Ethics in Psychology- Makaylah Dunn By Makaylahdunn4 Period: 6500 BCE to 6500 BCE trephination Period: 1932 to 1972 Tuskegee Syphilis study Period: 1935 to 1945 nazi concentration camp experiments Scientists did several experiments on blacks, homosexuals, and jews without their consent and without medication. those experiments soon killed them Period: 1945 to 1946 Nuremberg code Ethical principles to guide future research on human participants