Abstract：
:Male and female C57BL/6 J mice were tested on the predator odor response task, where they needed to cross through a chamber of scented bedding to reach a sucrose reward. Following the behavioral testing, mouse brains were immunohistochemically labeled for expression of the immediate early gene c-fos. In the presence of the novel odorant methyl valerate (MV), both males and females exhibited increased exploration behaviors and delayed rewards compared to control bedding. However, in the presence of the predator odor phenylethylamine (PEA), males exhibited increased exploration that strongly resembled their behavior in MV (a non-predator odor) while females behaved very similarly to the clean bedding controls, quickly traversing the chamber to achieve the reward. Expression of c-fos exhibited significant sex by odor condition interactions overall across brain regions and in the anterior piriform cortex, cingulate cortex, and dorsomedial hypothalamus specifically. In all three regions we observed the general pattern that PEA exposure evoked elevated c-fos expression in females but suppressed c-fos expression in males. Taken together these data suggest that males and females may adopt different behavioral strategies in the presence of predator threat.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Francesconi JA,Macaroy C,Sawant S,Hamrick H,Wahab S,Klein I,McGann JPdoi
10.1016/j.bbr.2020.112467subject
Has Abstractpub_date
2020-03-16 00:00:00pages
112467eissn
0166-4328issn
1872-7549pii
S0166-4328(19)31431-7journal_volume
382pub_type
杂志文章abstract：:The exposure to stress has been associated with increased depressive and anxiety symptoms, yet not all individuals respond negatively to the experience of stress. Recent rodent social defeat models demonstrate similar individual differences in response to social stress. In particular, mice subjected to chronic social ...
journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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