Salat and brainwave signal analysis

Abstract

Salat is one of the ways for the Muslims to worship 'Allah' (God). This study investigates the brainwave signal after salat using Electroencephalograph (EEG) signal analysis and autonomic nervous activity. Twenty samples of EEG signal from five respondents (males with age range from 22 to 23 years old) were selected, and they were all free from cardiac, pulmonary, metabolic and other disease that would cause autonomic nervous system dysfunction. The analysis of the acquired EEG signal is done by comparing the samples of EEG signal between the activities after salat and after listening to the music using Principal Component Analysis (PCA) and Fast Fourier Transform (FFT) method. The highest amplitude of the power spectrum distribution was observed in the gamma band on EEG compared to other bands (delta, theta, alpha and beta) for both activities. It shows that these five subjects have a high gamma band after salat compared to after listening to music. It is suggested that when Muslim perform salatI they tend to forget all the worldly matters and thinks they are standing in front of the 'Allah'. This eventually help them to break their stress for a few times, hence reducing its intensity to facing the worlds' matter after salat. © Universiti Teknologi Malaysia.