芬兰阿尔托大学(Aalto University)情绪神经回路研究员,劳瑞·努曼玛(Lauri Nummenmaa)表示:“这个发现对于人类而言相当重要,因为我们与我们的朋友,亲属等都有着深刻,持久的关系。但究竟是什么样的生理系统在维持这种联系,使得这种关系得以长久保持的呢?”
Studies in animals have shown that opioids can play a crucial role in pairing up. Prairie voles are monogamous in the wild, but when given a drug that blocks opioid in their brains, they seek out other partners. If opioids are blocked in monkeys, they groom others less and neglect their babies.
动物实验中发现,阿片类物质将在两性关系中起到至关重要的作用。野生的草原田鼠属于单配型生物,但当实验组给草原田鼠服用药物,脑中阿片类物质分泌被抑制以后,它们开始寻找其他的伴侣。倘若猴子脑内的阿片类物质被抑制分泌,它们梳理其他同类毛发的次数减少,也不再看护自己的小孩。
To see whether opioids were important in human bonding, the researchers invited nine couples into the lab. The men stripped off to their underpants and lay under a blanket in a PET scanner. The first scan was taken while the men were alone. For the second, their partners touched them gently all over, but avoided anywhere likely to arouse them sexually.
为了研究阿片类物质对于人类关系是否具有重要的作用,研究人员邀请了九对伴侣参加实验。所有男性要求脱去衣物,只保留内衣,然后让他们平躺在正子扫描仪下,盖上毛毯。在他们处于单人环境下时,进行第一次扫描。接着邀请他们的伴侣轻柔的抚摸其全身,但尽量避免触碰他们的性兴奋区,然后对所有男性进行第二次扫描。
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