Subcollicular Projections to the Auditory Thalamus and Collateral Projections to the Inferior Colliculus
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Frontiers - Publisher Connector ORIGINAL RESEARCH ARTICLE published: 18 July 2014 NEUROANATOMY doi: 10.3389/fnana.2014.00070 Subcollicular projections to the auditory thalamus and collateral projections to the inferior colliculus Brett R. Schofield 1*, Jeffrey G. Mellott 1 and Susan D. Motts 2 1 Auditory Neuroscience Group, Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, USA 2 Department of Physical Therapy, Arkansas State University, Jonesboro, AR, USA Edited by: Experiments in several species have identified direct projections to the medial geniculate Paul J. May, University of nucleus (MG) from cells in subcollicular auditory nuclei. Moreover, many cochlear nucleus Mississippi Medical Center, USA cells that project to the MG send collateral projections to the inferior colliculus (IC) Reviewed by: (Schofield et al., 2014). We conducted three experiments to characterize projections to Ranjan Batra, University of Mississippi Medical Center, USA the MG from the superior olivary and the lateral lemniscal regions in guinea pigs. For Edward Lee Bartlett, Purdue experiment 1, we made large injections of retrograde tracer into the MG. Labeled cells University, USA were most numerous in the superior paraolivary nucleus, ventral nucleus of the trapezoid *Correspondence: body, lateral superior olivary nucleus, ventral nucleus of the lateral lemniscus, ventrolateral Brett R. Schofield, Department of tegmental nucleus, paralemniscal region and sagulum. Additional sources include other Anatomy and Neurobiology, Northeast Ohio Medical University, periolivary nuclei and the medial superior olivary nucleus. The projections are bilateral 4209 State Route 44, PO Box 95, with an ipsilateral dominance (66%).
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