Brain as an organ of mind / by H. Charlton Bastian.

  • Henry Charlton Bastian
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: Brain as an organ of mind / by H. Charlton Bastian. Source: Wellcome Collection.

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    and ability to Speak, would remain intact. This is a perfectly possible condition, and that, too, from a small lesion in one or other of various situations. The lesion might implicate the fibres which conduct the stimulus from the Visual Word-Centre to the Kinsesthetic Word- Centre, or it might involve this latter Centre itself, or, lastly, it might destroy, in some parts of their course, the fibres passing from the Kinaesthetic Word-Centre to the related motor centres in the Corpus Striatum. In either of these ways it is conceivable that a person might lose his ability to Write, alone and without other defect. Should the individual, however, be paralysed on the right side of the body any such special defect would be hidden by the more general loss of power occasioned by paralysis of the right arm. But if such a person were to attempt to learn to Write with the left hand, there is no reason why he might not succeed, provided the left Visual Word-Centre were itself uninjured and in free communication through callosal fibres with its fellow of the opposite Hemisphere. A person affected with right Hemiplegia would, however, probably be incapable of re-acquiring the art of Writing, with the left hand, if the left Visual Word-Centre itself were damaged. But with the existence of such a lesion the patient would also be unable to comprehend written or printed language. This seems to have been the case, for instance, with Trousseau’s patient—M. X—, who, notwithstanding all his intelligence, could not, after three years, write with his left hand (see p. 652). The Agraphic defect is almost never met with alone. It is most frequently associated with some mental defects, or with defects of Articulate Speech. Again, the same term. Agraphia, may be appro- priately enough allowed to include ‘ incoordinate ’ as well
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