In several ways, the performance of the Gestalt psychologists labored as a forerunner to the rise of cognitive psychology in America. Behaviorism developed at the beginning of the 20th century and converted into a dominant force in American psychology. John B. Watson and B. F. Cognitive Championed by psychiatrists, cognitive psychology concerns the consideration of physical mental methods—all of the notions that go on inside your understanding, including knowledge, reasoning, consciousness, awareness, communication, problem-solving, and learning.