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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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The effect of oxytocin on the social behavior of the Brandt’s voles in the medial amygdala
Author of the article:ZHANG Nan,YAN Li-xin,GAO Jie,SUN Xiu-ping,SONG Ming-jing*
Author's Workplace:Key Laboratory of Human Diseases Comparative Medicine,Ministry of Health,Institute of Laboratory Animal Science,Chinese Academy of Medical Sciences & Comparative Medicine Centre,Peking Union Medical College
Key Words:Brandt’s voles;Oxytocin;Medial amygdala;Social memory;Prosocial
Abstract:Objective To explore the influence of oxytocin in the medial amygdala on the social behavior of the Brandt’s voles. Methods We inhibited the oxytocin receptor in medial amygdala and verifiedits influences on the social behavior of Brandt’s voles using social recognition experiment and neutral arena encounter experiment.Results The control voles took far more time to explored the strangers than the familiars (P < 0.001).However,the voles injected with oxytocin receptor inhibitor in medial amygdala took the similar time to investigated the strangers and the familiars(P > 0.05). The voles injected with oxytocin receptor inhibitor in medial amygdala showed no more attack time and incubation time of attack than the control voles (P > 0.05). Conclusion Oxytocin in the medial amygdala can influence the social recognition and memory ability of the Brandt’s voles, but can not affect its attack behavior. Therefore, we conclude that the expression of oxytocin in the medial amygdala affect Brandt’s voles’ social behavior through impairing the ability of social memory, rather than changing their ability of prosocial.
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