HORMONE LEVELS PREDICT RELATIONSHIP QUALITY

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 目的：为了评估催乳素和催产素，通常认为是重要的亲子关系，也是重要的成年人之间的伴侣关系。 催乳素是哺乳动物成功哺乳所必需的，也调节母性行为。在某些双亲鸟类和哺乳动物中，父亲的催乳素水平升高，有一些证据表明催乳素可能对婴儿的高质量男性护理很重要。因此，催乳素通常被认为是一种“亲代”激素。催产素也参与了母亲的护理，但最近被牵连在一夫一妻制啮齿动物的配对结合。是否有其他情况下，催乳素和催产素的升高可能是重要的？这些“养育”激素可能在其他社会关系中很重要。我们已经发现催乳素和催产素水平和亲和行为（拥挤，新郎），以及在男性和女性棉顶绢毛猴（Saguinus俄狄浦斯）的性行为之间显着的正相关。与配偶进行更积极的社会互动的配偶激素水平更高。我们复制了15个交配对，我们同时记录催产素水平的从属关系的变化的数据。我们发现，在表现出的亲和行为数量上有五倍的变化，在基线催产素水平上也有五倍的变化。男性和女性的催产素水平相同，并且配对内的催产素水平高度相关，催产素水平与亲和行为呈正相关。男性催产素水平的变化最好解释的方差性活动，而女性催产素水平的变化最好解释的接触和触摸的变化。在亲密关系和激素水平上的物种内差异很大，两性都有相同水平的催产素与亲密关系相关，以及每种性别的不同行为变异来源，这些都是新颖而令人兴奋的。 这项工作依赖于WNPRC分析服务和图书馆和信息服务。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Objective: To assess whether prolactin and oxytocin, commonly thought to be important in parent-offspring relationships is also important in adult relationships between mates. Prolactin is necessary for successful nursing in mammals, and also regulates maternal behavior. In some biparental species of birds and mammals prolactin levels are elevated in fathers, and there is some evidence that prolactin may be important for quality male care of infants. Prolactin, thus, is often thought of as a "parental" hormone. Oxytocin is also involved in maternal care but has recently been implicated in pair bonding in monogamous rodents. Are there other conditions where elevated prolactin and oxytocin might be important? These "parenting" hormones might be important in other social relationships. We have found significant positive correlations between prolactin and oxytocin levels and affiliative behavior (huddle, groom), and sexual behavior in both male and female cotton-top tamarins (Saguinus oedipus). Mates that engaged in more positive social interactions with their mates had higher hormone levels. We have replicated data on variation in affiliative relationships in 15 mated pairs where we simultaneously recorded oxytocin levels. We found a five-fold variation in the amount of affiliative behavior shown, and a five-fold variation in baseline oxytocin levels. Both males and females showed equal levels of oxytocin and levels within pairs were highly correlated and oxytocin levels correlated positively with affiliative behavior. Variance in male oxytocin levels was best explained by variance in sexual activity whereas variance in female oxytocin levels was best explained by variation in contact and touching. The high within-species variation in affiliation and hormone level, the fact that both sexes have equal levels of oxytocin correlated with affiliation and the different behavioral sources of variation for each sex are each novel and exciting. This work relied on the WNPRC Assay Services and Library and Information Services.