4. The look of eugh
Do emotions evoke characteristic facial expressions? Is there one expression everyone uses to convey shock, another for disgust, and so on? In 1924, Carney Landis, a graduate student in psychology at the University of Minnesota, designed an experiment to find out.
Landis brought subjects into his lab and drew lines on their faces with a burnt cork so that he could more easily see the movement of their muscles. He then exposed them to a variety of stimuli designed to provoke a strong emotional reaction. For instance, he made them smell ammonia, listen to jazz, look at pornographic pictures and put their hand into a bucket of frogs. As they reacted to each stimulus, he snapped pictures of their faces.
The climax of the experiment arrived when Landis carried in a live white rat on a tray and asked them to decapitate it. Most people initially resisted his request. They questioned whether he was serious. Landis assured them he was. The subjects would then hesitantly pick the knife up and put it back down. Many of the men swore. Some of the women started to cry. Nevertheless, Landis urged them on. In the pictures Landis took, we see them hovering over the rat with their painted faces, knife in hand. They look like members of some strange cult preparing to offer a sacrifice to the Great God of the Experiment.
Two-thirds of the subjects eventually did as they'd been told. Landis noted that most of them performed the task clumsily: "The effort and attempt to hurry usually resulted in a rather awkward and prolonged job of decapitation." Even when the subject refused, the rat did not get a reprieve. Landis simply picked up the knife and decapitated the rodent himself.
With hindsight, Landis's experiment presented a stunning display of the willingness of people to obey orders, no matter how unpalatable. It anticipated the results of Stanley Milgram's more famous obedience experiment at Yale University by almost 40 years.
Next - Reversing death

