For the first time, the winners received cash prizes $10 trillion, but in Zimbabwe dollars. So they'll each get about four U.S. dollars.
The awards ceremonies are usually silly, and this year's was no different. It included a mini-opera and a contest to win a date with a Nobel laureate.
The winners will give short speeches Saturday at MIT.
The psychology prize went to the experiment that found people who think they are drunk also think they are attractive, done by Laurent Bgue, Oulmann Zerhouni, Baptiste Subra and Medhi Ourabah of France and Brad Bushman, a professor at Ohio State University who also teaches in the Netherlands.
The dung beetle navigation experiment won the joint prize in biology and astronomy, given to Marie Dacke, Emily Baird, Marcus Byrne, Clarke Scholtz and Eric Warrant, who work in Sweden, Australia, South Africa, the United Kingdom and Germany.
Other winners included Brian Crandall of the U.S. and Peter Stahl of Canada and the U.S., who parboiled a dead shrew, then swallowed it without chewing so they could examine their excrement to see which bones would dissolve in the human digestive system and which would not.