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Stress is the major factor for numerous mental and physical health disorders. Meditation brings positive changes at psychology and physiology level which helps to reduce the stress. As per the existing research, meditation helps to decrease the anxiety, stress and increase in relaxation, focus and produce other well-being related to psychological level. These changes can be understood by studying the neurophysiological effects of meditation on brainwave signals using EEG (Electroencephalography). The aim of this paper is to review the studies based on neural mechanics using EEG brainwave signals of various meditation practices. The objective of the present work is to study the long term effects of Sudarshan Kriya, a rhythmic breathing technique founded by Sri Sri Ravi Shankar of Art of Living, on the human brain, by studying the response of the brain through Electroencephalogram (EEG) analysis. Hence EEG recording of experts (Who have practiced SK for around 10-15 years) was done. The spectral waveform resulting out of these recordings are analyzed mathematically and programmatically using known string matching algorithm. As a result of this matching, logic patterns of commonality that way be repeated across the spectrum are identified/mined/extracted. Thus the patterns form BLOC (Base level of consciousness) components. The patterns so obtained can now be interpreted and standardized as the effect of Sudarshan Kriya (SK) practice for a long time. The response of EEG so obtained is compared with EEG obtained from music listening experiences which have conventionally used as a source of meditation using the same analytics. So analysis of EEG spectra after sufficiently long practice of SK and music listening and its effect on the brain waves (α,β,δ,ϴ) during a period of 15 minutes is the objective of the present work.
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