National Geographic : 1966 Apr
Shaved pate bristling with electrodes, expedition chief Andre Laban turns human guinea pig. As red light flickers in the hand-held panel during a test ashore before the dive, sensors record his brain waves. Later, on the bottom, another electroencephalogram will show any effects of pressure and helium atmosphere. This, together with other men tal and physiological records taken under water, revealed an amazing ability by the oceanauts to withstand the fatigue of their long ordeal. "The most modern machines often failed in the depths, but the men, never," says Captain Cousteau. 501 EKTACHROMESBY NATIONALGEOGRAPHICPHOTOGRAPHERBATES LITTLEHALES© N.G .S.