Hugo Karl Liepmann (April 9, 1863 – May 6, 1925) was a German neurologist and psychiatrist born in Berlin, into a Jewish family.
His interests later turned to medicine, and after completion of studies, worked as an assistant to Carl Wernicke in the psychiatric clinic at Breslau.
In 1906 he became head physician at Dalldorf (Berlin-Wittenau), followed by an assignment as director of the Städtische Irrenanstalt zu Lichtenberg (Herzberge) in 1914.
[citation needed] Apraxia is described as the inability to coordinate voluntary muscular movements that is symptomatic of some central nervous system disorders and injuries and not due to muscle weakness.
[4] Liepmann believed that damage in the parietal lobe prevented activation of learned sequences of actions that are necessary to produce desired results on command.