Short-Term Effect of Spiritual Music on Heart Rate Variability in Medical Students: A Single-Group Experimental Study

BACKGROUND

There are ancient texts and modern studies alluding to the therapeutic benefits obtained from listening to music. Studies have shown that chanting "OM" has a relaxing effect by causing parasympathetic dominance, limbic deactivation, and decreasing the brain's dopamine levels. This research aims to study the effect of listening to OM chanting on the cardiovascular system and heart rate variability and its possible use as a stress buster among medical students.

MATERIALS AND METHODS

Fifty medical undergraduates were selected for the study. After a 20-minute relaxation, a lead 2 electrocardiogram (EKG) was recorded for 10 minutes. Their blood pressure (BP) and heart rate were measured. The subjects were then made to listen to OM chanting for 20 minutes, immediately after which their BP and heart rate were measured. This was followed by another 10-minute lead 2 EKG. The EKGs recorded were then used to calculate the standard deviation in N-N interval (SDNN), total power, high-frequency power, and low-frequency power.

RESULTS

The study reported a significant decrease in blood pressure and heart rate and a significant increase in SDNN and total power. There was also an insignificant increase in low frequency and an insignificant decrease in high frequency.

CONCLUSION

 This study provides insight into the importance of spiritual music therapy in the maintenance of mental as well as cardiovascular health among medical students.

Om chanting modulates the processing of negative stimuli: Behavioral and electrophysiological evidence

Previous studies have suggested that Om chanting, a type of meditation, can relieve individuals' negative emotions. However, the dynamic aspects of neural processes in the processing of the negative stimuli while Om chanting are still unclear. In this study, we recruited 33 healthy undergraduate students without meditation experience and recorded event-related potentials (ERPs) to unpleasant and neutral images when they performed Om chanting and viewing task. The behavioral results showed that the unpleasant images were rated as less unpleasant and arousing in the condition of Om chanting than while passive viewing, and the rates were not different between the two conditions for the neutral images. Analyses of the ERP responses to the emotional stimuli revealed that Om chanting decreased P1 and late positive potential (LPP) amplitudes for the neutral images but not for the unpleasant images. We speculated that Om chanting might reduce vigilance to the neutral stimuli, whereas for the negative stimuli, they automatically captured all available attentional resources and led to a failure in observing the regulating effect of Om chanting. These observations suggest that Om chanting modulates individuals' affective evaluations to the negative stimuli and alters early visual and late neural processing of the stimuli.

Phenomena of Psychological Sufferings Among Nepalese Stroke Survivors and Analysis of Applicability of Samkhya Philosophy for Enhancing Their Psychological Wellbeing

Introduction

Psychological suffering is commonly found among stroke survivors, particularly in the acute stage.

Objectives

This study aimed to explore the phenomenon of psychological sufferings of stroke survivors and analyze the applicability of Samkhya philosophy for enhancing their psychological wellbeing.

Methods

A qualitative study was conducted at a university hospital of Nepal among 16 stroke patients in the acute stage, selected by purposive sampling. Data collection was done by using semi-structured interviews. Data were analyzed using deductive content analysis. Additionally, the analysis of Samkhya philosophy was done by using descriptive literature review from online databases.

Results

Stroke survivors in the acute stage experienced psychological sufferings, which were analyzed as intrinsic, extrinsic, and divine based on Samkhya philosophy. The intrinsic sufferings were (a) shock and denial with a sudden loss of normal body function, (b) worry about the possibility of lifelong disability and future life, and (c) fear and concern about the consequences of the disease to self. The extrinsic sufferings consisted of (a) worry when thinking about dependent family members and (b) feelings of making trouble or being a burden to the family members because of their dependency. The divine suffering consisted of feeling of being a burden caused by distress resulting from an inability to perform religious rituals. Samkhya philosophy explains the methods of relieving these sufferings by using yoga practice.

Conclusion

Psychological sufferings are prevalent among Nepalese stroke survivors, and Samkhya philosophy might be one of suitable strategies to relieve these sufferings of the Hindu stroke survivors in the acute stage, and promote their psychological wellbeing. This study recommends integrating yoga in caring for stroke patients in the acute stage to promote psychological wellbeing.