Inputs to the torus semicircularis in the electric fish Eigenmannia virescens |
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Authors: | Professor Dr. H. Scheich S. O. E. Ebbesson |
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Affiliation: | (1) Institut für Zoologie, Technische Hochschule Darmstadt, Schnittspahnstraße 3, 6100 Darmstadt, Federal Republic of Germany;(2) Ponce School of Medicine, Ponce, Puerto Rico, USA |
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Abstract: | Summary The posterior lateral-line lobe, contrary to present belief, projects bilaterally to the torus semicircularis, although the contralateral projection is considerably more extensive. The torus also receives bilateral inputs from the medial octavo-lateralis nuclear complex, the reticular formation, a sublemniscal nucleus, and the nucleus prae-eminentialis. Unilateral inputs to the torus were found originating from the ipsilateral mesencephalic tectum and the contralateral lobus caudalis of the cerebellum. Extensive commissural systems between the right and left torus are also described for the first time. |
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Keywords: | Torus semicircularis Horseradish peroxidase Electroreception Auditory system Visual system Electric fish |
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