Which psychologist is associated with the concept of classical conditioning through the Little Albert experiment?

The association of classical conditioning with the Little Albert experiment is attributed to John B. Watson. In this experiment, Watson and his colleague Rosalie Rayner demonstrated how emotional responses could be conditioned in humans. They took a nine-month-old infant named Albert and conditioned him to fear a white rat by pairing the sight of the rat with a loud, frightening noise. This experiment illustrated how a previously neutral stimulus (the rat) could evoke a fear response through repeated associations with an unconditioned stimulus (the loud noise), thus confirming the principles of classical conditioning.

Watson's work was pivotal in emphasizing the role of environmental factors in shaping behavior and emotional responses, marking a key development in behaviorism. The significance of the Little Albert experiment lies in its demonstration of how conditioning can lead to the development of phobias, extending the ideas of classical conditioning beyond animals to humans. This foundational work has had a lasting impact on both psychology and our understanding of behavioral responses.