The more traditional topics (e.g., the functions of the nervous system, sensation, the perception of time, space, objects, and reality, imagination, conception, reasoning, memory, association, attention, emotions, and will) were rarely dealt with in a traditional manner; and a whole series of non-traditional topics (e.g., habit, the stream of thought, consciousness of self, discrimination and comparison, the production of movement, instinct, and hypnotism) were introduced in ways that forever changed the discipline.