As a branch of computational science, theoretical neuroscience or computational neuroscience, deals with the study of the brain with regards to its information processing properties and functions. This field examines the brain while it processes information. Thus, the subject is very important for the study of cognition, learning theory and computational modeling and imaging. This field brings together different areas like psychology, cognitive science, computer science, neuroscience, mathematics, etc. This book outlines the processes and applications of computational neuroscience in detail. The various sub-fields along with technological progress that have future implications are glanced at in it. This textbook attempts to assist those with a goal of delving into the field of computational neuroscience.