Homma I.: Respiratory Muscle Stretching Exercise. In Rehabilitation of the Patient with Respiratory Disease. Eds Cherniack NS, Altose MD, Homma I. McGraw-Hill pp. 355-362, 1999.
Homma I., Masaoka Y.: Breathing rhythms and emotions. Exp Physiol. 93: 1011-1021, 2008.
Homma I., Akai L.: Breathing and Emotion. In Psychology of Happiness. Eds Makinen A., Hajek P. Nova Science Pub. pp. 179-188, 2010.
Masaoka Y., Homma I.: The effect of anticipatory anxiety on breathing and metabolism in humans. Respir Physiol. 128: 171-177, 2001.
Homma I., Oizumi R., Masaoka Y.: Effects of practicing Ikebana on anxiety and respiration. J. Depression and Anxiety 4 (3) : 187, 2015.