The Cortical Localization of the Auditory Area
The Cortical Localization of the Auditory Area
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听觉区的皮质定位
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通讯作者：
A. Campbell
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作者：
A. Campbell
and it affords me great pleasure to now place before the Otological Society a brief outline of the results of my researches in so far as the auditory centre is concerned. These results have been obtained ;; from an examination in strict serial section of several human and % three anthropoid brains, and the amount of labour involved in the research may be gauged from the fact that the examination of one ' brain occupies at least six months. *" To illustrate the method of procedure, I may say that if a « section taken from the middle of the temporal lobe be stained for nerve fibres or nerve cells and examined, three types of cortical structure may be observed—one special type, characterized by an :: abundance of large medullated nerve fibres and large nerve cells, coats the Sylvian side of the superior temporal gyrus; a second q special type covers the crown and lower side of the same gyrus; :j and a third type, which we may call a general one, is found over .'• V the remaining convolutions. Now, on analyzing the distribution of these types of structure in a successive series of sections, it becomes possible to define with absolute exactitude two definite areas. The extent of these areas is indicated in the diagrams and casts shown, and I need only say here that one covers the transverse temporal gyri of Heschl, and is almost concealed within the Sylvian fissure, while the other occupies the posterior three-fifths of the superior temporal convolution. It is impossible for me to discuss fully the functions of these areas, but I would mention that the conclusions which I have arrived at, after a careful consideration of most of the anatomical, embryological, experimental, and clinico-pathological data which have been adduced on this subject, are that the first area represents the exact limits of the field which we are to regard as the arrival
