Analysis of Electroencephalogram for Cognitive Effects of Human Being Before and After Meditation

The meditation is significantly suggested by the medical practitioners and health care organization for the individuals to relieve the stress and pain. The meditation has severe impact of human beings brain functions. Thus, it is required to analyze the neuro-cognitive effects of meditation using the more effective tool called Electroencephalogram (EEG) to record the brain activities of meditators. In this paper, it is analyze the EEG for neuro-cognitive effects on human being for before and after a month of meditation intervention for 15 subjects. The EEG analysis is done using the energy spectral analysis, statistical and spatial features. From the analysis it is found that, the variance for before meditation (16.8133) is higher and variance for after meditation (7.4628) is lower. Mahalanobis distance for before meditation (0.0848) is lower and for after meditation (0.1537) is higher. The p-value is less than significance level (p <; 0.05) for both features indicating that, good discrimination between control and meditators group. The Delta, alpha and theta rhythms' energy increases in EEG after meditation. It is observed that after a month of regular meditation, increases alpha and theta energy in a frontal lobe. Hence relaxation improves after meditation and the brain cognitive function excel in meditators.