Cross-Bifrequency Analysis of Cardiorespiratory Interactions at Rest and Zen Meditation
Pei-Chen Lo, Yizhou Wu
International Conference on Systems and Informatics November 1, 2019 DOI: 10.1109/icsai48974.2019.9010252 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Observational study Peer reviewed |
|---|---|
| Population | Human participants in Zen-meditation and resting states |
| Intervention | Zen-meditation |
| Topics | Buddhism Meditation |
| Key findings | Zen-meditation produces strong resonance between heart rate and respiration in the low frequency range (0.05 Hz), while the control group's rest session shows coupling at the same frequency. |
Abstract
SOM (self-organizing map) is modified to encode the cross-bifrequency map that evaluates the cardiorespiratory interactions at Zen-meditation and resting states. The effectiveness of meditation on stress manipulation has aroused the attention of researchers. Cardiovascular and respiratory systems are very important in manipulating both mental and physical health in the stressful environment. Cross-bispectral analysis, applied to heart-rate (HR) and respiratory (RP) sequences, quantifies the degree of phase coupling between different spectral components of two signals. The resulted cross-bifrequency map reveals the property of quadratic coupling between two oscillators, the cardiac and respiratory systems. Conventional SOM weights equally each attribute of the input (feature) vector. However, some attributes of the input vector may play a more decisive role in recognition task. We accordingly propose the input-weighted SOM (IwSOM). According to the IwSOM classification, rest session of control group is characterized by a series of coupling frequencies of which the respiratory rate (RR) is in resonance with HR at 0.05 Hz. The Zen-meditation bifrequency exhibits strong resonance between HR and RP in the same low frequency range.
Comparable studies
Other observational and cohort studies on buddhism, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| AN ELECTROENCEPHALOGRAPHIC STUDY ON THE ZEN MEDITATION (ZAZEN) Zen priests and disciples of Zen sects of Buddhism | 1966 | Observational study | n = 48 |
| “Thinking about Not-Thinking”: Neural Correlates of Conceptual Processing during Zen Meditation Regular Zen practitioners and matched control subjects | 2008 | Observational cohort | |
| Individual Trait Anxiety Levels Characterizing the Properties of Zen Meditation Healthy adults who had not previously practiced any form of meditation | 2004 | Observational cohort | n = 22 |
| Zen meditation, Length of Telomeres, and the Role of Experiential Avoidance and Compassion 20 Zen meditation experts and 20 healthy matched non-meditators | 2016 | Observational cohort | n = 40 |
| EEG dynamics of experienced Zen meditation practitioners probed by complexity index and spectral measure Experienced Zen meditation practitioners and matched controls | 2009 | Observational cohort | n = 46 |