Self-regulation of hemispheric asymmetry

This study was performed to determine if individuals could demonstrate self-regulation of average EEG power of one hemisphere in comparison to the other. Temporal EEG was recorded from 8 males and 6 females. After a practice session, the subjects were instructed to increase or decrease the practice session, the subjects were instructed to increase or decrease the ratio of left to right temporal EEG. The subjects were given on-line feedback in the form of a graph presented via a computer display screen. The study demonstrated a significant ability of the subjects to change differentially the hemispheric power ratios upon instruction.