Abstract
Jan Piltz (1870-1930).
Highlights
Born in Russian Poland, Jan Piltz (1870–1930) graduated in medicine from the University of Zurich in 1895
Bleuler encouraged him to investigate the diagnostic value of pupillary responses in mental illnesses; the concept was highly appreciated by Charcot and Forel but was without any practical meaning
Apart from hospital wards, Piltz organized an operating room for physiological experiments on animals [1]. There he engaged in research on the topography of cortical pupillary motor centres. He determined that irritation with very weak currents brought forth quite isolated pupillary movements which are not accompanied by movements of the eyeball and eyelids
Summary
Born in Russian Poland (at that time Poland was partitioned by Russia, Austro-Hungary and Prussia), Jan Piltz (1870–1930) graduated in medicine from the University of Zurich in 1895. Piltz observed the dilation of the pupil in response to light and visual stimuli in hospitalized patients and compared the results to the changes of the pupil which appeared while faradizing the cerebral cortex of animals [2]. This phenomenon, together with the previously described observation of Otto Haab, is known as the Haab– Piltz attention reflex.
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