 In 1948 the Max Planck Society was founded to succeed the Kaiser Wilhelm Society, and the institute became the Max Planck Institute for Brain Research.Hallervorden retired as director in 1955, Spatz in 1959.In 1962, a new building was erected in Frankfurt-Niederrad to house the Departments of Neurobiology (Hassler, Director 1959-1982) and Neuropathology (Krücke, Director 1956-1979), as well as the Research Groups "Evolution of the Primate Brain" (Stephan) and "Neurochemistry" (Werner).