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Poster De Conférence Année : 2017

Rivalry and reward processing: an ERP study

Résumé

The Ultimatum Game (Guth et al., 1982) has been widely used to investigate fairness consideration during economic interactions in social context (e.g., Alexopoulos et al., 2012; Fabre et al., 2015). In this paradigm, the proposer receives a fix amount of money (e.g., 10€) and s/he was required to share a given sum of money with the responder. If the responder accepts the share, the sum will be divided as chosen by the proposer, however if the responder refuses, none of them will receive anything.
Usually, proposers and responders are randomly paired in this paradigm. However, the impact of being chosen by the proposer for an economic interaction (i.e., social reward) on the responder's fairness consideration of an offer has never been investigated.

Aim: In the present study, we investigated to what extent being chosen for an economic interaction over a rival modifies the fairness consideration of an economic offer and the associated neural correlates.
Participants played a modified Ultimatum game as responders. They were in competition with a "rival" responder, in that only one of them was selected to interact economically with the proposer. The pairing between the proposer and one of the responders could be randomly done by a computer (i.e., random pairing) or chosen by the proposer (i.e., proposer choice) based on the responders' photos. Participants were unaware that both the proposer and the rival responder were fictitious.
Here we present the preliminary electrophysiological results associated with the selection feedback (i.e. being selected or not for the economic interaction) depending on the selection mode (i.e., random pairing vs. proposer's choice).
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Dates et versions

hal-02902144 , version 1 (22-07-2020)

Identifiants

  • HAL Id : hal-02902144 , version 1

Citer

Agnès Falco, Eve Fabre, Anne-Claire Rattat, Isabelle Paul, Cédric T. Albinet. Rivalry and reward processing: an ERP study. NeuroFrance 2017, May 2017, Bordeaux, France. . ⟨hal-02902144⟩

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