Human anatomy, including structure and development and practical considerations . by the posterior part of the rij^ht third frontal conxolution, l)ut in the left-lianded it is probably the chief centre. In the first left temporal conxolution is the aiuiiiorv ccnlrc for speech, a lesicjiiof which leads to a loss of memory for word-sounds, though the hearings may beundisturbed. The centre for memory of pri)ited -cords is probably in the left an_i,^ular i^yrus ;and a lesion tliere probably causes a loss of the ability to read or tf) understandwritten lanouatie, though ordinary sij^ht is undisturb
Human anatomy, including structure and development and practical considerations . by the posterior part of the rij^ht third frontal conxolution, l)ut in the left-lianded it is probably the chief centre. In the first left temporal conxolution is the aiuiiiorv ccnlrc for speech, a lesicjiiof which leads to a loss of memory for word-sounds, though the hearings may beundisturbed. The centre for memory of pri)ited -cords is probably in the left an_i,^ular i^yrus ;and a lesion tliere probably causes a loss of the ability to read or tf) understandwritten lanouatie, though ordinary sij^ht is undisturbed. The existence of a motorwriting;- centre is doubtful (Oppenheim). If it exists, it is probably located in theposterior portion of the left second frontal convolution. We have no definite knowledge of the location of centres for smell and for smell is thought to lie in the uncinate gyrus. The centre for taste has beensupposed to be in the anterior portion of the gyrus fornicatus, but it is not decided,although it is probably near the centre for smell. Fig. Diagram illustrating probable relations of physiological areas and centres of mesial aspect of right cerebral hemisphere. {Mills.) The auditory ce7itre, as indicated, is in the upper temporal convolution. It isvery likely that the centre of each side is connected with both auditory nerves, sothat a paralysis of one side by a unilateral lesion of one side may be compensated forby the centre of the opposite side. It is probable that no part of the cerebral cortex is absolutely without function,although the functions of some areas are very little known. Unilateral disease of theanterior portion of the frontal lobe may be extensive without notable symptoms of anykind. The atrophy is often most marked here in general paralysis of the insane,and in other forms of dementia. It is generally agreed that the seat of the higherpsychical functions is located in the prefrontal lobes, the left side being perhapsmore ac
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Keywords: ., bookauthormc, bookcentury1900, bookdecade1910, booksubjectanatomy
