**Acknowledgements**

I would like to express my thanks to the graduated students, Yong-Shang Chen and Qi-Wen Lin who have, in brainwaves' experiments, helped me in the course of preparing this study. In particular, I wish to thank Professor Em. Yoichi Ando, who kindly gave me directions on my brain research and data analysis methodology. I am also indebted to the Ministry of Science and Technology Taiwan, for their 2 years period (2007 and 2012) of financial support to complete this research. Meanwhile, the application conformed to academic ethics for the conduct of research. Moreover, during the brainwave experiments, the subjects were assured of their safety and told the procedure was non-invasive. Special thanks are due to my many colleagues for their participation in the experiments involving the subjective judgments and the brainwaves' recordings.
