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Autonomic changes during "OM" meditation

S Telles1, R Nagarathna, H R Nagendra

  • 1Vivekananda Kendra Yoga Research Foundation, Bangalore.

Indian Journal of Physiology and Pharmacology
|October 1, 1995
PubMed
Summary
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Experienced meditators demonstrated reduced heart rate during meditation compared to non-targeted thinking. This physiological relaxation, alongside increased vascular resistance, suggests heightened mental alertness during meditation.

Area of Science:

  • Physiology
  • Neuroscience
  • Psychology

Background:

  • Meditation is a practice involving focused attention and altered states of consciousness.
  • Understanding the physiological correlates of meditation is crucial for its scientific validation.
  • Autonomic nervous system responses during meditation are not fully elucidated.

Purpose of the Study:

  • To investigate the autonomic and respiratory changes in experienced meditators during a specific meditation technique.
  • To compare physiological responses during meditation (chanting "OM") versus a control period (non-targeted thinking).

Main Methods:

  • Seven experienced meditators (5-20 years) participated in the study.
  • Autonomic and respiratory variables were measured during two conditions: meditation and control.

Related Experiment Videos

  • A paired t-test was used for statistical analysis of heart rate data.

    • Main Results:

    • A statistically significant reduction in heart rate was observed during meditation compared to the control period.
    • Cutaneous peripheral vascular resistance increased comparably during both meditation and control sessions.
    • The findings suggest a state of physiological relaxation coexisting with increased mental alertness.

    Conclusions:

    • Meditation, specifically chanting "OM", induces significant physiological relaxation evidenced by reduced heart rate.
    • The concurrent increase in vascular resistance indicates a state of heightened mental alertness during meditation.
    • These findings support the concept of meditation as a practice that promotes both relaxation and focused awareness.