Jean Pierre Flourens
Marie Jean Pierre Flourens (13 April 1794 – 6 December 1867), father of Gustave Flourens, was a French physiologist, the founder of experimental brain science and a pioneer in anesthesia. Through the study of ablations on animals, he was the first to prove that the mind was located in the brain, not the heart.
Lewy body
In 1910, Fritz Heinrich Lewy was studying in Berlin for his doctorate. He was the first doctor to notice that some unusual proteins in the brain make some people act and think differently, but as of that time, scientists had not been able to determine the purpose of these proteins. His discovery became known as Lewy bodies, as published in the "Handbook of Neurology" in 1912, comparing them to earlier findings by Gonzalo Rodríguez Lafora. In 1913, Lafora described another case, and acknowledged Lewy as the discoverer, naming them "cuerpos intracelulares de Lewy" (Lewy bodies). Konstantin Nikolaevich Trétiakoff found them in 1919 in the substantia nigra of PD brains, called them "corps de Lewy" and is credited with the eponym. Eliasz Engelhardt argued in 2017 that Lafora should be credited with the eponym, because he named them six years before Trétiakoff. In 1923, Lewy published his findings in a book, "The Study on Muscle Tone and Movement. Including Systematic Investigations on the Clinic, Physiology, Pathology, and Pathogenesis of Paralysis agitans".