Nonlinear analysis of EEG for brain respiration trained students during learning activities

We investigated electroencephalogram (EEG) of brain respiration (BR) trained elementary school students. Five students are BR trained over six months and the other five students are not. We measured EEG from 16 channels during learning activities and calculated a correlation dimension as a nonlinear measure. BR trained students had higher average values of the D2 at Fp2 channel during resting state. When subjects were reading a book, BR trained students had higher average values of D2 at P3 channel. D2 of BR trained students were higher at C4 channel during mental arithmetic, and at F4 channel during finding their way out a maze than normal controls. These results suggest that the brain of BR trained students remained in a more attentive state during learning activities than that of normal controls.