Localizing Putative Excitatory Endings in the Cochlear Nucleus by Quantitative Immunocytochemistry

  • José M. Juiz
  • Maria E. Rubio
  • Robert H. Helfert
  • Richard A. Altschuler
Part of the NATO ASI series book series (NSSA, volume 239)

Abstract

A major characteristic of CN neurons is their rich and complex patterns of synaptic inputs. The input carried by the auditory nerve (AN) is relayed to CN neurons through very secure excitatory synapses (reviewed by Wenthold and Martin,’ 84 and Caspary,’ 86, see also chapter by Morest in this volume). In addition, an intricate array of intrinsic and extrinsic (descending) connections from a variety of sources (see chapter by Saint-Marie et al. in this volume), make inhibitory as well as excitatory synapses on CN neurons. This pattern of synaptic inputs is specific for each cell type and determines in part the different processing abilities of CN neurons. Therefore, analyzing the synaptology of CN neurons is essential for an adequate understanding of the roles of CN in auditory processing. Several questions relevant to understand the functional synaptology of the CN are addressed in several chapters of this volume. Here we report on some of our recent findings regarding the chemical anatomy of putative excitatory endings in the CN.

Keywords

Albumin Glycine Paraformaldehyde Glutaraldehyde Purpura 

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Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • José M. Juiz
    • 1
  • Maria E. Rubio
    • 1
  • Robert H. Helfert
    • 2
  • Richard A. Altschuler
    • 3
  1. 1.Dpt. of Histology and Institute of NeuroscienceUniversity of AlicanteAlicanteSpain
  2. 2.Dpts. of Surgery and PharmacologySouthern Illinois UniversitySpringfieldUSA
  3. 3.Kresge Hearing Research InstituteUniversity of MichiganAnn ArborUSA

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