articleJournal of NeuroscienceJul 14, 2004BRONZE OA

Independent Coding of Reward Magnitude and Valence in the Human Brain

NYNick YeungAGAlan G. Sanfey

Princeton University

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Abstract

Previous research has shown that two components of the event-related brain potential, the P300 and feedback negativity, are sensitive to information about rewards and penalties. The present study investigated the properties of these components in a simple gambling game that required participants to choose between cards that were unpredictably associated with monetary gains and losses of variable magnitude. The aim was to determine the sensitivity of each component to two critical features of reward stimuli: magnitude (small or large) and valence (win or loss). A double dissociation was observed, with the P300 sensitive to reward magnitude but insensitive to reward valence and the feedback negativity showing…

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Topics & keywords

Topics
Keywords
  • Negativity effect
  • Valence (chemistry)
  • Psychology
  • Negative feedback
  • Mismatch negativity
  • Electroencephalography
  • Event-related potential
  • Neuroscience
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