"Robert Sommer (December 19, 1864 – February 2, 1937) was a German psychiatrist and genealogist born in Grottkau. He is remembered for his work in experimental psychology.
He studied medicine and philosophy in Freiburg im Breisgau and Leipzig, relocating in 1885 to Berlin, where he composed a work on the philosophy of John Locke in relation to René Descartes. In 1887, he received his doctorate of philosophy, afterwards working as an assistant in the laboratory of Wilhelm Wundt (1832-1920) at Leipzig. From 1889, he was an assistant at a psychiatric hospital in Rybnik, earning his habilitation at Würzburg in 1892." - (en.wikipedia.org 19.10.2019)
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