Nobel Prize in Medicine Awarded to Scientists for Discovering Brain's 'GPS'

A trio of scientists has been awarded this year's Nobel Prize in Physiology or Medicine for their work related to nerve cells that create spatial maps in the brain to help us navigate through our environments.

Half of the Nobel Prize in Medicine goes to John O'Keefe, and the other half goes jointly to May-Britt Moser and her husband Edvard I. Moser "for their discoveries of cells that constitute a positioning system in the brain," according to an announcement by the Nobel Foundation in Stockholm today (Oct. 6).

In 1971, O'Keefe discovered the first component of the brain's "inner GPS" through experiments in rats. He found that a nerve cell, called a place cell, in the hippocampus became active when a rat was in a certain place, while other "place" nerve cells turned on when the rodent moved to other places. He realized these cells were building maps inside the brain's hippocampus of various places in the rat's environment. [7 Revolutionary Nobel Prizes in Medicine]

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Jeanna Bryner is managing editor of Scientific American. Previously she was editor in chief of Live Science and, prior to that, an editor at Scholastic's Science World magazine. Bryner has an English degree from Salisbury University, a master's degree in biogeochemistry and environmental sciences from the University of Maryland and a graduate science journalism degree from New York University. She has worked as a biologist in Florida, where she monitored wetlands and did field surveys for endangered species, including the gorgeous Florida Scrub Jay. She also received an ocean sciences journalism fellowship from the Woods Hole Oceanographic Institution. She is a firm believer that science is for everyone and that just about everything can be viewed through the lens of science.