Event-Related Potentials Are Associated With Unexpected Gain and Loss: Using a Gambling Paradigm. (May 2019)

• Record Type: Journal Article
• Authors: Krause, Daniela; Jobst, Andrea; Langemak, Shari Marie; Keeser, Daniel; Chrobok, Agnieszka I.; Langgartner, Simon; Adorjan, Kristina; Gertzen, Markus; Pogarell, Oliver; Karch, Susanne
• Is Part Of: Clinical EEG and neuroscience. Volume 50:Number 3(2019)
• Page Start: 154
• Page End: 160
• Publication Date: 2019-05
• Subjects: electroencephalography -- event-related potentials -- gambling task -- feedback-related negativity -- reward; Electroencephalography -- Periodicals; Neurosciences -- Periodicals; 616.8047547
• DOI: 10.1177/1550059418814987
• Languages: English
• ISSNs: 1550-0594

Abstract

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.