Pérusse D, Neale M C, Heath A C, Eaves L J
Department of Anthropology, Université de Montréal, Canada.
Behav Genet. 1994 Jul;24(4):327-35. doi: 10.1007/BF01067533.
A large sample of adult twins (1117 pairs), who were concordant for having had children were asked to report on their child-rearing practices. A 14-item version of the Parental Bonding Instrument (PBI) was used to assess rearing practices of parent twins. The two factors of Care and Overprotection, commonly found in other studies, were recovered from this analysis of the PBI's parent form. Model-fitting analyses indicate that human parental behavior is under significant genetic influence. Findings further suggest that this influence is sex limited, with a higher heritability in mothers than in fathers, and that it may result partly from the expression of dominant genes. For both PBI factors and both parents, the best-fitting models invariably assumed sex-limited genetic effects and unique environmental influences only. Broad heritability ranged from 19% (father overprotection) to 39% (mother care). These results are interpreted in the broader perspective of gene-culture theory.
一大组育有子女的成年双胞胎样本（1117对）被要求报告他们的育儿方式。使用了一份14项版的父母教养方式问卷（PBI）来评估双胞胎父母的养育方式。在对PBI父母版的分析中，发现了其他研究中常见的关爱和过度保护这两个因素。模型拟合分析表明，人类的父母行为受到显著的遗传影响。研究结果进一步表明，这种影响存在性别限制，母亲的遗传力高于父亲，并且这可能部分是由显性基因的表达导致的。对于PBI的两个因素以及父母双方而言，最佳拟合模型总是仅假设存在性别限制的遗传效应和独特的环境影响。广义遗传力范围从19%（父亲过度保护）到39%（母亲关爱）。这些结果将从基因 - 文化理论的更广泛视角进行解读。
