Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus

Liam P Kilduff, Renato N. Hopp, C.J. Cook, Blair T Crewther, John T. Manning

    Research output: Contribution to journalArticle

    31 Citations (Scopus)
    3 Downloads (Pure)

    Abstract

    The relative lengths of the 2nd and 4th 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
    Original languageEnglish
    Pages (from-to)953-964
    Number of pages12
    JournalEvolutionary Psychology
    Volume11
    Issue number5
    DOIs
    Publication statusPublished - 2013

    Fingerprint

    Aggression
    Testosterone
    Biomarkers

    Cite this

    Kilduff, Liam P ; Hopp, Renato N. ; Cook, C.J. ; Crewther, Blair T ; Manning, John T. / Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus. In: Evolutionary Psychology. 2013 ; Vol. 11, No. 5. pp. 953-964.
    @article{0e32bb359d474d9ba6fd653193344c66,
    title = "Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus",
    abstract = "The relative lengths of the 2nd and 4th 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",
    keywords = "2D:4D, Aggressive video, Prenatal testosterone, Testosterone",
    author = "Kilduff, {Liam P} and Hopp, {Renato N.} and C.J. Cook and Crewther, {Blair T} and Manning, {John T.}",
    note = "Cited By :12 Export Date: 25 May 2017",
    year = "2013",
    doi = "10.1177/147470491301100502",
    language = "English",
    volume = "11",
    pages = "953--964",
    journal = "Evolutionary Psychology",
    issn = "1474-7049",
    publisher = "Human Nature Review",
    number = "5",

    }

    Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus. / Kilduff, Liam P; Hopp, Renato N.; Cook, C.J.; Crewther, Blair T; Manning, John T.

    In: Evolutionary Psychology, Vol. 11, No. 5, 2013, p. 953-964.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus

    AU - Kilduff, Liam P

    AU - Hopp, Renato N.

    AU - Cook, C.J.

    AU - Crewther, Blair T

    AU - Manning, John T.

    N1 - Cited By :12 Export Date: 25 May 2017

    PY - 2013

    Y1 - 2013

    N2 - The relative lengths of the 2nd and 4th 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

    AB - The relative lengths of the 2nd and 4th 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

    KW - 2D:4D

    KW - Aggressive video

    KW - Prenatal testosterone

    KW - Testosterone

    U2 - 10.1177/147470491301100502

    DO - 10.1177/147470491301100502

    M3 - Article

    VL - 11

    SP - 953

    EP - 964

    JO - Evolutionary Psychology

    JF - Evolutionary Psychology

    SN - 1474-7049

    IS - 5

    ER -