A recent meta‐analysis concluded, ‘transgenerational effects are widespread, strong and persistent’. We identify biases in the literature search, data and analyses, questioning that conclusion. Re‐analyses indicate few studies actually tested transgenerational effects – making it challenging to disentangle condition‐transfer from anticipatory parental effects, and providing little insight into the underlying mechanisms.

中文翻译：

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关于适应性“跨代”效应的普遍性尚无定论。

最近的一项荟萃​​分析得出结论，“跨代影响广泛，强大且持久”。我们在文献搜索，数据和分析中发现偏见，并对这一结论提出质疑。重新分析表明，很少有研究实际测试了跨代效应，这使得将条件转移与预期的父母效应分离开来具有挑战性，并且对潜在的机制了解甚少。