Abstract：
:Social competence - the ability of animals to dynamically adjust their social behavior dependent on the current social context - is fundamental to the successful establishment and maintenance of social relationships in group-living species. The social opportunity paradigm, where animals rapidly ascend a social hierarchy following the removal of more dominant individuals, is a well-established approach for studying the neural and neuroendocrine mechanisms underlying socially competent behavior. In the current study, we demonstrate that this paradigm can be successfully adapted for studying socially competent behavior in laboratory mice. Replicating our previous reports, we show that male laboratory mice housed in a semi-natural environment form stable linear social hierarchies. Novel to the current study, we find that subdominant male mice immediately respond to the removal of the alpha male from a hierarchy by initiating a dramatic increase in aggressive behavior towards more subordinate individuals. Consequently, subdominants assume the role of the alpha male. Analysis of brain gene expression in individuals 1h following social ascent indicates elevated gonadotropin-releasing hormone (GnRH) mRNA levels in the medial preoptic area (mPOA) of the hypothalamus compared to individuals that do not experience a social opportunity. Moreover, hormonal analyses indicate that subdominant individuals have increased circulating plasma testosterone levels compared to subordinate individuals. Our findings demonstrate that male mice are able to dynamically and rapidly adjust both behavior and neuroendocrine function in response to changes in social context. Further, we establish the social opportunity paradigm as an ethologically relevant approach for studying social competence and behavioral plasticity in mammals.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Williamson CM,Romeo RD,Curley JPdoi
10.1016/j.yhbeh.2016.11.001subject
Has Abstractpub_date
2017-01-01 00:00:00pages
80-88eissn
0018-506Xissn
1095-6867pii
S0018-506X(16)30324-5journal_volume
87pub_type
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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doi：10.1016/j.yhbeh.2012.05.009
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
pub_type： 杂志文章
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
pub_type： 杂志文章
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journal_title：Hormones and behavior
pub_type： 杂志文章
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