Prolactin Levels and Maternal Behavior Induced by Ultrasonic Vocalizations of the Rat Pup.

Haruo Hashimoto · Toru R. Saito · Sen-ichi FURUDATE · Kazuaki W. TAKAHASHI

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Neuroendocrine regulation and behavior Animal Vocal Communication and Behavior Infant Health and Development

Abstract

The relationship among ultrasonic vocalization (USV), prolactin and maternal behavior was investigated in lactating rat mothers and their pups. The lactating mother had a cannula inserted into the external jugular vein, and was exposed to USVs emitted from a pup immediately. Changes of prolactin and maternal behavior were determined. Prolactin increased dramatically during exposure to USVs, when maternal search, retrieving and nest building behavior appeared significantly. These results suggested that the relationship among USV, prolactin and maternal behavior was included in communication between lactating mother and pup.

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References

1985Prolactin Stimulation of Maternal Behavior in Female Rats 1997Central Lactogenic Regulation of Maternal Behavior in Rats: Steroid Dependence, Hormone Specificity, and Behavioral Potencies of Rat Prolactin and Rat Placental Lactogen I 1992Role of pups' ultrasonic calls in a particular maternal behavior in Wistar rat: pups' anogenital licking 1989Estradiol and parental experience, but not prolactin are necessary for ultrasound recognition and pup-retrieving in the mouse 1979Ultrasonic cries from infant rats stimulate prolactin release in lactating mothers

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