Who is the noted psychologist who trained a dog to salivate to the sound of a bell?

The noted psychologist who trained a dog to salivate to the sound of a bell is Ivan Pavlov. His experiments on classical conditioning demonstrated how a neutral stimulus, like a bell, could elicit a conditioned response, such as salivation, when paired repeatedly with an unconditioned stimulus (food). This work laid the foundation for behavioral psychology and the understanding of associative learning.