EEG CHANGES DURING FORCED ALTERNATE NOSTRIL BREATHING

The effects of 10 min forced alternate nostril breathing (FANB) on EEG topography were studied in 18 trained subjects. One type of FANB cons isted in left nostril inspiration and right nostril expiration and the other type in right nostril inspiration and left nostril expiration. Mean power in the beta bands and partially in the alpha band increased during FANB irrespective of the type of nostril breathing. In additio n, hemisphere asymmetry in the beta 1 band decreased in the second hal f of FANB suggesting that FANB has a balancing effect on the functiona l activity of the left and right hemisphere.