Top 10 Unethical Psychological Experiments Psychology is a relatively new science which gained popularity in the early 20th century with Wilhelm Wundt. In the zeal to learn about the human thought process and behavior, many early psychiatrists went too far with their experimentations, leading to stringent ethics codes and standards. Though these are highly unethical experiments, it should be mentioned that they did pave the way to induct our current ethical standards of experiments, and that should be seen as a positive. There is some crossover on this list with the Top 10 Evil Human Experiments. Three items from that list are reproduced here (items 8, 9, and 10) for the sake of completeness.