Published Research
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Here are links to AOL research articles that were published in
international peer-reviewed journals.
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Naga Venkatesha Murthy, P.J., Gangadhar, B.N., Janakiramaiah, N., Subbakrishna, D.K. (1997).
Normalization of P300 Amplitude following Treatment in Dysthymia.
Biological Psychiatry, 42, 740-743.
 Abstract
Naga Venkatesha Murthy, P.J., Gangadhar, B.N., Janakiramaiah, N., Subbakrishna, D.K. (1997). Normalization of P300 Amplitude following Treatment in Dysthymia. Biological Psychiatry, 42, 740-743.
Studies in major depression have revealed “state” dependent smaller amplitude of P300 event related potential (ERP) (Blackwood et al 1987; Gangadhar et al 1993). Whether it is true in dysthymia remains untested.
In the study by Shagass et al (1985), neurotic patients were vaguely assumed to have a dysthymic disorder and the study included evoked potentials but not cognitive ERPs. Giese-Davis and Miller (1987) studied mismatched negativity in dysthymics (DYs), whereas Yee and Miller (1988) studied the emotional information processing with respect to modulation of fear, and did not address the P300 ERP abnormalities per se in DYs. Likewise, Yee et al (1992) have studied in DYs ERP components earlier to P300.
Bruder et al (1995) found reduced amplitude and hemispheric asymmetry of P300, using dichotic complex tone test, in 44 depressives (five DYs dysthymics). In the present study we compared the P300 ERP in DYs, depressives with melancholic features (DMs), normal controls, and included a follow-up to examine if P300 abnormalities persist upon improvement.
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Naga Venkatesha Murthy, P.J., Gangadhar, B.N., Janakiramaiah, N., Subbakrishna, D.K. (1997).
Normalization of P300 Amplitude following Treatment in Dysthymia.
Biological Psychiatry, 42, 740-743.
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Janakiramaiah, N., Gangadhar, BN., Naga Venkatesha Murthy, P.J., Harish, M.G., Subbakrishna D.K., Vedamurthachar A. (2000).
Antidepressant efficacy of Sudarshan Kriya Yoga (SKY) in melancholia: a randomized comparison with Electroconvulsive therapy (ECT) and Imipramine. Journal of Affective Disorders. 57(1-3):255-9.
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Bhatia, M., Kumar, A., Kumar, N., Pandey, R.M., and Kochupillai, V. (2003).
Electrophysiologic evaluation of Sudarshan Kriya: an EEG, BAER, and P300 study. Indian J. Physiol. Pharmacol. 47, 157-163.
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Sharma, H., Sen, S., Singh, N.K. Bhardwaj, V. Kochupillai, N. Singh (2003).
Sudarshan Kriya practitioners exhibit better antioxidant status and lower blood lactate levels. Biological Psychology 63:281-291.
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Gerbarg, P.L., and Brown, R.P. (Oct. 2005).
Yoga: A breath of relief for Hurricane Katrina refugees. Current Psychiatry 4, 55-67.
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Kochupillai, V., Kumar, P., Singh, D., Aggarwal, D., Bhardwaj, N., Bhutani, M., DAS, S.N. (2005)
Effect of rhythmic breathing (sudarshan kriya and pranayam) on immune functions and tobacco addiction. Ann N Y Acad Sci. 1056:242-52.
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Vedamurthachar, A., Janakiramaiah, N., Hegde, J.M., Shetty, T.K., Subbakrishna, D.K., Sureshbabu, S.V., Gangadhar, B.N. (2006)
Antidepressant efficacy and hormonal effects of Sudarshan Kriya Yoga (SKY) in alcohol dependent individuals. J Affect Disord. 94, 249-253.
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Brazier, A., Mulkins, A., Verhoef, M. (2006)
Evaluating a yogic breathing and meditation intervention for individuals living with HIV/AIDS. Am J Health Promot. 20, 192-195.
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Sageman, S., and Brown, R. 2006.
Free at Last, in DSM-IV-TR Case Book Volume 2, edited by R.L. Spitzer, M.B. First, J.B.W.Williams, M. Gibbon. American Psychiatric Publishing, Inc. Washington, DC. 2006. pp.109-121.
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Kjellgren, A, Bood, SA, Axelsson, K, Norlander, T, Saatcioglu, F.(2007).
Wellness through a comprehensive Yogic breathing program - A controlled pilot trial. BMC Complement Altern Med. 7:43-50
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Sharma H, Datta P, Singh A, Sen S, Bhardwaj NK, Kochupillai V, Singh N. (2008)
Gene expression profiling in practitioners of Sudarshan Kriya. J Psychosom Res. 2008 Feb;64(2):213-8
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Descilo, T., Vedamurtachar. A., Gerbarg, P. L., Nagaraja, D., Gangadhar, B. N., Damodaran, B., Adelson, B., Braslow, L. H., Marcus, S., Brown, R. P. (2009).
Effects of a yoga breath intervention alone and in combination with an exposure therapy for post-traumatic stress disorder and depression in survivors of the 2004 South-East Asia tsunami. Acta Psychiatr Scand., in press.
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