Sex-specific processing of social cues in the medial amygdala

Animal–animal recognition within, and across species, is essential for predator avoidance and social interactions. Despite its essential role in orchestrating responses to animal cues, basic principles of information processing by the vomeronasal system are still unknown. The medial amygdala (MeA) o...

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Main Authors: Joseph F Bergan, Yoram Ben-Shaul, Catherine Dulac
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2014-06-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/02743
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author Joseph F Bergan
Yoram Ben-Shaul
Catherine Dulac
author_facet Joseph F Bergan
Yoram Ben-Shaul
Catherine Dulac
author_sort Joseph F Bergan
collection DOAJ
description Animal–animal recognition within, and across species, is essential for predator avoidance and social interactions. Despite its essential role in orchestrating responses to animal cues, basic principles of information processing by the vomeronasal system are still unknown. The medial amygdala (MeA) occupies a central position in the vomeronasal pathway, upstream of hypothalamic centers dedicated to defensive and social responses. We have characterized sensory responses in the mouse MeA and uncovered emergent properties that shed new light onto the transformation of vomeronasal information into sex- and species-specific responses. In particular, we show that the MeA displays a degree of stimulus selectivity and a striking sexually dimorphic sensory representation that are not observed in the upstream relay of the accessory olfactory bulb (AOB). Furthermore, our results demonstrate that the development of sexually dimorphic circuits in the MeA requires steroid signaling near the time of puberty to organize the functional representation of sensory stimuli.
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spelling doaj.art-58905073d1ea4b1bbb5faf16556061592022-12-22T02:05:29ZengeLife Sciences Publications LtdeLife2050-084X2014-06-01310.7554/eLife.02743Sex-specific processing of social cues in the medial amygdalaJoseph F Bergan0Yoram Ben-Shaul1Catherine Dulac2Molecular and Cellular Biology, Howard Hughes Medical Institute, Harvard University, Cambridge, United StatesSchool of Medicine, Department of Medical Neurobiology, The Hebrew University of Jerusalem, Jerusalem, IsraelMolecular and Cellular Biology, Howard Hughes Medical Institute, Harvard University, Cambridge, United StatesAnimal–animal recognition within, and across species, is essential for predator avoidance and social interactions. Despite its essential role in orchestrating responses to animal cues, basic principles of information processing by the vomeronasal system are still unknown. The medial amygdala (MeA) occupies a central position in the vomeronasal pathway, upstream of hypothalamic centers dedicated to defensive and social responses. We have characterized sensory responses in the mouse MeA and uncovered emergent properties that shed new light onto the transformation of vomeronasal information into sex- and species-specific responses. In particular, we show that the MeA displays a degree of stimulus selectivity and a striking sexually dimorphic sensory representation that are not observed in the upstream relay of the accessory olfactory bulb (AOB). Furthermore, our results demonstrate that the development of sexually dimorphic circuits in the MeA requires steroid signaling near the time of puberty to organize the functional representation of sensory stimuli.https://elifesciences.org/articles/02743medial amygdalasensory representationsexual dimorphismvomeronasal systempheromonebehavior
spellingShingle Joseph F Bergan
Yoram Ben-Shaul
Catherine Dulac
Sex-specific processing of social cues in the medial amygdala
eLife
medial amygdala
sensory representation
sexual dimorphism
vomeronasal system
pheromone
behavior
title Sex-specific processing of social cues in the medial amygdala
title_full Sex-specific processing of social cues in the medial amygdala
title_fullStr Sex-specific processing of social cues in the medial amygdala
title_full_unstemmed Sex-specific processing of social cues in the medial amygdala
title_short Sex-specific processing of social cues in the medial amygdala
title_sort sex specific processing of social cues in the medial amygdala
topic medial amygdala
sensory representation
sexual dimorphism
vomeronasal system
pheromone
behavior
url https://elifesciences.org/articles/02743
work_keys_str_mv AT josephfbergan sexspecificprocessingofsocialcuesinthemedialamygdala
AT yorambenshaul sexspecificprocessingofsocialcuesinthemedialamygdala
AT catherinedulac sexspecificprocessingofsocialcuesinthemedialamygdala