Josep Marco-Pallarés

23 novembre 2018

Cognition and Brain Plasticity Group,Department of Cognition, Development and Educational Psychology, Universitat de Barcelona & IDIBELL

Brain oscillatory activity in decision making and reward processing

invité par Nicole Malfait


Abstract : Two main oscillatory components have been related to decision making and reward processing : theta activity (4-8 Hz), which has been associated with the computation of prediction error ; and high beta-low gamma activity (20-35 Hz) which has been related to unexpected or highly significant positive events. However, most of the studies reporting these activities have been performed using simple paradigms involving monetary rewards, which limit the interpretation of their function. In this presentation I will review previous evidence about the role of these components and will present new data using different paradigms including hierarchical reinforcement learning and complex rewarding stimuli (such as information, music and near miss events) which allow us a better understanding of their involvement in complex cognitive processes.

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