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In support of 2D:4D: More data exploring its conflicting results on handedness, sexual orientation and sex differences

22 Aug 2023

Abstract excerpt

In the last few years, several studies have questioned the value of the second-to-fourth digit ratio (2D:4D) as a measure of exposure to sex hormones before birth. Controversy has also extended to the 2D:4D association with individual features previously related to this exposure such as handedness and sexual orientation. Given that it has been argued that sex differences in 2D:4D could be a consequence of...

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PMID: 37607180
DOI: 10.1371/journal.pone.0280514

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