多伦多大学Aleksandr Kogan小组最新研究表明荷尔蒙“后叶加压素”感受体的编码基因会影响人的行为。研究结果发表在《美国科学院院报》上。
当一种单个基因发生变化时，你的性格会受到影响。更重要的是，即使你不说一句话，别人也能看出来这种变化。
多伦多大学的Aleksandr Kogan及其同事想要证明这些不同的荷尔蒙“后叶加压素”感受体编码基因是否影响行为， 因为催产素表达高的人更具社交性。
Kogan的研究小组让116名志愿者观看23个无声视频，这些视频时长20s。视频内容为人听到同伴个人讲述痛苦经历的反应。志愿者被要求评估视频里人的性格和可靠度如何。
结果，GG 等位基因组的人被认为比那些GA、AA组的性格更好。有什么区别吗？GG等位基因组的讲述者更多是使用明显的体态语言，比如微笑和点头。Kogan认为这些手势影响着志愿者的评估。
需要更进一步的研究证明不同的遗传变异对催产素水平的影响。（生物探索译）
相关英文论文摘要：
Thin-slicing study of the oxytocin receptor (OXTR) gene and the evaluation and expression of the prosocial disposition
Individuals who are homozygous for the G allele of the rs53576 SNP of the oxytocin receptor (OXTR) gene tend to be more prosocial than carriers of the A allele. However, little is known about how these differences manifest behaviorally and whether they are readily detectable by outside observers, both critical questions in theoretical accounts of prosociality. In the present study, we used thin-slicing methodology to test the hypotheses that (i) individual differences in rs53576 genotype predict how prosocial observers judge target individuals to be on the basis of brief observations of behavior, and (ii) that variation in targets’ nonverbal displays of affiliative cues would account for these judgment differences. In line with predictions, we found that individuals homozygous for the G allele were judged to be more prosocial than carriers of the A allele. These differences were completely accounted for by variations in the expression of affiliative cues. Thus, individual differences in rs53576 are associated with behavioral manifestations of prosociality, which ultimately guide the judgments others make about the individual.
