Hostility-Aggressiveness, Sensation Seeking, and Sex Hormones in Men: Re-Exploring Their Relationship

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Abstract
To evaluate the relationship between sex hormones and aggressiveness, hostility and sensation seeking we studied 30 healthy males. Using a standardised technique of radioimmunoassay, we obtained blood values of luteinizing hormone (LH), follicle-stimulating hormone (FSH), 17β-estradiol (E2), total testosterone (TT), sex hormone-binding globulin (SHBG) and the free androgen index (FAI). Personality was evaluated by the Buss-Durkee Hostility Inventory and the Sensation-Seeking Scale, form V. The results showed a lack of significant correlations between the measures of aggressiveness-hostility and hormones. Nevertheless, Spearman and Pearson correlations between Sensation Seeking and testosterone were positive and significant after controlling for age. Considerably higher correlations were obtained after controlling for LH and SHBG. A group of subjects with high scores in a factor made up of Experience Seeking, Disinhibition and Boredom Susceptibility obtained significantly higher scores on TT and FAI. Subjects with high scores in a factor made up of Assault, Indirect Aggression and Verbal Aggression obtained significantly higher scores in SHBG and TT. These findings support Zuckerman’s personality model for the sensation-seeking trait.