A Treatise on Aphasia and Other Speech Defects

A Treatise on Aphasia and Other Speech Defects

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...word centre is either non-existent or possessed of no functional activity, and consequently that it is not brought into relation with the left auditory word centre. They seem also to hold similar views as to the absence of a visual word centre in the right hemisphere. If these views were correct, surely such convolutional regions in the right hemisphere ought to show some distinct diminution in size and development as compared with those of the left side. But no one as yet seems to have noticed anything of the sort. There was no necropsy in Lichtheim's case of "isolated speech-deafness," and from the particulars given it seems clear that the patient was generally rather deaf, altogether apart from his word-deafness. Thus my interpretation of this case some time since, after a careful study of its details, was that there probably existed pretty complete deafness on the right side, cutting off the left auditory word centre from its proper incitations; whilst the slight sudden brain attack that is recorded to have occurred in June, 1882, may in some way have destroyed the commissural fibres connecting the left with the right auditory word centre. In this way we should have the isolation of the left auditory word centre brought about without the necessity for postulating the existence of any hypothetical and altogether unproved distribution of the auditory fibres within the brain. We should, in fact, have to do with a man partially deaf, capable of hearing noises only, but not able to perceive the meaning of spoken words--owing, on the one hand, to the complete isolation of the left auditory word centre from all sounds; and, on the other, to the inadequacy for this purpose of the right centre alone, because of the imperfect...show more

Product details

  • Paperback | 160 pages
  • 189 x 246 x 9mm | 299g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236948084
  • 9781236948083