This book will interest not only graduate school students, scientists, and engineers but also newcomers to this Cybernics field. Cybernics plays a significant role in coping with an aging society using state-of-the-art technologies. This is a new interdisciplinary field for studying technologies that enhance, strengthen, and support physical and cognitive functions of human beings, based on the fusion of human, machine and information systems. The design of a seamless interface for interaction between the inside and outside of the human body is described in this book from diverse aspects such as physical, neuro-physiological, and cognitive levels.
