Complex sentence: After that he went back to Europe, where he got a position at the Department of Neurophysiology of Max-Planck Institute for Brain Research in Frankfurt, Germany, as well as a Research Fellow appointment at Frankfurt Institute for Advanced Studies.
Split into simpler sentences: After that he went back to Europe, where he got a position at the Department of Neurophysiology of Max-Planck Institute for Brain Research in Frankfurt, Germany. He also has a Research Fellow appointment at Frankfurt Institute for Advanced Studies.