in meta-analyses for athletic prowess, autism spectrum disorder and sexual orientation in women. Previous associations of 2D:4D with variables of interest have been shown e.g. Additionally, prenatal androgen exposure has an organizing effect on the structure and function of the brain. The 2D:4D ratio among men is usually smaller than among women. However, 2D:4D may be determined not only by prenatal testosterone, but also additional factors, such as prenatal corticosterone and genetic factors. High prenatal androgen exposure results in a shorter second digit (2D) relative to the fourth digit (4D) in the adult human hand. Prenatal sex steroids have an influence on digit development. The funders had no role in the study design, data collection, analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. Interested researchers may request data access by contacting Funding for this study was provided by intramural grants from the University Hospital of the Friedrich-Alexander-University Erlangen-Nürnberg (FAU). This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: The underlying dataset cannot be made public due to concerns regarding subject anonymity, due to the number of indirect identifies in combination with biometric data that could potentially allow for individual identification. Received: JanuAccepted: JanuPublished: February 25, 2019Ĭopyright: © 2019 Tektas et al.

PLoS ONE 14(2):Įditor: Martin Voracek, University of Vienna, AUSTRIA (2019) Digit ratio (2D:4D) and academic success as measured by achievement in the academic degree “Habilitation”. Citation: Tektas OY, Kapsner L, Lemmer M, Bouna-Pyrrou P, Lewczuk P, Lenz B, et al.

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