Elsevier

Brain Research

Volume 364, Issue 1, 29 January 1986, Pages 167-171
Brain Research

Afferent and efferent innervation patterns of the superior olivary nucleus of the leopard frog

https://doi.org/10.1016/0006-8993(86)90998-4Get rights and content

Abstract

An HRP study of the frog's superior olivary nucleus (SON) revealed that it (1) receives reciprocal tonotopic projections from dorsal medullary nuclei and principal nuclei of the torus semicircularis (TS) bilaterally; (2) receives bilateral projections from caudalis nuclei and brainstem reticular nuclei, and unilateral projections from the ipsilateral ventral tegmental nuclei and the contralateral SON; (3) is reciprocally connected with the ipsilateral laminar and magnocellular nuclei of the TS, dorsal tegmental nuclei and the posterior thalamic nucleus; (4) projects directly to the ipsilateral central thalamic nucleus.

Reference (20)

There are more references available in the full text version of this article.

Cited by (19)

  • Right ear advantage for vocal communication in frogs results from both structural asymmetry and attention modulation

    2014, Behavioural Brain Research
    Citation Excerpt :

    Previous EEG research indicates that the left hemisphere in Babina is specialized for processing species-specific vocalizations [10]. It has been demonstrated anatomically and physiologically in anurans that the right dorsal medullary nucleus (DMN) transfers acoustic information from the right auditory nerve largely to the contralateral superior olivary nucleus (SON) which, in turn, projects to the ipsilateral auditory midbrain, i.e. the torus semicircularis which possesses a well-developed cortical-like layered and uniformly organized structure [29–32]. Thus, a left-hemisphere/right-ear processing advantage for communication sounds in anurans may be mediated by brainstem pathways providing a preferred channel derived from the right ear to the left midbrain and telencephalon.

View all citing articles on Scopus

The research was supported by National Science Foundation Grant BNS 82-04160 and a grant from the Research Board of the University of Illinois.

*

I wish to thank Jim Hall for discussing results of this study and other unpublished data and for commenting on earlier versions of this paper.

View full text