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Olfactory recognition of infants in laboratory mice: Role of noradrenergic mechanisms

Calamandrei, Gemma, Wilkinson, Lawrence Stephen ORCID: and Keverne, Eric B. 1992. Olfactory recognition of infants in laboratory mice: Role of noradrenergic mechanisms. Physiology & Behavior 52 (5) , pp. 901-907. 10.1016/0031-9384(92)90369-D

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Noradrenaline depletion of the olfactory bulbs induces cannibalism at parturition in primiparous mice, without producing anosmia or impairment of maternal behaviour. Similar lesions made in multiparous experienced females do not result in cannibalism. The present studies investigated 1) whether a 30-min exposure to pups or to distal cues from pups given to virgin females before noradrenaline depletion of the olfactory bulbs overcame the impairment in recognition at first parturition, and 2) whether noradrenaline-depleted females allowed to care for their pups for the 24 h following parturition showed a failure in recognition on a second parturition. Experiment 1 showed that exposure to distal cues from pups enabled the females to successfully recognize pups at parturition in comparison to naive females. However, neither the exposure to pup cues nor the fully interactive experience with pups overcame the disruptive effect on recognition at birth of the noradrenaline depletion. In Experiment 2, we found that olfactory recognition was impaired in noradrenaline-depleted females on second parturition, in spite of the mothering experience with their own pups.

Item Type: Article
Date Type: Publication
Status: Published
Schools: MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Neuroscience and Mental Health Research Institute (NMHRI)
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: Maternal behaviour; Olfactory learning; Noradrenaline; Mice
Publisher: Elsevier
ISSN: 0031-9384
Last Modified: 31 Oct 2022 10:36

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