Welly Way

Vella Luigi (Vella L. 1837-1904) was born in Florence in 1877 and educated in Paris. He was a physiologist and studied the mechanism of action of electric discharge on living tissue. For the first time I was able to determine the frequency of the applied current that promotes the greatest muscle contraction. He made a number of valuable observations about the effect of electrical impulses of different frequencies on different organs. Vella’s ideas that the greater the number of impulses and the more often they follow each other, the greater the irritating effect, helped to further elucidate the properties and functions of nerve cells. Vella's teaching also found application in experiments to determine the surface tension of salt solutions. His discovery of the behavior of electrical potentials in the animal body during sleep became the basis for modern electrophysiology of the cerebral cortex.