2D:4D finger ratio positively correlates with total cerebral cortex in males

Gergely Darnai, Eniko Plózer, Gábor Perlaki, Gergely Orsi, Szilvia Anett Nagy, Réka Horváth, Attila Schwarcz, Norbert Kovács, Anna Altbäcker, József Janszky, Zsófia Clemens

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4 Citations (Scopus)


Although there is evidence that the ratio of 2nd-4th digit length (2D:4D) correlates with prenatal testosterone level, psychological and health traits only two studies have assessed the relationship with brain morphological features. Here we investigated the association between the 2D:4D ratio and several brain subvolumes. Seventy-five subjects between the ages of 18 and 30 were included in the study. The length of the 2nd and 4th digits were measured with an electronic vernier caliper while MRI measurements were performed on a Siemens Magnetom Trio Tim (3. T) system. Freesurfer software suite was used for volumetric segmentation. Finger ratio significantly positively correlated with total cerebral cortex, total cerebellar white matter and total cerebellar cortex in males but not in females. Our results indicate that prenatal testosterone, as estimated by the 2D:4D ratio has an effect on adult brain morphology in males.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalNeuroscience Letters
Publication statusPublished - Feb 26 2016


  • 2D:4D
  • Brain volumetry
  • Finger ratio
  • Total cerebellar cortex
  • Total cerebellar white matter
  • Total cerebral cortex

ASJC Scopus subject areas

  • Neuroscience(all)

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    Darnai, G., Plózer, E., Perlaki, G., Orsi, G., Nagy, S. A., Horváth, R., Schwarcz, A., Kovács, N., Altbäcker, A., Janszky, J., & Clemens, Z. (2016). 2D:4D finger ratio positively correlates with total cerebral cortex in males. Neuroscience Letters, 615, 33-36. https://doi.org/10.1016/j.neulet.2015.12.056