Awarded a scholarship by the Council for the Extension of Studies and Scientific Research he studied in the nervenklinik (mental hospital) of the University of Vienna (1933–34) on clinic neurology and animal testing with H. Hoff, on brain cytoarchitecture with Otto Pötzl in the laboratory of Constantin von Economo, and on brain pathology in the mental hospital of the Goethe University Frankfurt (1934–35) with Karl Kleist.
(Chair of Neurology and Psychiatry held in succession by Theodor Ziehen, Carl Wernicke and Gabriel Anton)
Karl Marx | Karl Pilkington | Karl Lagerfeld | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Heinrich von Kleist | Karl Jenkins | Karl Stefanovic | Karl Bodmer | Karl Wilhelm Friedrich Schlegel | Karl Malone | Karl Wolf | Karl Valentin | Karl Popper | Karl Malden | Karl Kesel | Karl Barth | Karl Richard Lepsius | Karl Philipp von Wrede | Karl Kautsky | Karl Johans gate | Karl-Heinz Kämmerling | Karl | Karl Weierstrass | Karl Story |
His medical education (at Erlangen, Berlin and Munich) was completed in 1928 and he worked as a physician at psychiatric hospitals in Erlangen, then a year later Gabersee and from 1936 Frankfurt am Main, to which last he was called by Karl Kleist.