Examines how the contributions of animal research are presented in eight of the most widely used introductory psychology textbooks. The authors show that, with the exception of principles of conditioning and learning, the contributions of animal research are often not explicitly acknowledged or are obscured to look like they had been obtained with…

This paper introduces seven principles of learning, enduring over the last five centuries of psychological thought, to discuss the evolution of the "Biophyche" (the brain in action) in the development of humans and other large organisms. It describes the conditioning theories of Darwin, Pavlov, and Thorndike and critically reviews the…