Cumulative Record. Chapter 50: Some Responses to the Stimulus “Pavlov”. Quote 11

[Pavlov] turned too quickly to inferences about the nervous system. The subtitle of the Anrep translation is “An Investigation of the Physiological Activity of the Cerebral Cortex.” Pavlov never saw any of that activity; he was studying merely what he took to be its products. His facts were about behavior, and his effort to represent them as facts about the nervous system interfered with his reports and must have affected the design of his experiments. (pp. 650-651)