John B. Watson
John B. Watson was an influential American psychologist who founded behaviorism, a school of thought that focuses on observable behaviors rather than internal mental processes, revolutionizing psychology in the early 20th century. In modern contexts, his ideas are applied in areas like therapy, advertising, and child development, though they sparked debates on ethics and human nature.
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Watson's 1920 Little Albert experiment was the first to demonstrate classical conditioning in a human child, showing how a neutral stimulus like a white rat could be paired with a loud noise to induce fear, influencing therapies for phobias worldwide. This study, conducted with just one subject, has been cited over 10,000 times in academic literature, yet it led to major ethical reforms in psychology research by highlighting the need for participant protection.
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