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In a previous study (Cant and Benson [<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"#bib15\">2006<\/jats:ext-link>] J. Comp. Neurol. 495:511\u2010528), we made injections of biotinylated dextran amine into the CNIC of the gerbil and demonstrated that it can be divided into two parts. One part (<jats:italic>zone 1<\/jats:italic>) receives almost all of its ascending input from the cochlear nuclei, the nuclei of the lateral lemniscus, and the main nuclei of the superior olivary complex; the other part (<jats:italic>zone 2<\/jats:italic>) receives inputs from the cochlear nuclei and nuclei of the lateral lemniscus but few or no inputs from the main olivary nuclei. Here we show that these two parts of the CNIC project differentially to the MGv. Axons labeled anterogradely by injections in zone 1 project throughout the rostral two\u2010thirds of the MGv, whereas axons from zone 2 project to the caudal third of the MGv. Throughout much of their extent, the terminal fields do not appear to overlap, although both parts of the CNIC project to medial and dorsal parts of the MGv, and there may be overlap in the most ventral part as well. The results indicate that two parallel pathways arising in the CNIC remain largely separate in the medial geniculate nucleus of the gerbil. It seems most likely that the neurons in the two terminal zones in the MGv perform different functions in audition. J. Comp. Neurol. 503:432\u2013453, 2007. \u00a9 2007 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/cne.21391","type":"journal-article","created":{"date-parts":[[2007,5,14]],"date-time":"2007-05-14T18:47:32Z","timestamp":1179168452000},"page":"432-453","source":"Crossref","is-referenced-by-count":55,"title":["Multiple topographically organized projections connect the central nucleus of the inferior colliculus to the ventral division of the medial geniculate nucleus in the gerbil, <i>Meriones unguiculatus<\/i>"],"prefix":"10.1002","volume":"503","author":[{"given":"Nell B.","family":"Cant","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christina G.","family":"Benson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,5,14]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/29.6.7252134"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.901940311"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.901940312"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.20542"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/bhj164"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0306-4522(00)00340-7"},{"key":"e_1_2_6_8_1","first-page":"28","volume-title":"The thalamus and basal telencephalon of the cat. 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