That's because the cells that respond to vasopressin in their brains don't produce the same feelings of pleasure. In contrast, montane and meadow voles do not form a bond with a mate and only the females take part in rearing the young. Meadow montane voles non monogamous o species. So, when there is a surge of the hormone, the brain responds quickly and powerfully. Pages 9 This preview shows page 8 - 9 out of 9 pages.
Prairie voles differ from meadow and montane voles in the density of vasopressin and oxytocin receptors in the brain. So in other words, it looks like something as simple as the distribution of a few very specific cells in the brain makes the difference between a playboy and a family guy. For the Montane voles, on the other hand, the prospect of settling down just isn't so thrilling. Prairie voles are socially monogamous; males and females form long-term pair bonds, establish a nest site and rear their offspring together. Ontogeny of oxytocin and vasopressin receptor binding in the lateral septum in prairie and montane voles Zuoxin Wang), Larry J. Montane voles, a prairie vole cousin, don't share this brain circuitry or the prairie vole's monogamous lifestyle. Montane voles did not prove to have the same receptor distribution pattern at all, exhibiting a sparse number of receptors in the nucleus accumbens. One of the most provocative series of studies implicating oxytocin in social bonds involved comparison of microtine rodent (vole) species. Strikingly, if oxytocin and vasopressin are administered to montane voles, they also behave monogamously. meadow montane voles non monogamous o Species differences in oxytocin receptor.
School Neuqua Valley High School; Course Title PSY ABNORMAL P; Uploaded By dsodha5000. Not enough receptors are located there to actually stimulate the mesolimbic dopamine pathway, and as a result, partner recognition is not learned.13 . . In sections of brain tissue that were stained to reveal either vasopressin or oxytocin receptors, prairie vole brains had much higher densities of these receptors. Young Department of Psychiatry and Beha˝ioral Sciences, Emory Uni˝ersity School of Medicine, 1639 Pierce Dri˝e, Atlanta, GA 30322 USA Accepted 12 August 1997 Abstract Adult prairie .
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