Psychopathy involves a combination of personality traits and behaviors, and whether those can change depends on which ones you’re talking about. The impulsive, antisocial behaviors linked to psychopathy do tend to decrease over time, especially with age and targeted treatment. The deeper emotional traits, like a lack of empathy or guilt, are far more resistant to change. So the honest answer is: some parts of psychopathy can shift, but a full transformation into someone who genuinely feels empathy the way most people do is not something current science has demonstrated.
What Psychopathy Actually Involves
Psychopathy is measured using a 20-item checklist that scores personality and behavior traits on a scale. Those traits fall into two broad categories. The first, called Factor 1, captures emotional detachment: superficial charm, manipulativeness, shallow emotions, and the absence of guilt or empathy. The second, Factor 2, captures antisocial behavior: impulsivity, aggression, irresponsibility, a tendency toward boredom, and a pattern of rule-breaking that starts early in life.
This distinction matters because the two factors don’t behave the same way over time or respond to treatment in the same way. Psychopathy isn’t a formal diagnosis in the main psychiatric manual (the DSM-5), but it does appear as a specifier for antisocial personality disorder, described as a “distinct variant” involving a bold interpersonal style that can mask harmful behavior. Think of it as the clinical system acknowledging that not all antisocial behavior looks the same, and that the cold, calculating version is its own category.
The Brain Differences Behind It
People with high psychopathy scores show measurable structural and functional differences in the brain. Two areas stand out: the ventromedial prefrontal cortex, which helps with moral reasoning and decision-making, and the anterior cingulate cortex, which plays a role in emotional regulation. Both regions show lower gray matter density in people with psychopathy.
The wiring between brain regions is also affected. A key tract of white matter that connects the decision-making areas of the brain to the amygdala (the brain’s threat and emotion center) shows reduced integrity. Brain imaging studies have confirmed weaker functional connectivity between the amygdala and the prefrontal cortex at rest, and abnormal activity in these areas during tasks like fear conditioning, where a person learns to associate a stimulus with something unpleasant. These aren’t subtle software glitches. They’re hardware-level differences that affect how the brain processes fear, guilt, and emotional connection to other people.
Which Traits Change With Age
One of the more consistent findings in psychopathy research is that the antisocial, impulsive traits (Factor 2) decline naturally as people get older. This follows the well-established age-crime curve: criminal behavior tends to peak in late adolescence and early adulthood, then gradually drops through the 30s and 40s. People with high psychopathy scores follow this curve too, just on a delayed timeline.
By around age 30, people with psychopathy and those without it engage in similar rates of nonviolent criminal activity. By around age 40, their rates of violent criminal activity converge as well. This pattern holds for both men and women. In one study of incarcerated women, younger participants scored significantly higher on Factor 2 traits than older participants.
Here’s the catch: Factor 1 traits, the emotional core of psychopathy, don’t show the same decline. The charm, the manipulativeness, the inability to feel genuine remorse, these remain relatively stable across the lifespan. So while a person with psychopathy may become less reckless and less likely to end up in prison as they age, the fundamental way they relate to other people tends not to shift much.
Treatment That Has Worked (and Treatment That Backfired)
The treatment history for psychopathy includes one of the most cautionary findings in forensic psychology. A landmark study from 1992 found that traditional therapeutic community treatment actually made things worse for people with psychopathy. Among non-psychopathic offenders, treatment cut violent reoffending roughly in half (22% for treated vs. 45% for untreated). But among those with high psychopathy scores, the pattern reversed: 77% of treated individuals went on to commit violent offenses, compared to 55% of untreated ones. The prevailing theory is that group therapy taught these individuals better social skills for manipulation without changing their underlying motivations.
That finding shaped the field for years, creating a belief that psychopathy was essentially untreatable. But more recent, specialized approaches have produced better results, particularly with younger people. The Mendota Juvenile Treatment Center in Wisconsin developed what’s called a “decompression” model, designed for the most aggressive and disruptive incarcerated youth. Rather than escalating punishments in response to bad behavior (which tends to create a cycle of defiance and lockdown), the model gradually lifts restrictions as the young person demonstrates progress, similar to how a diver ascends slowly to avoid the bends.
In an early study of 30 juvenile offenders, the reoffending rate was 10% for those who received decompression treatment, compared to 70% for those who received assessment only. A larger follow-up study compared high-psychopathy youth treated at Mendota to similar youth in traditional correctional facilities and found significantly lower rates of violent reoffending at the two-year mark. Another treatment study found that among high-psychopathy individuals who received seven or more therapy sessions, only 6% were violent at follow-up, compared to 23% of those who received fewer sessions.
These results are genuinely encouraging, but they come with important context. The outcome being measured is behavior, specifically whether someone commits another violent offense. That’s not the same as measuring whether someone has developed the capacity to feel empathy or guilt.
The Empathy Question
One of the more interesting findings in recent neuroscience challenges the idea that people with psychopathy are completely incapable of empathy. In a brain imaging study, participants with psychopathy watched videos of people’s hands in various scenarios. As expected, the brain areas involved in empathy showed less activation compared to controls. But when researchers explicitly instructed these participants to try to empathize with the person in the video, that gap in brain activation shrank significantly.
The researchers concluded that people with psychopathy don’t have a total inability to empathize. Instead, the brain mechanisms for empathy exist but aren’t automatically activated. Think of it as the difference between ability and habit. Most people’s brains fire up empathy circuits without conscious effort, like a reflex. In psychopathy, that reflex is absent, but the underlying capacity can sometimes be engaged with deliberate effort.
This has practical implications. It suggests that therapy might help some individuals learn to consciously activate empathic responses in situations where it matters, even if it never becomes automatic. It also means that behavioral change (choosing not to harm someone) might be achievable even without the emotional experience that typically motivates that choice in most people. Whether you consider that “real” change is partly a philosophical question.
Managing Impulsivity and Aggression
While no medication treats psychopathy as a whole, certain drugs can help manage the impulsive aggression that drives much of the harm associated with it. Medications originally developed for seizure disorders have shown effectiveness in reducing aggression, likely because they act on brain systems that suppress impulsive behavior. Some mood stabilizers have also shown benefit in reducing aggression among children and adolescents with conduct disorder, which is often a precursor to adult antisocial behavior.
These medications don’t change personality. They lower the threshold at which someone acts on aggressive impulses, which can be the difference between a confrontation and a violent offense. For many individuals with psychopathic traits, managing impulsivity is the most achievable and impactful target.
What This Means in Practice
If you’re asking whether a psychopath can change because someone in your life has these traits, the realistic picture looks like this: behavioral change is possible, especially with specialized treatment and especially if the person is young. The impulsive, reckless dimension of psychopathy tends to mellow with age regardless of treatment. But the core emotional traits, the shallow affect, the lack of genuine remorse, the instrumental view of other people, are deeply rooted in brain structure and function. They can potentially be managed or compensated for, but expecting them to disappear is not supported by current evidence.
The most effective approaches focus on changing what someone does rather than who they are. Reward-based systems work better than punishment-based ones. Intensive, sustained treatment outperforms brief interventions. And the earlier treatment begins, the better the outcomes. For adults with entrenched psychopathic traits, the goal shifts from transformation to harm reduction: fewer victims, less destruction, more predictable behavior. That’s not the hopeful answer most people are looking for, but it’s the honest one.