Neuronal Circuits in the Dorsal Cochlear Nucleus

  • Kirsten K. Osen
  • Enrico Mugnaini


The dorsal cochlear nucleus (DCN) is of interest from several points of view, not least from its large variation among species. In rodents and carnivores the nucleus is multilayered with many structural similarities with the cerebellar cortex (Lorente de Nó, 1933, 1979; Mugnaini et al., 1980a,b,c). In primates and particularly man, it is less clearly stratified (Moore and Osen, 1979; Moore, 1980). In whales it is either rudimentary (Osen and Jansen, 1965) or absent (Ogawa and Arifuko, 1948). The cytoarchitecture of the DCN has been described by several authors (Lorente de Nó, 1933, 1979; Osen, 1969; Brawer et al., 1974; Kane, 1974a,b; Moore and Osen, 1979; Moore, 1980; and others), but up to now the intrinsic neuronal circuitry of the nucleus has been poorly understood and nothing is known about its functional role in audition.


Granule Cell Inferior Colliculus Mossy Fiber Cochlear Nucleus Parallel Fiber 


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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • Kirsten K. Osen
    • 1
  • Enrico Mugnaini
    • 2
  1. 1.Anatomical InstituteUniversity of OsloOslo 1Norway
  2. 2.Department of Biobehavioral SciencesUniversity of ConnecticutStorrsUSA

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