In the study, he and colleagues focused on an area of the brain called the left dorsolateral prefrontal cortex (DLPFC), which has been strongly implicated in our ability to play with numbers in our heads.

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In her left brain, the mathy part of her cerebral cortex, lay the calculations that caused her to derive that 5% estimate.

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Perhaps for similar reasons, the control system of the brain, which includes areas like the left lateral prefrontal cortex, gets particularly good press.

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He discovered that if a person who has long been paralyzed thinks "move my arm to the left, " the region in the brain responsible for moving arms--the motor cortex--fires away as if everything were connected.

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Most of Pickens' brain activity during the living-nonliving test was on the left side of his frontal cortex, exactly where young brains would handle the job.

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The results suggest that these emotions are handled in the medial prefrontal cortex (the middle of the front of the frontal lobe), the left posterior superior temporal sulcus (one of the furrows towards the side of the brain) and the visual cortex (towards the back of the brain).

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