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Article

Examination marks of male university students positively correlate with finger length ratios (2D:4D).

Biological psychology - 1 Feb 2006

Romano Maria, Leoni Barbara, Saino Nicola

Abstract excerpt

Intersexual and intrasexual variation in second to fourth digit length (2D:4D) in humans may result from differential exposure to fetal testosterone. 2D:4D predicts several physiological, psychological and performance traits in adulthood. These relationships may reflect the 'pleiotropic' effects of testosterone on development of digits and diverse organ systems, which are expressed in adulthood. We hypothesized...

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PMID: 15978716
DOI: 10.1016/j.biopsycho.2005.03.006

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Examination marks of male university students positively correlate with finger length ratios (2D:4D).PMID 15978716Read ↗

2D:4D Ratio and its Implications in MedicineSemantic proximity Read ↗

Digit Ratio (2D:4D) in Twins: Heritability Estimates and Evidence for a Masculinized Trait Expression in Women from opposite-Sex PairsSemantic proximity Read ↗

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Relationship of digit ratio with sexual steroid hormone receptor related genes - single nucleotide polymorphisms in a sample from Northern China.Semantic proximity Read ↗

Heritability of the Second to Fourth Digit Ratio (2d:4d): A Twin StudySemantic proximity Read ↗

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

Genetic and environmental influences on 2D:4D finger length ratios: a study of monozygotic and dizygotic male and female twins.Semantic proximity Read ↗

Repeatability and interobserver error of digit ratio (2D:4D) measurements made by expertsSemantic proximity Read ↗

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2nd to 4th digit ratio (2D:4D) and number of sex partners: Evidence for effects of prenatal testosterone in menSemantic proximity Read ↗

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