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Int J Psychophysiol. 1994 Oct;18(1):75-9.

EEG changes during forced alternate nostril breathing.

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  • 1Department of Physiology and Clinical Physiology, Charles IV University, Prague, Czech Republic.


The effects of 10 min forced alternate nostril breathing (FANB) on EEG topography were studied in 18 trained subjects. One type of FANB consisted 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 addition, hemisphere asymmetry in the beta 1 band decreased in the second half of FANB suggesting that FANB has a balancing effect on the functional activity of the left and right hemisphere.

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