Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . eremains intact.^ With the dog, the results become notablydifferent. From the last experiments made in the laboratoryof Vulpian, by Carville and Buret, the results of methodicablation of the various parts of the dogs brain greatly resem-ble those observed in cases of corresponding lesions of thecerebral hemisphere in man. If the experiments were made upon the monkey, it is prob-able that the resemblance would ,be still more manifest andcomplete. Here is a brief exposi of the principal resul
Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . eremains intact.^ With the dog, the results become notablydifferent. From the last experiments made in the laboratoryof Vulpian, by Carville and Buret, the results of methodicablation of the various parts of the dogs brain greatly resem-ble those observed in cases of corresponding lesions of thecerebral hemisphere in man. If the experiments were made upon the monkey, it is prob-able that the resemblance would ,be still more manifest andcomplete. Here is a brief exposi of the principal results obtained by See upon this subject Longet.—Traitfe de physiologic, , p. 431, andVulpian.—Le9ons sur la physiologie gen&rale, etc., p. 676. Vulpian, Longet. SECONDARY DEGENERATION. 119 the experiments of Carville and Buret: 1st. In the dog, ab-lation of the gray substance of the central cortex of thoseregions called motor centres produced a temporary weakness{paresis^ of the limbs upon lenticular irocletis^Section of antportimj IofintemaLcapsub! jCauclatednii4elft, of _/ ; \JInt. capsule,Chiasma of cpEc nenresi Fig. 35.—Transverse section of adog^brain, five millimetres anterior to the opti°chiasma. [Operation 0/Veyssihre.) the opposite side. 2d. Theextirpation of the caudatedganglion produced an anal-ogous but more markedparesis. Nothing can atpresent be said of the len-ticular ganglion, the ablationof which, owing to its topo-graphical position, could notbe effected; ^ 3d. If, on thecontrary, the lesion be madeupon the inferior part of theinternal capsule, it producesin both fore and hind limbsof the opposite side, notonly a simple paresis, buta well-marked motor paraly-sis which resembles the hemiplegia in man resulting from le-sions of the same parts (Fig. 35). Held suspended by theskin of the back, the animal thus operated on could still standon the sound limbs, but the affected ones hung flaccid, inert,and no longer capable o
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