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Effect of Yoga Nidra on EEG (Electro - Encephalo - Graph)

 

Research Paper By -
Yogacharya Vishwas Mandlik, Dr. Premchand Jain, M.D.D.P.M.F.I.P.S.Consulting Psychiatrist, Dr. Kiran Jain, M.S. (SURGEON) Arihant Nursing Home

Contact Address -

Yoga Vidya Dham, Yoga Bhavan, Nasik 422 005, Maharshtra, INDIA

 

Background

 

Yoga Nidra is very powerful process of meditation and relaxation. It is adopted by Paramhansa Swami Satyanand Saraswati of Bihar Yog School, Mungher. The practice of Yoganidra opens up deeper state of mind. Each time one practices Yoganidra, ones level of consciousness deepens and become more aware of subconcious mind and ultimately gives more relaxation. And also gets relieved of stress from the mind.

 

Aim

 

To study the effect of Yognidra on the activity of brain with the help of Electro-Encephalograph. (EEG)

 

Method

 

20 subjects were chosen from yog-nidra class. They were given practice of Yoganidra daily for one month

 

Design

 

Eegs were recorded prior to study,during Yognidra & after one month.

 

Results

 

Initial EEG showed Beta activity prominantly with intermittent Alpha activity. With the advancement of Yoganidra Beta activity was slowly replaced by Alpha activity and still further by smooth well formed Alpha activity. After 30 sessions of Yoganidra gain of alpha activity was better and with further advancement of yoganidra intermittent Theta activity was noted intermixed with alpha activity suggestive of deep state of relaxation.

 

Discussion

 

EEG measures minute electrical activity in the brain in the form of waves. The frequency of brain activity waves has been shown to alter according to the state of conciousness and state of mind the subject is in.

Beta activity is normally noted in the awake working state. With physical relaxation beta activity is taken up by alpha activity, and as the person goes into dofferent stages of sleep the activity changes to theta and also may exhibit delta activity in deep sleep.

 

Keywords

 

EEG, YOGANIDRA, BRAIN ACTIVITY.

 

TYPE OF WAVES IN EEG

BRAINWAVES
CYCLES /SECOND
LEVEL OF CONCIOUSNESS
Beta
13 - 30
Externally directed attention, mental activity, anxiety. Rational mind use, also some schizophrenias and manias
Alpha
8 - 12
Internally directed attention with closed eyes, relaxed state of body and mind, psychosis
Theta
4 - 7
States of creativity, access to unconscious material meditation. REM sleep, in children
Delta
0.5 - 3
Deep and dreamless sleep, new born babies, some neurological disorders

 

 

 

 

 

 

 

 

 



Brain View

 

 

Initial gain shows Beta activity mixed with apiky alpha activity. Beta is more anteriorly with low voltage

 


With advancement, Beta disappeared and is replaced by smooth well modulated alpha activity. Even anteriorly alpha activity is noted.

 



This graphs shows theta activity for a fraction of second intermittently.

 



Smooth well modulated alpha activity.