Abstract
Previous event-related brain potential (ERP) studies have identified a medial frontal negativity (MFN) in response to negative feedback or monetary losses. In contrast, no EEG correlates have been identified related to the processing of monetary gains or positive feedback. This result is puzzling considering the large number of brain regions involved in the processing of rewards. In the present study we used a gambling task to investigate this issue with trial-by-trial wavelet-based time-frequency analysis of the electroencephalographic signal recorded non-invasively in healthy humans. Using this analysis a mediofrontal oscillatory component in the beta range was identified which was associated to monetary gains. In addition, standard time-domain ERP analysis showed an MFN for losses that was associated with an increase in theta power in the time-frequency analysis. We propose that the reward-related beta oscillatory activity signifies the functional coupling of distributed brain regions involved in reward processing.
| Original language | English |
|---|---|
| Journal | Neuropsychologia |
| Volume | 46 |
| Issue number | 1 |
| Pages (from-to) | 241-248 |
| Number of pages | 8 |
| ISSN | 0028-3932 |
| DOIs | |
| Publication status | Published - 22.01.2008 |
Funding
This research was supported by research grants of Spanish Government (SEJ2005-06067/PSIC to ARF and SEC2001-3821C0501 to AAP), the Ramon y Cajal research program and the Volkswagenstiftung to ARF and TFM. TFM is also supported by the DFG and the BMBF. Special thanks to Estela Camara, Anna Mestres-Missé and Lluis Fuentemilla for their technical help and comments at various stages of the project.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being -
SDG 10 Reduced Inequalities
Research Areas and Centers
- Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)
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