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Sex and the Psychopath


The intersection between sex and psychopathy is a topic that has garnered significant attention from researchers, clinicians, and the general public alike. Psychopathy, which is characterized by a lack of empathy, a superficial charm, manipulative behavior, and a propensity for violence, is a personality disorder that affects approximately 1% of the general population (Brazil et al., 2018). Despite its relatively low prevalence, psychopathy has been associated with a wide range of negative outcomes, including an increased risk for engaging in sexually violent behaviors (Hare, 1996; Seto & Lalumière, 2010). This connection between psychopathy and sexual deviance has led to a growing interest in understanding how psychopathic traits influence sexual behavior, motivations, and preferences.

Understanding Psychopathy

Before delving into the relationship between psychopathy and sex, it is important to first have a clear understanding of what psychopathy entails. Psychopathy is not the same as antisocial personality disorder (ASPD), although the two are often used interchangeably. While ASPD is characterized by a disregard for the rights and feelings of others, psychopathy is a more specific and severe manifestation of this personality disorder (Brazil et al., 2018).

Psychopathy is commonly assessed using the Psychopathy Checklist-Revised (PCL-R). This instrument evaluates 20 different characteristics of psychopathy, including superficial charm, grandiosity, and impulsivity (Hare, 1991). Individuals are rated on a scale from 0 to 2 for each item, with a maximum total score of 40. A score of 30 or above is typically considered indicative of psychopathy (Hare, 1991). The PCL-R has become the gold standard in the assessment of psychopathy and is widely used in both research and clinical settings.

Sexual Behavior and Psychopathy

One of the most prominent and concerning aspects of psychopathy is its association with sexually violent behavior. Psychopathic individuals are more likely to engage in a variety of sexually deviant activities, including rape, non-consensual sexual acts, and sexual aggression (Hare, 1996; Seto & Lalumière, 2010). Research has consistently found a positive correlation between psychopathy and sexual aggression, suggesting that individuals high in psychopathic traits are more likely to perpetrate sexually violent acts (Seto & Lalumière, 2010).

Several theories have been proposed to explain the link between psychopathy and sexual aggression. One prominent theory suggests that individuals with high levels of psychopathy possess a “sexual sadism” component, characterized by a desire to dominate and control others through sexual means (Hare, 1996; Seto & Lalumière, 2010). These individuals may derive pleasure from causing harm to their victims or experiencing a sense of power and control during the act of sexual violence.

Another possible explanation for the association between psychopathy and sexual aggression is the reduced empathy typically observed in individuals with psychopathic traits. Lack of empathy is a core characteristic of psychopathy, and this deficit in emotional responsiveness may contribute to a reduced capacity for considering the feelings and well-being of others, particularly in the context of sexual encounters (Hare, 1996). Without the ability to empathize with their victims, psychopathic individuals may engage in sexually violent acts without guilt or remorse.

Sexual Motivations and Preferences in Psychopathy

Understanding the motivations and preferences underlying the sexual behavior of individuals with psychopathy is crucial for developing effective prevention and intervention strategies. Several studies have examined the sexual motivations of psychopathic individuals to shed light on their unique inclinations.

One study found that among incarcerated psychopathic individuals, power and domination were the most frequently reported sexual fantasies (Porter et al., 2009). This finding aligns with the previously mentioned theory of sexual sadism, suggesting that psychopaths may derive gratification from exerting control over their sexual partners through acts of aggression or violence. Additionally, psychopathic individuals often reported a lack of interest in emotional closeness or romantic relationships, further emphasizing their focus on power and control rather than emotional connection (Porter et al., 2009).

In terms of sexual preferences, research has shown that individuals with psychopathy display a greater proclivity for engaging in various forms of sexual deviance compared to non-psychopathic individuals (Hare, 1996). This may include engaging in risky sexual behaviors, frequent promiscuity, and a preference for non-consensual or coercive sexual acts (Seto & Lalumière, 2010). These findings highlight the unique sexual preferences and behaviors that are common among individuals with psychopathy.

Neurobiological Correlates

To further understand the relationship between sex and psychopathy, researchers have turned to examining the neurobiological underpinnings of psychopathy. Neurobiological research has revealed potential brain abnormalities that may contribute to both psychopathic traits and sexual deviance.

One brain region that has been implicated in psychopathy is the amygdala. The amygdala is responsible for processing emotional information, and abnormalities in this region have been observed in individuals with psychopathy (Blair et al., 2006). Studies have shown that individuals with psychopathy display reduced activation in the amygdala when presented with emotional stimuli, indicating a deficit in emotional responsiveness (Blair et al., 2006). This reduced emotional reactivity may contribute to the lack of empathy commonly observed in individuals with psychopathic traits, potentially influencing their sexual behavior and preferences.

In addition to the amygdala, the prefrontal cortex (PFC) has also shown abnormalities in individuals with psychopathy. The PFC is involved in executive functioning, impulse control, and decision-making (Brazil et al., 2018). Research has revealed that individuals with psychopathy display reduced grey matter volume in the PFC, particularly in regions associated with emotional processing and response inhibition (Brazil et al., 2018). These neurobiological impairments may contribute to the impulsive and reckless sexual behavior often exhibited by individuals with psychopathic traits.


In conclusion, the relationship between sex and psychopathy is complex and multidimensional. Psychopathic individuals are more likely to engage in sexually deviant behaviors and display a greater proclivity for sexual aggression. Understanding the motivations, preferences, and neurobiological correlates of the sexual behavior of individuals with psychopathy is crucial for effective prevention and intervention strategies. Further research is needed to better understand the mechanisms underlying these associations and to develop targeted interventions that promote healthy sexual expression while minimizing the risk of harm.