Aggression and violence represent a significant public health concern and a clinical
challenge for the mental healthcare provider. A great deal has been revealed regarding the …

We review the literature on aggression in women with an emphasis on laboratory
experimentation and hormonal and brain mechanisms. Women tend to engage in more …

Consensus is emerging that the constellation of dark personalities should include the
sadistic personality. To build a four-factor measure, we modified and extended the Short …

Previous theory and research on the structural, longitudinal, and genetic nature of
psychopathy have provided strong conceptual and empirical evidence that overt antisociality …

Highlights•This paper reviews evidence for the dual-hormone hypothesis.•Testosterone's
association with status-relevant behavior depends on cortisol.•Behaviors include …

Recent theories propose that testosterone should be positively related to risk-taking, but
empirical support is mixed. Building on the dual-hormone hypothesis, the present research …

The construct of psychopathy is becoming increasingly more important to the clinical and
criminal justice systems and to society in general. The dominant instrument for the clinical …

According to the dual-hormone hypothesis, the relationship between testosterone and status-
relevant behavior is moderated by cortisol, suggesting this relationship only exists when …

Highlights•Human correlational studies show a weak link between testosterone and
aggression.•Acute changes in testosterone during competition increase subsequent …

Psychopathic individuals identified through contemporary instruments vary considerably in
personality and etiological background, which creates confusion in practice and …