psychologie des Pays de la Loire - UA - Université d'Angers - Nantes Univ - UFR LL - Nantes Université - UFR Lettres et Langages - Nantes Université - pôle Humanités - Nantes Univ - Nantes Université)

Abstract

Financial decision making requires trading off between guaranteed and probabilistic outcomes and between immediate and delayed ones. While research has demonstrating that patients with behavioral-variant frontotemporal dementia (bvFTD) prefer immediate rewards at the expense of future ones (i.e., temporal discounting), little is known about how patients choose between smaller, guaranteed, and larger, but probabilistic, outcomes (i.e., probabilistic discounting). We thus investigated probabilistic discounting by invited 18 patients with bvFTD and 20 control participants to choose between fixed smaller monetary amounts and a fixed larger monetary amount with a variated probability of occurrence (e.g., "Would you rather have 40€ for sure or a 20% chance of winning 100€?"). Results demonstrated lower scores, indicating higher risk tolerance, on the probabilistic discounting task in patients with bvFTD (while impulsively choosing more immediate rewards on the temporal discounting task) compared to control participants. Probabilistic discounting was significantly correlated with a decline in general cognitive performance in patients with bvFTD. When dealing between smaller, guaranteed, and larger, but probabilistic, rewards, patients with bvFTD tend to prefer guaranteed rewards and discount the uncertain ones.

Suggested Citation

  • Claire Boutoleau-Bretonnière & Dimitrios Kapogiannis & Mohamad El Haj, 2023. "The guaranteed euros: Probabilistic discounting in behavioural‐variant frontotemporal dementia," Post-Print hal-04914242, HAL.
  • Handle: RePEc:hal:journl:hal-04914242
    DOI: 10.1111/jnp.12357
    Note: View the original document on HAL open archive server: https://nantes-universite.hal.science/hal-04914242v1
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    More about this item

    Keywords

    Behavioral-variant frontotemporal dementia; Frontotemporal dementia; Decision making; Probabilistic discounting; Temporal discounting;
    All these keywords.

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