Eye movement or blinks usually produce large electrical potentials, generating significant electrooculographic (EOG) artifacts in recorded EEG signals. Removal of EOG artifacts is nontrivial because those artifacts overlap in frequency and time domains with EEG signals. Fortunately, the effect of EOG artifacts on EEG signals is found most significantly in low frequency bands such as δ, θ and α [6]. Eye blinking generates spike-like shaped signal waveforms with their peaks reaching up to 800 μV and occurs in a very short period of 200–400 ms [7]. Meanwhile, artifacts generated by eye movement are square-shaped, smaller in amplitude but last longer in time and concentrate in lower frequency bands [8].