Bandura's introduction to academic psychology came about by a fluke; as a student with little to do in the early mornings, he took a psychology course to pass the time, and became enamored of the subject. Bandura graduated in three years, in 1949, with a B.A. from the University of British Columbia, winning the Bolocan Award in psychology, and then moved to the then-epicenter of theoretical psychology, the University of Iowa, from where he obtained his M.A. in 1951 and Ph.D. in 1952. Arthur Benton was his academic adviser at Iowa, giving Bandura a direct academic descent from william James, while Clark Hull and Kenneth Spence were influential collaborators. During his Iowa years, Bandura came to support a style of psychology which sought to investigate psychological phenomena through repeatable, experimental testing. His inclusion of such mental phenomena as imagery and representation, and his concept of reciprocal determinism, which postulated a relationship of mutual influence between an agent and its environment, marked a radical departure from the dominant behaviorism of the time. Bandura's expanded array of conceptual tools allowed for more potent modeling of such phenomena as observational learning and self-regulation, and provided Psychologists with a practical way in which to theorize about mental processes, in opposition to the mentalistic constructs of psychoanalysis and personology.