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Man's brain is the storage battery of energy, the seat of consciousness and the organ of the mind. From it are transmitted by nerve fibers, energy for the functional activity of all organs and the vital metabolism of all tissue cells. In it are localized areas for the reception of energy and the perception of sensations.
A sane brain is one in which all its cells and cell derivatives, fibers and other material substances are in a normal condition chemically, physically and vitally.
Chemic analysis of the different parts of the brain is not alone sufficient to enable the neurologist to judge of its sanity, nor is a microscopic examination adequate. Because neither will reveal the relative position of molecules in a cell, or atoms in a molecule, upon which in my opinion the normal function of the parts depends, as also the kind, number and shape of the molecules,
DRAKE GW. MAN'S BRAIN AND MIND. THE FORMER SOMETIMES INSANE, THE LATTER NEVER. JAMA. 1896;XXVII(16):840–842. doi:10.1001/jama.1896.02430940010001c
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