Hermann von Helmholtz

(31.08.1821, Potsdam - 8.09.1894) - German physicist, physiologist and psychologist. For the first time has done a measurement of the velocity of conduction of excitation along the nerve fibers. In the psychology of perception developed the concept of 'unconscious inferences', . according to which the current perception is determined already available to the individual's 'usual ways', . by allowing for the constancy of the visible world, . and which play an important role muscular sensations and movement,
. Described on the basis of the concept of the mechanisms of space perception. Developed a 'triple' theory of color vision T. Young. Developed a 'resonance' theory of hearing. The staff and pupils were in the Helmholtz. Wundt and IM. Sechenov.