Analysis of heart rate variability signal in meditation using second-order difference plot

Goswami, Damodar Prasad; Tibarewala, D. N.; Bhattacharya, D. K.

doi:10.1063/1.3586270

Cited by 18 publications

(14 citation statements)

References 28 publications

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“…Most of the meditation techniques work by affecting the Autonomic Nervous system (ANS), in turn regulating many organs and muscles, controlling functions such as the heartbeat, sweating, breathing, and digestion. Heart rate variability (HRV) is a popular noninvasive tool to assess different heart conditions and now it has been observed that it reflects some psychological conditions also [5]. The analysis of heart rate variability (HRV), the variation of period between consecutive heart beats, provides valuable information to assess the ANS.…”

Section: Introductionmentioning

confidence: 99%

A new technique for the classification of pre-meditative and meditative states

Dey¹,

Mukherjee²,

Palit

et al. 2011

2011 International Conference on Communication and Industrial Application

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The classification of HRV signal through the geometry of Poincaré′ plot and its quantification is one of the popular techniques in nonlinear analysis. The quantification is generally done by fitting an 'ellipse' on the constructed Poincaré plot of HRV signal. However, most of the meditative and pre-meditative states cannot be distinguished from Poincaré′ plot. In this paper we introduce a new notion called modified angle map by which it is possible to classify the meditative and pre-meditative states significantly.

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Section: Introductionmentioning

confidence: 99%

A new technique for the classification of pre-meditative and meditative states

Dey¹,

Mukherjee²,

Palit

et al. 2011

2011 International Conference on Communication and Industrial Application

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“…The length of the major axis was found to increase in the meditation state compared to premeditation state and hence the two states to have different physiology. 20 Goswami et al 21 used second-order difference plot to visually differentiate meditative state from normal physiological state. They found that in the state of meditation the rates of HRVs correlate with each other and the external stimuli do not affect the physiological conditions.…”

Section: Introductionmentioning

confidence: 99%

“…As an implication they concluded that the meditative states have a completely different physiology from the non-meditative states. 21 Poincaré plot analysis and sequence trend analysis. An important advantage of both of these methods is that they are independent of the stationarity of the RR interval time series.…”

Section: Introductionmentioning

confidence: 99%

Assessment of dynamic characteristics of cardiac RR intervals during meditation using Poincaré plot and sequence trend analysis

kamath¹

2018

JCCR

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In this paper, we examine dynamic changes in cardiac inter-beat intervals to explore these differences in cardiac control. Moment-to moment changes in RR intervals during premeditation state were compared with the corresponding values during meditation state. For each state, every RR interval was plotted against the previous interval (Poincaré plot) and each change in the inter-beat interval was plotted against the previous change (sequence trend analysis or quadrant analysis plot). The variability in inter-beat intervals is an indicator of the dynamic interaction and the balance between the sympathetic and parasympathetic branches of the autonomic nervous system (ANS). The sympathetic branch decreases the inter-beat intervals, while the parasympathetic branch increases the inter-beat intervals. In this study we evaluated the ANS during two concentration meditation techniques (Kundalini yoga and Chi meditations) using the above two nonlinear methods, namely, Poincaré plot and sequence trend analyses. It is found through both the methods that the complex dynamics of the RR interval series is lowered during meditation. Further, during premeditation state there is parasympathetic dominance while during meditation state there is sympathetic dominance, irrespective of the type of meditation. Kundalini yoga group meditators showed higher differences than Chi group meditators.

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Section: Abstract -2d and 3d Poincaré Plot 3d Frequency Delay Plot mentioning

confidence: 99%

“…Accordingly, functions of heartbeat, sweating, breathing, and digestion are controlled by the ANS. Recent studies highlighted the psycho-physiological aspects of meditation and its effect [5][6][7][8][9][10][11][12][13][14][15].Typically, the HRV is a popular non-invasive tool to assess different conditions of heart [16][17][18][19]. Nowadays, it is observed that HRV reflects some psychological conditions [20,21].…”

mentioning

confidence: 99%

Chinese-chi and Kundalini yoga Meditations Effects on the Autonomic Nervous System: Comparative Study

Dey¹,

Bhattacha²,

Tibarewala³

et al. 2016

IJIMAI

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-Cardiac disease is one of the major causes for death all over the world. Heart rate variability (HRV) is a significant parameter that used in assessing Autonomous Nervous System (ANS) activity. Generally, the 2D Poincare′ plot and 3D Poincaré plot of the HRV signals reflect the effect of different external stimuli on the ANS. Meditation is one of such external stimulus, which has different techniques with different types of effects on the ANS. Chinese Chi-meditation and Kundalini yoga are two different effective meditation techniques. The current work is interested with the analysis of the HRV signals under the effect of these two based on meditation techniques. The 2D and 3D Poincare′ plots are generally plotted by fitting respectively an ellipse/ellipsoid to the dense region of the constructed Poincare′ plot of HRV signals. However, the 2D and 3D Poincaré plots sometimes fail to describe the proper behaviour of the system. Thus in this study, a three-dimensional frequency-delay plot is proposed to properly distinguish these two famous meditation techniques by analyzing their effects on ANS. This proposed 3D frequency-delay plot is applied on HRV signals of eight persons practicing same Chi-meditation and four other persons practising same Kundalini yoga. To substantiate the result for larger sample of data, statistical Student t-test is applied, which shows a satisfactory result in this context. The experimental results established that the Chi-meditation has large impact on the HRV compared to the Kundalini yoga. Keywords -2D and 3D Poincaré Plot, 3D Frequency Delay Plot, Hypothesis Testing By Student t-Test.I. InTRoducTIon M edITaTIon is considered an ancient spiritual practice that has potential benefit on health and well-being [1,2]. It is a complex physiological process, which affects neural, psychological, behavioral, and autonomic functions. It is considered as an altered state of consciousness, which differs from wakefulness, relaxation at rest, and sleep [3,4]. Most of the meditation techniques affect the ANS, thus indirectly regulate several organs and muscles. Accordingly, functions of heartbeat, sweating, breathing, and digestion are controlled by the ANS. Recent studies highlighted the psycho-physiological aspects of meditation and its effect [5][6][7][8][9][10][11][12][13][14][15].Typically, the HRV is a popular non-invasive tool to assess different conditions of heart [16][17][18][19]. Nowadays, it is observed that HRV reflects some psychological conditions [20,21]. The HRV analysis studies the period variation between consecutive heart beats to provide valuable information for the ANS assessment. There are two branches of the ANS, namely i) the sympathetic branch, which increases the heart bits, and ii) the parasympathetic branch, which decreases the heart bits. Thus, the observed HRV is an indicator of the dynamic interaction and balance between these two nervous systems. In the resting condition, both the sympathetic and parasympathetic systems are active with parasympathetic domina...

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Analysis of heart rate variability signal in meditation using second-order difference plot

Cited by 18 publications

References 28 publications

A new technique for the classification of pre-meditative and meditative states

A new technique for the classification of pre-meditative and meditative states

Assessment of dynamic characteristics of cardiac RR intervals during meditation using Poincaré plot and sequence trend analysis

Chinese-chi and Kundalini yoga Meditations Effects on the Autonomic Nervous System: Comparative Study

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