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Some cortical association systems related to auditory functions
Author(s) -
Hurst Edith MacLennan
Publication year - 1959
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901120111
Subject(s) - citation , association (psychology) , cognitive science , library science , computer science , psychology , philosophy , epistemology
Many observers have considered the peripheral and central portions of the auditory pathways. In the present paper the central connections only, chiefly those of cortical association regions, will be considered. In reference to cortical areas, the nomenclature of Brodmann (’09) is used in all cases. A part of the interest in the auditory system has arisen from the clinical pictures presented in cases of human auditory deficiency. Those resulting from certain cortical lesions which involve auditory association cortex have been particularly striking because, although the patient is not deaf as the result of such a lesion, he is unable to understand spoken language o r the meaning of sounds. The various studies of the auditory projection and association cortices have led to the conclusions that the human auditory projection area is located in areas 41 and 42 and that in this region sounds are recognized as being of a certain pitch. However, area 22 which surrounds the projection area is thought to be the region where sounds become meaningful. This part of the cortex, therefore, is referred to as an “auditory association area.” Studies of human auditory aphasia have been con-