A history of handedness shows how attitudes can influence scientific conclusions What causes some people to be left-handed? Is handedness a uniquely human trait? Are left-handers more likely than other people to be creative geniuses or to suffer cognitive disabilities? Historian Howard Kushner raises these and other questions in his new book, On the Other Hand.

中文翻译：

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手巧

左撇子的历史表明态度如何影响科学结论 是什么导致一些人是左撇子？惯用手是人类独有的特征吗？左撇子是否比其他人更有可能成为创造性天才或患有认知障碍？历史学家霍华德·库什纳 (Howard Kushner) 在他的新书《另一方面》中提出了这些问题和其他问题。