Early this morning, I blearily stumbled onto the CES show floor, barely in command of basic motor functions.

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The 150 or so athletes in USA Cycling's development pool must take an online test that tracks mental and motor functions, to establish a baseline score.

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D2 is found in the frontal cortex (used in thinking), the temporal cortex (speech and motor functions) and the basal ganglia, which smooths out limb movements.

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The 1.4-liter gasoline engine under the hood functions as a generator, creating juice for the electric motor.

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