Fig. 3.

Transfer trials of SCP Neurofeedback training. a Mean absolute SCP amplitudes in positive and negative SCP trials in subsequent days of the training. The training comprised 3 blocks separated by 1-month breaks. There were only 6 days of training in block 1 and 5 days in blocks 2 and 3 (of possible 10). On the remaining days, the registered EEG signal was contaminated with artifacts or the patient was unable to perform the training. This data was missing in the estimation of mean absolute SCP amplitudes. Bottom plots show mean SCP amplitude values obtained in negative (b) and positive (c) transfer trials on certain days in all training blocks. The direction of SCP amplitude changes throughout the training is depicted as trend lines. Some values are missing for the reason mentioned above