Do People Really Walk in Circles?

sciam…from Scientific American

“Yes, people do really walk in circles—but only when stripped of important visual clues, such as the sun or moon, according to a paper published online today in Current Biology.

“To test the common wisdom, Jan Souman, a research scientist at the Max Planck Institute for Biological Cybernetics, and his team sent test subjects out into a German forest and the Sahara Desert to see if they could follow directions to walk in a straight line—some on sunny days others on cloudy days or at night. Subjects were monitored via GPS over the course of hours (and followed by an experimenter for safety).”