John Broadus Watson was an influential American psychologist who played a pivotal role in the development and popularization of behaviorism, establishing it as a major psychological school of thought. Born in 1878, Watson advocated for a significant shift in the psychological discipline, arguing that the field should move away from the study of internal mental states and instead focus on objective, observable behavior. He famously articulated this perspective in his landmark 1913 address at Columbia University, titled Psychology as the Behaviorist Views It, which served as a manifesto for the behaviorist movement.\n\nThroughout his career, Watson applied behaviorist principles to a wide range of fields, including animal behavior, advertising, and child rearing. He conducted several highly influential and controversial studies, most notably the 'Little Albert' experiment, which sought to demonstrate classical conditioning in human infants, and the Kerplunk experiment, which investigated sensory and motor learning in rats. Beyond his experimental research, Watson served as the editor of the prestigious journal Psychological Review from 1910 to 1915. His pioneering work fundamentally reshaped the landscape of modern psychology, earning him a lasting legacy as one of the most frequently cited psychologists of the twentieth century.
