Trial reportEvolutionary psychology : an international journal of evolutionary approaches to psychology and behavior2013
Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus.
Trial report in Evolutionary psychology : an international journal of evolutionary approaches to psychology and behavior, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed.
- Cognitive reflection, 2D:4D and social value orientation.PloS one · 2019Trial
- Predicting closed quarters battle capability - Examining the influence of personality, attentional ability, 2D:4D-ratio and mindfulness on tactical performance.Military psychology : the official journal of the Division of Military Psychology, American Psychological Association · 2026Article
- Cognitive Performances: The Role of Digit Ratio (D2:D4) With a Protective Factor for Anxiety.Frontiers in neuroergonomics · 2022Article
- Exploring Finger Digit Ratios (2D:4D) in Surgeons, Professional Rugby Players, and Political Journalists to Form a Directional Hypothesis: Could Finger Length Predict Attention and Focus?Frontiers in behavioral neuroscience · 2022Article
- Sex, population origin, age and average digit length as predictors of digit ratio in three large world populations.Scientific reports · 2021Article
- No relationship between the digit ratios (2D:4D) and salivary testosterone change: Study on men under an acute exercise.Scientific reports · 2020Article
- Digit ratio as a risk factor for muscle dysfunction and acute exacerbation in patients with chronic obstructive pulmonary disease.The Journal of international medical research · 2020Article
- Lower Digit Ratio (2D:4D) Indicative of Excess Prenatal Androgen Is Associated With Increased Sociability and Greater Social Capital.Frontiers in behavioral neuroscience · 2019Article
- Cross-national gender variations of digit ratio (2D:4D) correlate with life expectancy, suicide rate, and other causes of death.Journal of neural transmission (Vienna, Austria : 1996) · 2018Article
- A Context Dependent Interpretation of Inconsistencies in 2D:4D Findings: The Moderating Role of Status Relevance.Frontiers in behavioral neuroscience · 2017Article
- Low digit ratio (2D:4D) in male suicide victims.Journal of neural transmission (Vienna, Austria : 1996) · 2016Article
- Why is digit ratio correlated to sports performance?Journal of exercise rehabilitation · 2016Review
- The Influence of Facial Characteristics on the Relation between Male 2D:4D and Dominance.PloS one · 2015Article
- Trained and untrained males show reliable salivary testosterone responses to a physical stimulus, but not a psychological stimulus.Journal of endocrinological investigation · 2014Article
- Second to fourth digit ratio is a predictor of sporting ability in elite Indian male kabaddi players.Asian journal of sports medicine · 2014Article
- Digit Ratio (2D:4D): A Biomarker for Prenatal Sex Steroids and Adult Sex Steroids in Challenge Situations.Frontiers in endocrinology · 2014Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The relative lengths of the 2(nd) and 4(th) digits (2D:4D) is a negative biomarker for prenatal testosterone, and low 2D:4D may be associated with aggression. However, the evidence for a 2D:4D-aggression association is mixed. Here we test the hypothesis that 2D:4D is robustly linked to aggression in "challenge" situations in which testosterone is increased. Participants were exposed to an aggressive video and a control video. Aggression was measured after each video and salivary free testosterone levels before and after each video. Compared to the control video, the aggressive video was associated with raised aggression responses and a marginally significant increase in testosterone. Left 2D:4D was negatively correlated with aggression after the aggressive video and the strength of the correlation was higher in those participants who showed the greatest increases in testosterone. Left 2D:4D was also negatively correlated to the difference between aggression scores in the aggressive and control conditions. The control video did not influence testosterone concentrations and there were no associations between 2D:4D and aggression. We conclude that 2D:4D moderates the impact of an aggressive stimulus on aggression, such that an increase in testosterone resulting from a "challenge" is associated with a negative correlation between 2D:4D and aggression.
Indexed as
Identifiers
24113579PMC10434407What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.