因为山区田鼠的大脑中没有催产素和垂体后叶加压素的受体，这些化学物质对于它们没有作用，它们继续着它们的一夜之情。

Because the montane vole does not have receptors for oxytocin or vasopressin in its brain, those chemicals have no effect, and they continue with their one-night stands.

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Ortigue的研究小组揭示了当一个人陷入爱情，他/她大脑的12个区域会连续反应，释放兴奋诱导化学物质，比如多巴胺，催产素，肾上腺素和垂体后叶素。

Results from Ortigue’s team revealed when a person falls in love, 12 areas of the brain work in tandem to release euphoria-inducing chemicals such as dopamine, oxytocin, adrenaline and vasopression.

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结论：垂体后叶素对心肌收缩力有直接抑制作用；催产素对心肌收缩力无直接影响。

Conclusion: the pituitrin has a direct inhibitory effect on the myocardial contraction force, but oxytocin has no direct effect.

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