Projections from the posterolateral olfactory amygdala to the ventral striatum: neural basis for reinforcing properties of chemical stimuli
Ver/ Abrir
Impacto
Scholar |
Otros documentos de la autoría: Úbeda-Bañón, Isabel; Novejarque, Amparo; Mohedano-Moriano, Alicia; Pro-Sistiaga, Palma; De la Rosa-Prieto, Carlos; Insausti, Ricardo; Martinez-Garcia, Fernando; Lanuza, Enrique; Martínez-Marcos, Alino
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/36080
comunitat-uji-handle3:10234/36082
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Projections from the posterolateral olfactory amygdala to the ventral striatum: neural basis for reinforcing properties of chemical stimuliAutoría
Fecha de publicación
2007Editor
BioMed CentralISSN
1471-2202Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.biomedcentral.com/1471-2202/8/103Versión
info:eu-repo/semantics/publishedVersionResumen
Background: Vertebrates sense chemical stimuli through the olfactory receptor neurons whose axons project to the main olfactory bulb. The main projections of the olfactory bulb are directed to the olfactory cortex and ... [+]
Background: Vertebrates sense chemical stimuli through the olfactory receptor neurons whose axons project to the main olfactory bulb. The main projections of the olfactory bulb are directed to the olfactory cortex and olfactory amygdala (the anterior and posterolateral cortical amygdalae). The posterolateral cortical amygdaloid nucleus mainly projects to other amygdaloid nuclei; other seemingly minor outputs are directed to the ventral striatum, in particular to the olfactory tubercle and the islands of Calleja.
Results: Although the olfactory projections have been previously described in the literature, injection of dextran-amines into the rat main olfactory bulb was performed with the aim of delimiting the olfactory tubercle and posterolateral cortical amygdaloid nucleus in our own material. Injection of dextran-amines into the posterolateral cortical amygdaloid nucleus of rats resulted in anterograde labeling in the ventral striatum, in particular in the core of the nucleus accumbens, and in the medial olfactory tubercle including some islands of Calleja and the cell bridges across the ventral pallidum. Injections of Fluoro-Gold into the ventral striatum were performed to allow retrograde confirmation of these projections.
Conclusion: The present results extend previous descriptions of the posterolateral cortical amygdaloid nucleus efferent projections, which are mainly directed to the core of the nucleus accumbens and the medial olfactory tubercle. Our data indicate that the projection to the core of the nucleus accumbens arises from layer III; the projection to the olfactory tubercle arises from layer II and is much more robust than previously thought. This latter projection is directed to the medial olfactory tubercle including the corresponding islands of Calleja, an area recently described as critical node for the neural circuit of addiction to some stimulant drugs of abuse. [-]
Publicado en
BMC Neuroscience, 8, 103Derechos de acceso
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- MED_Articles [671]
El ítem tiene asociados los siguientes ficheros de licencia:
Excepto si se señala otra cosa, la licencia del ítem se describe como: © 2007 Ubeda-Bañon et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.