Tarchanoff has recently had an opportunity of studying in detail the phenomena of the cardiac and peripheral circulation on a very interesting subject, Eugène Salomé, a student of medicine in St. Petersburg. This young man possesses the remarkable power of accelerating the beats of his heart to a marked degree by a simple effort of the will; it is sufficient that he shall will that the beats be quickened to produce the phenomenon; it cannot in any way be attributed to an indirect influence, either of the respiration or from muscular movements, or to any other cause. He has always had a remarkable power over the muscular movements of his body, moving his ears at pleasure, or flexing the third phalanx of any of his fingers without apparent difficulty.
Tarchanoff's experimental researches into this curious case are recorded in the Archiv für die gesammte Physiologie, Bd. xxxv, 109 et seq