John Watson (1920)
Little Albert study of classical conditioning (US: startling loud noise, CS: white rat, CR: fear of white rats)
Edward Thorndike (1874-1949)
Early study of learning; functionalist (focus on how mind functions in adapting to environment)
Early behaviorist: developed law of effect
Ivan Pavlov
Early classical conditioning experiments (dog, bell, drooling)
Behaviorism
Became dominant system of psych in the U.S. after Watson until about 1960
Clark Hull
Theory of motivation (drive reduction theory): suggested that the goal of behavior is to reduce biological drives. Reinforcement occurs when a drive is reduced.