DR ARTHUR C. TSAI is an Associate Research Fellow. He received his PhD degree in electrical engineering from the National Taiwan University. His current research work is developing and improving methods for estimating EEG/MEG brain sources, and EEG/MEG signal processing. His software named EMSICA is a main EEG/MEG analysis tool combining source imaging and signal processing . His research interests include human learning and memory, EEG source analysis, independent component analysis, artificial neural network models, theory of learning processes, and neuro-fuzzy systems.