Experimental psychology refers to work done by those who apply experimental methods to the study of behaviour and the processes that underlie it. Experimental psychologists employ human participants and animal subjects to study a great many topics, including, among others sensation & perception, memory, cognition, learning, motivation, emotion; developmental processes, social psychology, and the neural substrates of all of these. Experimental psychology emerged as a modern academic discipline in the 19th century when Wilhelm Wundt introduced a mathematical and experimental approach to the field. Wundt founded the first psychology laboratory in Leipzig, Germany. Other early experimental psychologists, including Hermann Ebbinghaus and Edward Titchener, included introspection among their experimental methods. In the middle of the 20th century, behaviourism became a dominant paradigm within psychology, especially in the United States. This led to some neglect of mental phenomena within experimental psychology. This book offers a comprehensive description of the applications of various fields in this subject. The book will be appropriate as a guide for students.