The architecture of human kin detection
The architecture of human kin detection
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DOI：
10.1038/nature05510
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发表时间：
2007-02-15
期刊：
影响因子：
64.8
通讯作者：
Cosmides, Leda
中科院分区：
文献类型：
--
作者：
Lieberman, Debra;Tooby, John;Cosmides, Leda
在许多物种中已经发现了评估遗传相关性的进化机制，但它们在人类中的存在一直存在争议。在这里，我们报告三个收敛线的证据，来自兄弟姐妹，支持的假设，亲属检测机制存在于人类。这些方法的运作方式是，为每个熟悉的个体计算一个单一的调节变量（亲属关系指数），这个变量对应于自我和他人之间遗传相关性的成对估计。系统使用的线索，通过定量匹配个人暴露的潜在线索的相关性的变化，在三个输出相关的系统的进化功能：兄弟姐妹利他主义，厌恶亲自参与兄弟姐妹乱伦，和道德上的反对第三方兄弟姐妹乱伦。正如预测的那样，亲属检测系统使用两种不同的，祖先有效的线索来计算相关性：熟悉的其他人的围产期与个人的生物学母亲的关联，以及兄弟姐妹共存的持续时间。
Evolved mechanisms for assessing genetic relatedness have been found in many species, but their existence in humans has been a matter of controversy. Here we report three converging lines of evidence, drawn from siblings, that support the hypothesis that kin detection mechanisms exist in humans. These operate by computing, for each familiar individual, a unitary regulatory variable ( the kinship index) that corresponds to a pairwise estimate of genetic relatedness between self and other. The cues that the system uses were identified by quantitatively matching individual exposure to potential cues of relatedness to variation in three outputs relevant to the system's evolved functions: sibling altruism, aversion to personally engaging in sibling incest, and moral opposition to third party sibling incest. As predicted, the kin detection system uses two distinct, ancestrally valid cues to compute relatedness: the familiar other's perinatal association with the individual's biological mother, and duration of sibling coresidence.