He was from an academic family with members who were scientists, professors, government officials and physicians. The second is that it is the study of behavior, animal activity that can be observed and measured.
His achievements lead him into the field of physiology and he decided to proceed into the academic side of this subject by becoming a lecturer. James excelled as a teacher provoking enthusiasm and interest from his students. Once he had devised these two new branches he began to actively pursue them.
The American Psychological Association: A historical summary, The essays here resist the temptation to oversimplify torture, drawing together work from scholars in psychology, history, sociology, law, and philosophy, deepening and broadening our grasp of the subject.
The word mind was less mysterious and vague than soul and hence this definition was continued for some time. James had no formal training in this area and often was learning the material himself days or hours before his lectures.
Wundt continued to publish right up to his death in Gradually as the scientific outlook was developed, philosophy started losing its prominence, so also soul. A sense of self was related to Greek philosophers such as Plato and Aristotle to identity, individuality and the knowledge of self.