Which hormone has been linked to increased aggression in violent criminals according to Dabbs et al.?

• A. Estrogen
• B. Cortisol
• C. Testosterone
• D. Adrenaline

Answer: (C)

The hormone linked to increased aggression in violent criminals, as identified by research conducted by Dabbs et al., is testosterone. This association arises from studies indicating that higher levels of testosterone are often correlated with aggressive behaviors and criminality. Testosterone is a steroid hormone primarily produced in the testes and ovaries, and it plays a significant role in the development of male characteristics as well as influencing behaviors typically associated with aggression.

Research has shown that individuals with elevated testosterone levels may exhibit more dominant and aggressive behaviors, which can manifest in violent actions or criminal activities. This correlation has been further substantiated by studies that measure testosterone levels in individuals and compare them to their behavioral tendencies. Because testosterone is involved in the regulation of social dominance and risk-taking behaviors, its increased presence in certain individuals may lead to a heightened propensity for aggression.

In contrast, other hormones such as estrogen, cortisol, and adrenaline do not have the same direct association with aggressive behavior in the context of violent crime as testosterone does. Estrogen is primarily involved in female reproductive functions, cortisol is related to stress responses, and adrenaline (epinephrine) is associated with the body's 'fight or flight' response rather than chronic aggression or violence. Thus, when looking at the link between hormones and aggression in violent criminals