P300 amplitude and antidepressant response to Sudarshan Kriya Yoga (SKY)

Aim:The present study focuses on analyzing the effects of Sudarshan Kriya yoga (SKY) on EEG as well as ECG signals for stress regulation. To envision the regulation of stress Determination Test (DT) has been used. We have chosen a control group for contriving a cogent comparison that could be corroborated using statistical tests.Subjects and Methods:A total of 20 subjects were taken in the study, of which 10 were allotted to a control group. Electroencephalograph was taken during a DT task, before and after SKY the sky session with 30 days of SKY session given to the experimental group. No SKY was given to the control group.Results:We quantified mental stress using EEG, ECG and DT synergistically and used SKY to regulate it. We observed that alpha band power decreases in the frontal lobe of the brain with increasing mental stress while frontal brain asymmetry decreases with increasing stress tolerance.Conclusions:These EEG, ECG and DT shows a significant decrement in mental stress and improvement in cognitive performance after SKY, indicating SKY as a good alternative of medication for stress management.

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“…Today, its effectiveness is universally acclaimed that it reduces stress, anger, anxiety, and depression bringing one in a pleasant state. [1314]…”

Section: Introductionmentioning

confidence: 99%

Mental stress: Neurophysiology and its regulation by Sudarshan Kriya Yoga

et al. 2017

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“…Like other types of yoga and meditation, studies with Sudarshan Kriya meditators have shown increased frontocentral coherence in the b band and posterior coherence in the a band during the practice of Sudarshan Kriya for meditators, suggesting increased connectivity and efficient information processing in the brain. Sudarshan Kriya has also been used as intervention for persons with dysthymia, resulting in increase of P300 amplitude among patients to match those from the control group [11].…”

Section: Introductionmentioning

confidence: 99%

Concentrative meditation enhances preattentive processing: a mismatch negativity study

Srinivasan

Baijal

2007

NeuroReport

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The mismatch negativity (MMN) paradigm that is an indicator of preattentive processing was used to study the effects of concentrative meditation. Sudarshan Kriya Yoga meditation is a yogic exercise practiced in an ordered sequence beginning with breathing exercises, and ending with concentrative (Sahaj Samadhi) meditation. Auditory MMN waveforms were recorded at the beginning and after each of these practices for meditators, and equivalently after relaxation sessions for the nonmeditators. Overall meditators were found to have larger MMN amplitudes than nonmeditators. The meditators also exhibited significantly increased MMN amplitudes immediately after meditation suggesting transient state changes owing to meditation. The results indicate that concentrative meditation practice enhances preattentive perceptual processes, enabling better change detection in auditory sensory memory.

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“…Also, neither the severity of depression nor the severity of biological dysfunction influenced the quick response time or degree of effectiveness of SK&P. The antidepressant effect of SK&P was exerted in about three weeks (Naga Venkatesha Murthy et al, 1998).…”

Section: Discussionmentioning

confidence: 90%

“…SK&P has been most widely studied in depression; upon practicing SK&P, 68% dysthymic patients (Bhatia et al, 2003) and 73% patients suffering from melancholic depression (Naga Venkatesha Murthy et al, 1998) showed remission. SK&P takes three weeks in showing its antidepressant effects (Naga Venkatesha Murthy et al, 1998) and in patients suffering from dysthymia and melancholic depression after 90 days of using SK&P, P300…”

Section: Introductionmentioning

confidence: 99%