Marc Dax: Difference between revisions
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'''Marc Dax''' ([[1771]]-[[1837]]) was a [[French]] [[neurologist]], sometimes credited for discovering the link between neurological damage to the [[left hemisphere]], right-sided [[hemiplegia]], and a loss of the ability to produce [[speech]] ([[aphasia]]). He submitted his discovery, based on the observations of three patients in [[Montpellier]], to the French Academy of Sciences and two previous notes were published in [[1836]], 25 years before [[Paul Broca]]'s more famous description. His papers were titled ''Observations tending to prove the constant coincidence of disturbances of speech with a lesion of the left hemisphere of the brain'', and ''Lesions of the left half of the encephalon coincident with the forgetting of signs of thinking''. He died one year later and thus his discovery remained obscure. |
'''Marc Dax''' ([[1771]]-[[1837]]) was a [[French]] [[neurologist]], sometimes credited for discovering the link between neurological damage to the [[left hemisphere]], right-sided [[hemiplegia]], and a loss of the ability to produce [[speech]] ([[aphasia]]). He submitted his discovery, based on the observations of three patients in [[Montpellier]], to the French Academy of Sciences and two previous notes were published in [[1836]], 25 years before [[Paul Broca]]'s more famous description. His papers were titled ''Observations tending to prove the constant coincidence of disturbances of speech with a lesion of the left hemisphere of the brain'', and ''Lesions of the left half of the encephalon coincident with the forgetting of signs of thinking''. He died one year later and thus his discovery remained obscure. |
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In [[1863]], [ |
In [[1863]], [[Gustave Dax]], the son of Marc Dax, published his father's work on the subject, two years after Paul Broca's publication on the same phenomenon. Today, the discovery of the link between the left hemisphere and speech is typically credited to Paul Broca. |
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==Bibliography== |
==Bibliography== |
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Revision as of 13:54, 15 November 2005
Marc Dax (1771-1837) was a French neurologist, sometimes credited for discovering the link between neurological damage to the left hemisphere, right-sided hemiplegia, and a loss of the ability to produce speech (aphasia). He submitted his discovery, based on the observations of three patients in Montpellier, to the French Academy of Sciences and two previous notes were published in 1836, 25 years before Paul Broca's more famous description. His papers were titled Observations tending to prove the constant coincidence of disturbances of speech with a lesion of the left hemisphere of the brain, and Lesions of the left half of the encephalon coincident with the forgetting of signs of thinking. He died one year later and thus his discovery remained obscure.
In 1863, Gustave Dax, the son of Marc Dax, published his father's work on the subject, two years after Paul Broca's publication on the same phenomenon. Today, the discovery of the link between the left hemisphere and speech is typically credited to Paul Broca.
Bibliography
- "M. Dax soumet au jugement de l'Académie un Mémoire intitulé: `Observations tendant à prouver la coïncidence constante des dérangements de la parole avec une lésion de l'hémisphère gauche du cerveau'." Compt.rend.hebdom.séan.l'Acad Scien, 1863, 56, 536.
- Dax, M. Lésions de la moitié gauche de l'encéphale coïncident avec l'oubli des signes de la pensée (lu à Montpellier en 1836). Bulletin hebdomadaire de médecine et de chirurgie, 2me série, 1865, 2, 259-62.
- Joynt, R.J.; Benton, A.L. The memoir of Marc Dax on aphasia. Neurology. 1964 Sep;14:851-4.
- Critchley, M. La controverse de Dax et Broca. Revue neurologique, 1964, 110, 553-57 (English translation in Critchley, The Divine Banquet of the Brain and Other Essays, New York: Raven Press, 1979, pp. 72-82)
External links
- Lokhorst, GJC. The First Theory about Hemispheric Specialization. Fresh Light on an Old Codex. (in PDF).