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Title: Dog is conditioned in the laboratory of Ivan Petrovich Pavlov.
Caption: Classical conditioning (also known as Pavlovian or respondent conditioning) refers to a learning procedure in which a biologically potent stimulus (e.g. food) is paired with a previously neutral stimulus (e.g. a bell). In this photograph a dog is conditioned in the laboratory of Ivan Petrovich Pavlov (1849 - 1936), a Russian physiologist known primarily for his work in classical conditioning.
Credit: Album / Universal Images Group / Universal History Archive
Image size: 4556 × 4603 px | 60.0 MB
Print size: 38.6 × 39.0 cm | 1793.7 × 1812.2 in (300 dpi)