Medial Amygdala Involvement in Discrimination of Same-Species and Closely-Related-Species Male Stimuli in Estrous Female Mesocricetus Hamsters.
Efficient discrimination between individuals of closely related species is important to maximize reproductive potential. Some studies using males as subjects have indicated that the medial amygdala (MeA) is involved in discrimination between odors of conspecific females and females from distantly re...
| Published in: | Behavioral Neuroscience Vol. 123; no. 4; pp. 758 - 764 |
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| Main Authors: | , , |
| Format: | Article |
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American Psychological Association
August 2009
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| Subjects: | |
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=506914118&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 506914118 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 07357044 BEN jtl: Behavioral Neuroscience issn: 07357044 maglogo: N pubinfo: dt: August 2009 vid: 123 iid: 4 pid: 34 pub: American Psychological Association artinfo: ui: 506914118 10.1037/a0016439 ppf: 758 ppct: 6 formats: tig: atl: Medial Amygdala Involvement in Discrimination of Same-Species and Closely-Related-Species Male Stimuli in Estrous Female Mesocricetus Hamsters. aug: au: DelBarco-Trillo, Javier Gulewicz, Kara Johnston, Robert E. su: Amygdaloid body Brain function localization Differentiation (Cognition) Smell sug: subj: Amygdaloid body Brain function localization Differentiation (Cognition) Smell keyword: Discrimination (Psychology) ab: Efficient discrimination between individuals of closely related species is important to maximize reproductive potential. Some studies using males as subjects have indicated that the medial amygdala (MeA) is involved in discrimination between odors of conspecific females and females from distantly related species. The authors investigated the involvement of the MeA in discrimination by females between odors of conspecific males and odors of males of a closely related species. The authors exposed estrous or diestrous female hamsters (Mesocricetus auratus) to saline, conspecific male odors, or heterospecific (M. brandti) male odors and quantified the expression of c-fos-related antigens in the anterior and posterior MeA. They found that estrous (but not diestrous) females investigated conspecific male odors longer than heterospecific male odors. Neural activity in both the anterior and the posterior MeA was higher in estrous than in diestrous females. In the anterior MeA, there were no significant differences in response to odors of conspecific and heterospecific males. In the posterior MeA, however, neural activity was higher when estrous females were exposed to conspecific odors than when they were exposed to heterospecific odors. No such difference was observed in diestrous females. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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