On another, a fever chart showing orders and completed trades scrolls along like the electroencephalogram of an agitated 2-year-old.

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As part of their training, Gervais and his colleagues hook up athletes to electrodes and perform a baseline qEEG: a quantitative electroencephalogram.

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To supplement the history, there is a relatively new physical test called the quantitative electroencephalogram, or qEEG, that is quite reliable in helping to diagnose ADD.

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The scientists used an EEG (electroencephalogram) to measure electrical activity in an area of the brain called the prefrontal cortex, which is involved in judgment and motivation.

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Dr Rao's team began by programming a humanoid robot with simple behaviours which users could then select with a wearable electroencephalogram (EEG) cap that picked up their brain activity.

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Casting around for a dissertation topic, the student, Eugene Aserinsky, decided to hook sleepers up to an early version of an electroencephalogram machine, which scribbled across half a mile of paper each night.

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