Digit ratio (2D:4D) and month of birth: A link to the solstitial-melatonin-testosterone effect

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• 作者：Anita Szwed^a ; Magdalena Kosinska^a ; John T. Manning^b ; ^{j.manning@swansea.ac.uk}
• 关键词：Digit ratio ; Month-of-birth ; Solstitial-melatonin ; Testosterone
• 刊名：Early Human Development
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：104
• 期：Complete
• 页码：23-26
• 全文大小：325 K
• 卷排序：104

文摘

Low 2D:4D (high prenatal testosterone) is found in Winter Births. The effect is greatest for births in the first part of the 20th Century. Day length towards the end of the 1st Trimester predicts 2D:4D Our results support the solstititial-melatonin-testosterone hypothesis