Preprocessing-Oriented EEG Analysis for Measuring Stress and Anxiety Alleviation curtailment by Mantra Meditation
2025 IEEE 1st International Conference on Recent Trends in Computing and Smart Mobility December 5, 2025 Vandana Roy, P. Shukla
Mantra chanting reduces stress and anxiety, and electroencephalography (EEG) can measure the associated neurophysiological changes, but EEG recordings are often contaminated by noise from power lines, motion, and biological signals. A new preprocessing framework automatically classifies and applies the best denoising method for each EEG channel. Comparing several filters, the Chebyshev Notch Filter combined with Spatial Filtering and Frequency-Domain Filtering performed best, improving peak signal-to-noise ratio by 9.13%, structural similarity index by 3.47%, and signal-to-noise ratio by 38.74% for the Fp1 channel. This framework supports real-time mental health monitoring based on EEG.