The psychology of science is a branch of the studies of science defined most simply as the scientific study of scientific thought or behavior. The field first gained popularity in the 1960s, with Abraham Maslow publishing an influential text on the subject (Maslow, 1966), but this popularity faded, only re-emerging in the 1980s (e.g., Simonton, 1988). Other studies of science include philosophy of science, history of science, and sociology of science or sociology of scientific knowledge.