Late auditory event-related potential changes after sensorimotor rhythm neurofeedback training

Background/Aim. Neurofeedback (NFB) is a therapeutic method based on monitoring the electroencephalogram (EEG) and providing feedback on the brain activity of sub-jects. The aim of the pilot study was to investigate the effect of lower-beta or sensorimotor rhythm (SMR) (12-15 Hz) NFB training on amplitudes and latencies of late auditory event-related potentials (aERP) components N100, N200, P300 in Go-No go task of auditory discrimination. Meth-ods. Each of 9 healthy participants aged 25-40 years (4 male) had 20 daily sessions of SMR neurofeedback training. The aERP was recorded 5 times: before NFB, after 5, 10, and 20 sessions, and one month after the last session. Re-sults. The results showed a statistically significant decrease in N100, N200, and P300 latencies at Fz, Cz, and Pz re-gions. No significant effect of NFB training on amplitudes of components N100, N200 and N300 was found. Conclu-sion. The obtained results suggest that NFB training exerts its effect on the processes of auditory cognition.