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Lack of spatial segregation in the representation of pheromones and kairomones in the mouse medial amygdala

Carvalho, Vinicius M A ; Nakahara, Thiago S ; Cardozo, Leonardo M ; Souza, Mateus A A ; Camargo, Antonio P ; Trintinalia, Guilherme Z ; Ferraz, Eliana ; Papes, Fabio

Frontiers in neuroscience, 2015-08, Vol.9, p.283-283 [Periódico revisado por pares]

Switzerland: Frontiers Research Foundation

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  • Título:
    Lack of spatial segregation in the representation of pheromones and kairomones in the mouse medial amygdala
  • Autor: Carvalho, Vinicius M A ; Nakahara, Thiago S ; Cardozo, Leonardo M ; Souza, Mateus A A ; Camargo, Antonio P ; Trintinalia, Guilherme Z ; Ferraz, Eliana ; Papes, Fabio
  • Assuntos: Activity patterns ; Amygdala ; Animal behavior ; Biology ; c-Fos protein ; higher-order representation ; Information processing ; Kairomones ; Nervous system ; Neural coding ; Neurons ; Odor ; Olfaction ; Peptides ; Pheromones ; Physiology ; Sense organs ; Sensory evaluation ; Sex discrimination ; Smell ; Vomeronasal Organ
  • É parte de: Frontiers in neuroscience, 2015-08, Vol.9, p.283-283
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Edited by: Markus Fendt, Otto-von-Guericke University Magdeburg, Germany
    Reviewed by: Qi Yuan, Memorial University, Canada; Mario Engelmann, Otto-von-Guericke-Universität Magdeburg, Germany
    This article was submitted to Systems Biology, a section of the journal Frontiers in Neuroscience
    These authors have contributed equally to this work.
    Present Address: Leonardo M. Cardozo, Neurosciences Graduate Program, University of California, San Diego, 9500 Gilman Drive 0634, La Jolla, CA 92093-0634, USA
  • Descrição: The nervous system is organized to detect, internally represent and process sensory information to generate appropriate behaviors. Despite the crucial importance of odors that elicit instinctive behaviors, such as pheromones and kairomones, their neural representation remains little characterized in the mammalian brain. Here we used expression of the immediate early gene product c-Fos as a marker of neuronal activity to find that a wide range of pheromones and kairomones produces activation in the medial nucleus of the amygdala, a brain area anatomically connected with the olfactory sensory organs. We see that activity in this nucleus depends on vomeronasal organ input, and that distinct vomeronasal stimuli activate a dispersed ensemble of cells, without any apparent spatial segregation. This activity pattern does not reflect the chemical category of the stimuli, their valence or the induced behaviors. These findings will help build a complete understanding of how odor information is processed in the brain to generate instinctive behaviors.
  • Editor: Switzerland: Frontiers Research Foundation
  • Idioma: Inglês
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