Fig. 3

Neurofeedback training with Protocol 4 in P1-5, EEG power as a function of frequency recorded at C4. EEG power at the baseline (‘Pre NF’), during neurofeedback training (‘NF’) and 2–3 minutes following training (‘Post NF’). Bars above graphs show three frequency bands in which training was provided. Arrows up marks a band that was reinforced while arrows down mark frequency bands which were suppressed. Black bars under graphs show statistically significant difference for ‘NF’-‘Pre NF’, while grey bars show statistically significant difference for ‘Post NF’-‘Pre NF’