Auditory and Vestibular Systems, Lateral LineAuditory projections from the IC to the SCN by way of the LG in the mole, MogeraKudo, Motoi1,3; Moriya, Madoka1; Mizuno, Noboru2Author Information 1Department of Anatomy, School of Medicine, Kanazawa University, Takaramachi 13-1, Kanazawa 920, Japan 2Department of Morphological Brain Science, Faculty of Medicine, Kyoto University, Kyoto 606, Japan 3Corresponding Author: Motoi Kudo ACKNOWLEDGEMENTS: We thank T. Konishi for his field work in acquisition of moles, and S. Nakatani and A. Matsubara for the histological assistance. Supported by a Grants-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture in Japan (09680739 and 09268211). Website publication 3 October 1997 Received 15 July 1997; accepted 6 August 1997 NeuroReport: October 20th, 1997 - Volume 8 - Issue 15 - p 3405-3409 Buy Abstract TO study morphological substrates for sensory specialization in subterranean mammals, we investigated both auditory and visual pathways in the mole. The inferior colliculus (IC), an auditory relay, projects not only to the medial geniculate, the major gateway to the auditory cortex, but also to the lateral geniculate (LG), the major gateway to visual cortex. Further evidence is that the LG does not send many fibers to the cortex in the mole. Instead, the auditory inputs to the LG are likely to be conveyed to the suprachiasmatic hypothalamic nucleus (SCN), which plays a role in photoperiodic functions in common mammals. Auditory inputs to the SCN may subserve periodic reproductive behaviors in the exclusively separated territorial domains of subterranean mammals. © Lippincott-Raven Publishers.