History of ethics in psychology By tcb.03 6500 BCE Trephination 1879 Wilhelm Wundt Laboratory Period: 1932 to 1972 Tuskeegee Syphilis study Period: 1935 to 1945 Nazi Concentration Camp experiments 1938 B.F Skinner - operant conditioning Period: 1945 to 1946 Palace of justice, Nuremberg Germany 1964 Stanley Milgram - obedience 1970 Tearoom Trade study 1971 Zimbardo Prison experiment 1979 National Commission for the protection of human subjects of biomedical and behavioral research 1982 Code of federal regulations Title 45 part 46 1996 HIPPA