Der „galvanische Krampf“ bei aufsteigender Durchströmung von Fröschen

Effects of direct currents on the electrical activity of the spinal cord

“…Evidence exists that the phenomenon is of central origin (Kollensperger & Scheminzky, 1938), and the interpretation has been suggested (Scheminzky, 1940) Baumgarten (1949) has shown that when current flows between two electrodes placed at the two opposite ends of the vertebral column of frogs, opposite motor effects can be obtained not only by reversing the polarity of the electrodes but also simply by displacing the trunk of the sciatic nerve. From these results he infers that Scheminzky's effect is conditioned by the electrotonic polarization of peripheral nerves.…”

“…Evidence exists that the phenomenon is of central origin (Kollensperger & Scheminzky, 1938), and the interpretation has been suggested (Scheminzky, 1940) that it is due to electrotonus of some 'functionally polarized' nervous elements situated in the spinal cord. Bremer (1941) Winterstein (1948) found that when the cathode was placed on the spinal cord of frogs, increased motor activity resulted, no matter where the anode was located upon the animal's body, and therefore he rejected the assumption of a functional polarization of spinal elements.…”