Word: neurochemist
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Dates: during 1960-1969
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...Neurochemist Georges Ungar based his work on the natural preference of rats and mice for the dark; given a choice between entering a lighted or a dark enclosure, the rat will almost invariably enter the dark one. After constructing a short passageway between a translucent plastic box and a black box with an electrical grid for a floor, Ungar placed rats one at a time into the light box. As is their nature, the rats scurried into the dark box. They were in for a rude shock. Dropping a gate that prevented them from running back into the tunnel, Ungar...