Handbook of insanity for practitioners and students . approximately with the areas of distribution of the anterior, pos-terior, and middle cerebral arteries. The fact that the centres for ci»J£C^-. Fig. 4. speech and writing (which are developed in one hemisphere alone)are not contained in our centro-motor region, proves the merelyschematic value of the division ; nevertheless these two important CORTICAL CENTRES. 11 centres are in close proximity to this region. For purposes ofteaching we require a sharp separation of the centres, which inreality often pass into another. The speech-region, in
Handbook of insanity for practitioners and students . approximately with the areas of distribution of the anterior, pos-terior, and middle cerebral arteries. The fact that the centres for ci»J£C^-. Fig. 4. speech and writing (which are developed in one hemisphere alone)are not contained in our centro-motor region, proves the merelyschematic value of the division ; nevertheless these two important CORTICAL CENTRES. 11 centres are in close proximity to this region. For purposes ofteaching we require a sharp separation of the centres, which inreality often pass into another. The speech-region, in particular,must be regarded as a composite cortical region. Only the cornersof the speech-region are formed by its centres, while the corti-cal fields of the optic and auditory nerves, as well as of various
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