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Auditory Cortex

  • John F. Brugge
  • Richard A. Reale
Part of the Cerebral Cortex book series (CECO, volume 4)

Abstract

Auditory cortex refers, in the classical sense, to the temporal region of cerebral cortex that receives a major ascending afferent input from the medial geniculate body of the thalamus and contains neurons responsive to acoustic stimulation. Anatomical, physiological, and behavioral studies, some dating back to the last century, have shown repeatedly that auditory cortex, so defined, is a complex structure made up of not one field, but several fields that can be distinguished from one another on the bases of cytoarchitecture, connectivity patterns, functional maps, and the coding properties of single neurons. In a more general sense, the definition of auditory cortex may be expanded to include those areas referred to as “polysensory,” “nonspecific,” or “associational,” areas whose major ascending inputs are derived mainly from sources outside of those making up the main auditory lemniscal pathway (Graybiel, 1973, 1974; Irvine and Phillips, 1982; see Pandya and Yeterian, this volume). This so-called “diffuse” or “lemniscal adjunct” system is characterized by poor frequency selectivity, little tonotopic organization, and considerable convergent input from other sensory systems.

Keywords

Auditory Cortex Inferior Colliculus Primary Auditory Cortex Medial Geniculate Body Ventral Posterior 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1985

Authors and Affiliations

  • John F. Brugge
    • 1
  • Richard A. Reale
    • 1
  1. 1.Department of Neurophysiology and Waisman Center on Mental Retardation and Human DevelopmentUniversity of WisconsinMadisonUSA

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