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Scientists discover workings of brain's 'GPS System' - Scientists have discovered how the brain's internal system works to determine the body's location as it moves through its sur
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The study from researchers at Princeton University found that certain position-tracking neurons - called grid cells - ramp their activity up and down by working together in a collective way to determine location. Grid cells are neurons that become electrically active, or "fire," as animals travel in an environment. First discovered in the mid-2000s, each cell fires when the body moves to specific locations, for example in a room. The neuronal locations are arranged in a hexagonal pattern like spaces on a Chinese checker board and together the grid cells form a representation of space according to David Tank, Princeton's Henry L Hillman Professor in Molecular Biology and leader of the study. Click on the image or title to learn more.