. Diseases of the nervous system : for the general practitioner and student. the new view held by Marie and his followers. Maries View on Aphasia.—Basing himself on clinicopathologicalrecords of a large number of cases (Semaine Medicale, 1906), Marie rejectsthe following features of the old classical conception of aphasia, viz. thespecificity of Brocas center, the distinction between motor and sensoryaphasias, the existence of pure (sub-cortical) forms of aphasia and finallythe existence of individual speech centers. He argues that there is onlyone aphasia, there is only one speech-center loca
. Diseases of the nervous system : for the general practitioner and student. the new view held by Marie and his followers. Maries View on Aphasia.—Basing himself on clinicopathologicalrecords of a large number of cases (Semaine Medicale, 1906), Marie rejectsthe following features of the old classical conception of aphasia, viz. thespecificity of Brocas center, the distinction between motor and sensoryaphasias, the existence of pure (sub-cortical) forms of aphasia and finallythe existence of individual speech centers. He argues that there is onlyone aphasia, there is only one speech-center localized in the left temporo-parietal lobe which is at the same time the specialized intellectual centerbut not the center for sensory images. Word-deafness and word-blindness APHASIA 137 are but defects of the special intelligence of speech. Intellectual deficitis the main characteristic feature. Brocas aphasia is a combination ofWernickes aphasia and anarthria. The latter is caused by a lesion ofa quadrilateral area surrounding the lenticular nucleus (lenticular zone) ;. Fig. 71.—Softening in Left Hemisphere Showing Complete Destruction of the Lenticular Zone. {Original.) its limits are: anteriorly a vertical plane level with the anterior sulcus ofthe insula, posteriorly a similar plane with the posterior sulcus of theinsula, internally the lateral ventricle, externally the surface of theinsula. Posteriorly the lenticular zone is in connection with Wernickeszone (supra-marginal gyrus; angular gyrus, posterior portions of the T 138 APHASIA and T)- A lesion of Wernickes zone produces aphasia, a lesion of thequadrilateral area produces anarthria. The F3 which lies in front of thequadrilateral area has nothing to do with aphasia (Fig. 71). Since Maries original contribution various observers reported ana-tomical cases corroborating his views. On the other hand, Dejerine andothers brought forward facts which are at variance with the new con-ception of aphasia. The subject is stil
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnervous, bookyear1913
