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- W1584403957 abstract "The hormones and experiences of pregnancy, parturition and lactation have been shown to dramatically remodel the female rat's hippocampus, potentially enhancing behaviours critical for meeting the increased demands of motherhood. Previous work in our laboratory has also suggested that pup exposure, apart from pregnancy and lactation, constitutes an important influence on ancillary maternal behaviour (e.g. foraging behaviour). In the present study, we press the parental model further by examining the effect of pup exposure on the hippocampus of males from a biparental mouse species, the California mice (Peromyscus californicus). Males were either Fathers (i.e. first-time fathers housed with a female from mating until 7 days after parturition), pup-exposed virgins (PEV; i.e. sexually naïve males briefly exposed to pups daily for 7 days) or Virgins (i.e. never exposed to females or pups). A dry-land maze (DLM), as used for assessing spatial learning, was employed to determine the foraging abilities of the males. The results indicated that, on the most challenging day of testing (i.e. acquisition day), California mouse Fathers demonstrated superior memory for the task compared to PEVs and Virgins. In addition to the behavioural data, significantly more fos-immunoreactivity was observed in the CA1, CA3 and dentate gyrus regions of the hippocampi of Fathers than PEVs or Virgins in response to the probe trial. Additionally, a trend for altered performance on the DLM was observed in the PEVs on the last day of testing, which was accompanied by the highest levels of nestin-immunoreactivity, an indicant of neuroplasticity, of the three groups. In summary, these data suggest that, in accordance with previous observations of maternal rats, the paternal brain is similarly influenced by parental experience, as demonstrated by accompanying modifications to relevant neurobiological and behavioural responses." @default.
- W1584403957 created "2016-06-24" @default.
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- W1584403957 date "2011-10-18" @default.
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- W1584403957 title "Fatherhood Alters Behavioural and Neural Responsiveness in a Spatial Task" @default.
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- W1584403957 doi "https://doi.org/10.1111/j.1365-2826.2011.02225.x" @default.
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