Facing off with the phalangeal phenomenon and editorial policies: A commentary on Swift-Gallant, Johnson, Di Rita and Breedlove (2020)

@article{McCormick2020FacingOW,
  title={Facing off with the phalangeal phenomenon and editorial policies: A commentary on Swift-Gallant, Johnson, Di Rita and Breedlove (2020)},
  author={Cheryl M. McCormick and Justin M. Carr{\'e}},
  journal={Hormones and Behavior},
  year={2020},
  volume={120}
}
Handgrip strength and 2D : 4D in women: homogeneous samples challenge the (apparent) gender paradox
TLDR
The finding that HGS and 2D : 4D are clearly associated in women implies similar organizing effects of prenatal androgens as in men, pointing to a more parsimonious developmental mechanism and a new look into its proximate and ultimate causes.
Depression, neuroticism and 2D:4D ratio: evidence from a large, representative sample
TLDR
The findings suggest that the 2D:4D ratio is not a relevant predictor of depression, while there was mixed evidence in the case of neuroticism.
Digit Ratio (2D:4D) and Physical Performance in Female Olympic Athletes
TLDR
The 2D:4D ratio was significantly lower in the athletes compared with controls although serum testosterone levels were comparable between groups and within normal reference values, and it was suggested that the 2D:[4D]3D ratio could reflect androgen metabolism and may be of importance for sporting success in female athletes.
Digit ratios and their asymmetries as risk factors of developmental instability and hospitalization for COVID-19
TLDR
It is concluded that digit ratio patterns differ between patients and controls and this was most evident in ratios that included 5D, likely to be a marker for postnatal stressors resulting in developmental perturbations and for potential severity of COVID-19.
The relationship between digit ratio (2D:4D) and muscular fitness: A systematic review and meta‐analysis
TLDR
Digit ratio, a marker of prenatal testosterone exposure, is a weak negative correlate of sports/athletic/fitness performance and there has never been a comprehensive study that has synthesized studies examining relationships between 2D:4D and muscular fitness.
The relationship between finger length ratio, masculinity, and sexual orientation in women: A correlational study
Homosexual women are, on average, more masculine in their appearance and behavior than heterosexual women. We hypothesized that their masculinity was influenced by exposure to elevated levels of
Can Digit Ratio (2D:4D) Be Indicative of Predispositions to Autoimmune Thyroid Diseases in Women - Hashimoto Thyroiditis and Graves’ Disease?
TLDR
Higher right and left 2D:4D in women with Hashimoto thyroiditis suggests that prenatal exposure to high levels of estrogens relative to testosterone may play a role in the development of this disease.
Overexpression of Androgen Receptors Masculinizes 2D:4D Digit Ratios in Mice.
TLDR
A role for non-neural AR in the development of 2D:4D is supported and it is suggested that increased sensitivity to androgens via increased AR is sufficient to increase the masculinization of digit ratios.
Parental income inequality and children's digit ratio (2D:4D): a 'Trivers-Willard' effect on prenatal androgenization?
TLDR
The findings suggest a Trivers-Willard effect, such that high-income women may prenatally masculinize their sons at the expense of the fitness of their daughters, which could explain associations between low income, high 2D:4D (low prenatal testosterone) and some major causes of mortality such as cardiovascular disease.
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References

SHOWING 1-10 OF 21 REFERENCES
Do sex differences in CEOAEs and 2D:4D ratios reflect androgen exposure? A study in women with complete androgen insensitivity syndrome
TLDR
The findings in women with complete androgen insensitivity syndrome (CAIS) suggest that additional, non-androgenic, factors mediate male-typical sexual differentiation of digit ratios and click-evoked otoacoustic emissions.
Evidence from Meta-Analyses of the Facial Width-to-Height Ratio as an Evolved Cue of Threat
TLDR
Findings provide some support for the hypothesis that the FWHR is part of an evolved cueing system of intra-sexual threat and dominance in men.
Biometric Evidence that Sexual Selection Has Shaped the Hominin Face
TLDR
It is shown that at puberty, the height of the upper face, between the lip and the brow, develops differently in males and females, and that these differences are not explicable in terms of sex differences in body size.
Masculinized Finger Length Patterns in Human Males and Females with Congenital Adrenal Hyperplasia
TLDR
Results are consistent with the idea that prenatal androgen exposure reduces the 2D:4D and plays a role in the establishment of the sex difference in human finger length patterns, and finger lengths may offer a retrospective marker of perinatal androgens exposure in humans.
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