Afferent and efferent innervation patterns of the superior olivary nucleus of the leopard frog
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Right ear advantage for vocal communication in frogs results from both structural asymmetry and attention modulation
2014, Behavioural Brain ResearchCitation 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.
Acetylcholinesterase staining in the auditory brainstem nuclei of the leopard frog, Rana pipiens
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The research was supported by National Science Foundation Grant BNS 82-04160 and a grant from the Research Board of the University of Illinois.
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I wish to thank Jim Hall for discussing results of this study and other unpublished data and for commenting on earlier versions of this paper.