Sensation seeking (SS) is a personality trait described as the tendency to seek novel, varied, complex and intense sensations and experiences, and the willingness to take risks for the sake of such experiences (Roberti, J. W., 2004). This trait is generally higher in man than in women, and it might be mediated by prenatal gonadal hormones (Manning, J. T., 2011), particularly testosterone (Voracek, 2011).
Gonadal hormones are known to mediate a number of caracteristics, both physical and psychological; one of those is thought to be the ratio between the second and the fourth digit (2D:4D). 2D:4D, typically lower in males, is thought to be a sexually dimorphic trait resulting from different levels of gonadal hormones in utero (Manning, J. T., Fink, B., Neave, N., & Szwed, A., 2006; Austin, E. J., Manning, J. T., McInroy, K., & Mathews, E., 2002).…