An Exploratory Study of Training Intensity in EEG Neurofeedback

Figure 4

(a) Evolution within session for the INTENSIVE (blue) and SPARSE (red) groups during neurofeedback (NF) at Fz: mean of the upper alpha (UA) amplitude in all corresponding blocks considering the median of the participants; error bars show standard deviation. (b) Boxplot with distribution of (equation (4)) and (equation (5)) measures for the INTENSIVE (blue) and SPARSE (red) groups; + represents outliers; represents values below 0.05 and represents values below 0.01.

(a)

(b)