Need a little help with couple of psychology questions... How did the influence of animal psychology on behaviorism differ from the influence of functional psychology? The 20 th century for psychology was changing. The idea of introspection was no longer. Functionalists began to modify the work on Wundt and Titchener making a new form of psychology. Functionalists were not looking to rid structuralism, but instead were building upon it. What is your understanding of both structuralism and functionalism? What does Priscilla the Fastidious Pig have to do with the history of psychology? By what techniques was this animal trained? Describe the three stages in the evolution of the behaviorist school of thought… .