User:Phineurosia8/sandbox

Oxytocin is a neurohormone implicated in emotional and social behaviors in many mammals. Most notably, in humans Oxytocin has been verified through scientific experimentation, as the primary neurohormone responsible for love, bonding with others, and other social phenomena. In humans, studies have found, sex stimulates the release of oxytocin and vasopressin."monogamous marmosets have higher levels of vasopressin bound in the reward centres of their brains than do non-monogamous rhesus macaques." --By Helen Fisher/ title of article: "Why we Love: The Nature and Chemistry of Romantic

Prairie Voles and Montane Voles--The Role of Oxytocin and Vasopressin.Prairie Voles have a monogamous mating style. After a male and female Prairie vole sexually reproduce with one another, they form a lifelong bond. Montane voles, on the other hand, exhibit a polygamous mating style. A male and female Montane Vole fornicates with one another, and each goes off without forming any attachment to the other. Studies on the brains of these two species of Voles have found that it is two neurohormones and their respective receptors that are responsible for these differences in mating strategies. Male Prairie Voles emit Vasopressin after copulating a female Prairie Vole. An attachment to the female ensues. Female Prairie Voles will release Oxytocin after reproducing with a male Prairie Vole. An attachment to this male Prairie Vole ensues. In Montane Voles-- both males and females--such a high quantity of Oxytocin and Vasopressin does not exist in their brains when they mate. Even when injected with Oxytocin or Vasopressin the mating style of the Montane Vole does not change; contrast this to the Prairie Vole who, even without mating, may form a lifelong attachment to another Prairie Vole of the opposite sex, if Oxytocin or Vasopressin is injected into him/her. The reason for this is that Prairie Voles have more Oxytocin and Vasopressin receptors than do Montane Voles, and are thus far more receptive to the two neurohormones. it is not quantity of the hormone that determine social attachment, mating-bonds and sexual-lust, but rather the number of receptors receptive to that quantity.

Future reserach on Animal Sexual behavior