Average spectral analysis of EEG signal from imagined writing

Electroencephalogram (EEG) is a tool to record and measure activity of the brain. The spontaneous electrical activity of the brain causes by ionic current flows within the neurons of the brain is collected from electrodes that are placed on the scalp. Analysis on EEG can help us to study the relation between motor imaginary and actual movement during a specific task. EEG data recorded during actual writing and imagined writing were analyzed using Average Spectrum by averaging the spectrum computed (using Fast Fourier Transform) over the number of frames. Result showed that there is similarity in the EEG signals obtained during actual writing and imagined writing.