%0 Journal Article
%T Event
%A Agnieszka I. Chrobok
%A Andrea Jobst
%A Daniel Keeser
%A Daniela Krause
%A Kristina Adorjan
%A Markus Gertzen
%A Oliver Pogarell
%A Shari Marie Langemak
%A Simon Langgartner
%A Susanne Karch
%J Clinical EEG and Neuroscience
%@ 2169-5202
%D 2019
%R 10.1177/1550059418814987
%X Objective. Previous neuroimaging studies have described altered activity in brain areas associated with reward processing following reward or punishment. This study examines the extent to which feedback-based experience of gain and loss is associated with electrophysiological correlates. Methods. Twenty-nine healthy participants used a gambling task that focused on actual nonpredictable gains and losses. During the task, an electroencephalography recording was performed in order to assess reward processing. Event-related potentials were analyzed when participants were receiving gain/loss feedback. Results. Event-related potentials revealed higher feedback-related negativity for both overall gain and loss compared with a neutral condition in fronto-centro-parietal electrodes. P3 potentials were significantly increased for high gains/losses compared to neutral and small gains/losses. Conclusion. These results indicate that the paradigm is suitable to evoke specific patterns of reward-related electrophysiological responses. The wavelet analysis showed that electroencephalography frequency variations depended on the amount of gains/losses. Significance. This gambling paradigm is appropriate to measure aspects of feedback processing and could help analyze disease-specific alterations of the reward system in patients
%K electroencephalography
%K event-related potentials
%K gambling task
%K feedback-related negativity
%K reward
%U https://journals.sagepub.com/doi/full/10.1177/1550059418814987