CHEMICAL, SENSESProjections of olfactory bulbs to the olfactory and vomeronasal corticesPro-Sistiaga, Palma; Mohedano-Moriano, Alicia; Ubeda-Bañon, Isabel; Rosa-Prieto, Carlos de la; Saiz-Sanchez, Daniel; Martinez-Marcos, AlinoAuthor Information Human Neuroanatomy Laboratory, Department of Health Sciences, School of Medicine, Regional Center for Biomedical Research, University of Castilla-La Mancha, Albacete, Spain Correspondence to Dr Alino Martinez-Marcos, Dpto. CC. Médicas, Fac. Medicina, University Castilla-La Mancha, Avda. Almansa 14, 02006 Albacete, Spain Tel: +967599200 x2962; fax: +967599340; e-mail: Alino.Martinez@uclm.es Received 3 July 2008; accepted 17 July 2008 NeuroReport: October 8th, 2008 - Volume 19 - Issue 15 - p 1541-1544 doi: 10.1097/WNR.0b013e32831126ee Buy Metrics Abstract Projections from the olfactory bulbs have been traditionally described as ‘nontopographically organized’. Olfactory and vomeronasal projections have been reported to reach nonoverlapping cortical areas. Four receptor expression zones have been described in the olfactory epithelium, maintained in the main olfactory bulb, but none in the olfactory cortex. Recent data have demonstrated convergence in the basal telencephalon of olfactory and vomeronasal projections. Injections of methanesulfonate hydroxystilbamidine (FluoroGold) in the chemosensory cortex were done to map retrograde labeling in the bulbs. Topography was not observed in the four zones of the main olfactory bulb. Areas of the rostral telencephalon were shown to receive simultaneous inputs from the main and accessory olfactory bulbs. © 2008 Lippincott Williams & Wilkins, Inc.