being unable to distinguish between physical and psychological causes of symptoms instead of using Kraepelin's approach of delineation of syndromes and disorders. Eponyms Wernicke's aphasia: The eponymous term for receptive or sensory aphasia. It is the inability to understand speech, or to produce meaningful speech, caused by lesions to the posterior superior temporal gyrus. Wernicke encephalopathy: An acute neurological dysfunction caused by a thiamine deficiency. It is characterized by the triad of ophthalmoparesis, ataxia and mental confusion. When combined with Korsakoff psychosis, a subacute dementia syndrome, it is then called Wernicke–Korsakoff syndrome. Wernicke's pupillary reaction: The absence of direct reaction to light in the blind part of the retina. First described by ophthalmologist Hermann Wilbrand in 1881. Wernicke's centre Wernicke's cramp Wernicke's dementia Wernicke's disease Wernicke-Korsakoff disease Wernicke-Mann hemiplegia Publications In 1897, with Theodor Ziehen (1862-1950), he founded the journal Monatsschrift für Psychiatrie und Neurologie. Conference proceedings from Breslau were published in the Allgemeine Zeitschrift fur Psychiatrie und Psychische-Gerichtliche Medizin. Principal written works by Wernicke include: Der aphasische Symptomencomplex. Eine psychologische Studie auf anatomischer Basis [The aphasic symptom complex: a psychological study from an anatomical basis]; Breslau, M. Crohn und Weigert, 1874. Das Urwindungssystem des menschlichen Gehirns [The Primordial Gyral-System of the Human Brain], 1876. Lehrbuch der Gehirnkrankheiten : für Aerzte und Studirende [Textbook of brain diseases: for doctors and students], 1881. Über hemiopische Pupillenreaktion [On hemianopsic pupillary response], in Fortschritte der Medicin, 1883, 1: 49–53. Grundriss der Psychiatrie in klinischen Vorlesungen [Foundation of psychiatry in clinical lectures], 1894. Atlas des Gehirns; Schnitte durch das menschliche Gehirn in photographischen Originalen [Atlas of the brain; sections of the human brain from photographic originals], 1897. Krankenvorstellungen aus der psychiatrischen klinik in Breslau [Ideas on illness from the psychiatric clinic in Breslau], 1899. Anthologies Notes References 1845 births 1905 deaths History of neuroscience German neuroscientists German pathologists People from Tarnowskie Góry People from the Province of Silesia University of Breslau alumni Physicians of the Charité