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Nobel Prize 2014: British scientist John O'Keefe among winners of prestigious award for medicine after discovery of 'brain's internal GPS' | Nobel Prize 2014: British scientist John O'Keefe among winners of prestigious award for medicine after discovery of 'brain's internal GPS' |
(35 minutes later) | |
Three foreign-born scientists who have all worked in the UK have jointly won this year’s Nobel Prize in Physiology or Medicine for their pioneering research into how the brain works out where we are by creating internal “maps” of the real world. | |
John O’Keefe, who was born in the United States but has worked at University College London for more than 40 years, shares the prize with husband-and-wife team May-Britt and Edvard Moser, who were born in Norway but have carried out research in Edinburgh and London. | |
The three researchers share this year’s prize for “for their discoveries of cells that constitute a positioning system in the brain” according to the citation from the Nobel Assembly at the Karolinska Institute. | |
Professor O’Keefe, director of the Sainsbury Wellcome Centre for Neural Circuits and Behaviour at UCL, discovered the first components of the brain’s internal positioning system when he found a type of cell in an area of the brain called the hippocampus that was always activated when a laboratory rat was at a certain place in a room. | |
In a study published in 1971, Professor O’Keefe called these “place cells” and suggested that they were used by the brain to build up a map of the environment. In 2005, the May-Britt and Edvard Moser, who are currently based in Trondheim, Norway, discovered other nerve cells in a nearby part of the brain that were activated when the rat passed certain locations. | |
The two Norwegian scientists found that these locations formed a hexagonal grid with each “grid cell” within the entorhinal cortex of the brain reacting in a unique spatial pattern – collectively the grid cells form a coordinated system that allowed spatial navigation through a complex maze. | |