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- In 1993, Canadian psychologist Robert Hare, the creator of the famous Hare Psychopathy Checklist, defined psychopaths as “social predators who charm, manipulate, and ruthlessly plow their way through life.”
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But are psychopaths really such dangerous social predators in need of extra-diligent control? In this talk, Dr. Rasmus Rosenberg Larsen presents recent research, which he believes should prompt use to rethink the use of psychopathy assessments in the criminal justice system.
Dec 7, 2015 · When the psychopath does display violence - affective or predatory - the only safe place to be is a place away from the psychopath.
Psychopaths are social predators who charm, manipulate, and ruthlessly plow their way through life, leaving a broad trail of broken hearts, shattered expectations, and empty wallets.
- Overview
- When the brain is not ‘equipped’ for empathy
- Are psychopaths just bad decision-makers?
- Is testosterone to blame?
- An incurable, yet treatable, condition
Psychopaths are known for their selfishness, callousness, and violence. These antisocial personality traits are often baffling to the rest of us, but could brain differences help to explain them? And, more importantly, do such hardwired differences help or hinder treatment?
Psychopathy is generally considered to be a personality disorder.
Although the Diagnostic and Statistical Manual of Mental Disorders (DSM) does not formally acknowledge psychopathy as a standalone condition, it incorporates it under the wider “antisocial personality disorder.”
But what is a psychopath? In 1993, Canadian psychologist Robert Hare, the creator of the famous Hare Psychopathy Checklist, defined psychopaths as “social predators who charm, manipulate, and ruthlessly plow their way through life.”
“Completely lacking in conscience and feeling for others,” he goes on to say, psychopaths “selfishly take what they want and do as they please, violating social norms and expectations without the slightest sense of guilt or regret.”
Does any of this sound familiar? The stereotypical portrait of the psychopath may call to mind such fictional characters as Hannibal Lecter, or even real personalities such as the serial killers Ted Bundy or Jeffrey Dahmer. However, some argue that most psychopaths live among us.
“A marked lack of empathy is a hallmark characteristic of individuals with psychopathy,” explains Jean Decety, the Irving B. Harris Professor in psychology and psychiatry at the University of Chicago in Illinois, and a world-renowned expert on the neuroscience of empathy.
Several studies have suggested the neural basis for empathy is either faulty or lacking altogether in the psychopathic brain.
Research has indicated that psychopaths might have an impaired mirror neuron system — that is, difficulties with the neurons that, in a healthy brain, activate both when we perceive someone else doing an action and when we do that same action ourselves.
Other, now classic, studies have found reduced volumes of gray matter in the brain’s so-called paralimbic system — the conglomerate of brain regions responsible for emotion regulation and self-control, setting goals, and staying motivated in the face of delayed gratification.
More recently, Prof. Decety has led several experiments that suggest that psychopaths simply lack the neural “equipment” for empathy.
He and his team scanned the brains of 121 inmates held in a U.S. medium-security prison while they were shown images of painful situations. The study participants were also assessed using the Hare Psychopathy Checklist-Revised (PCL-R).
Some have suggested that psychopaths are not evil, just…really bad at making decisions. Joshua Buckholtz, an associate professor of psychology at Harvard University in Cambridge, MA, and his colleagues scanned the brains of 49 inmates held in two medium-security prisons while asking them to complete a delayed gratification test.
This is a situation wherein they had to choose between receiving less money immediately or more money later on.
They found that a brain area called the ventral striatum — a region tied to evaluating the value of immediate rewards — was overly active in participants deemed highly sociopathic on the PCR-L scale. Psychopaths, then, might simply overestimate the value of their immediate rewards.
This finding also correlates with the aforementioned work regarding the key role of the vMPFC in psychopathy. The vMPFC, explain Buckholtz and his colleagues, controls the reward-processing ventral striatum.
So, if we want $100,000 but in order to get that we’d have to kill someone, our vMPFC can tell the ventral striatum, “Hang on a minute! You may want to reassess that trade-off — is it really worth taking someone else’s life for money? And can you bear the consequences of your actions?”
But Buckholtz and colleagues found that in psychopathic brains, the vMPFC and the ventral striatum are not communicating.
Overall, therefore, there seems to be a consensus among researchers that psychopathy is down to faulty brain circuits. But what causes these disconnects between brain areas? Some have suggested that the male sex hormone testosterone could be the culprit.
A study conducted by researchers led by Prof. Karin Roelofs, at the Donders Institute at Radboud University in the Netherlands, confirmed that the brains of psychopaths showed poor connectivity between the amygdala — the brain region key for processing emotions, especially fear — and the more “judging,” wiser prefrontal cortex.
What is more, the study found that these people also had very high levels of testosterone and lower activity in their prefrontal cortex. The overabundance of testosterone may explain why there are more male psychopaths than there are female ones.
“Psychopathic individuals,” write the authors of the study, “are notorious for their controlled goal-directed aggressive behavior. Yet, during social challenges, they often show uncontrolled emotional behavior.”
Prof. Roelofs and colleagues refer to this as the “paradoxical aspect of psychopathy.” Interestingly, the researchers say that their findings bring hope and inform future strategies for treating this aspect, which may be down to “a potential imbalance in testosterone function.”
But isn’t this too optimistic? The general consensus seems to be that psychopathy cannot be cured. However, that doesn’t stop us from asking, “Can it be treated?”
If psychopathic traits are so firmly rooted in our neural networks, does that mean that therapeutic interventions are doomed to fail? Not necessarily, researchers say.
Due to the brain’s neuroplasticity, Prof. Decety and colleagues suggest that both cognitive therapy and drugs may help to repair the broken “connections” between brain areas.
Prof. Roelofs and team are also optimistic. Often, they argue, psychopaths also have attentional deficits — for example, so if conditions such as attentional deficit disorder can be treated, why couldn’t psychopathy?
The greatest challenge of treating psychopathy, however, relies on the fact that psychopaths seem to be immune to punishment. Guiltless and remorseless, psychopaths do not seem to fear or learn anything from retribution, perhaps because of the broken connection between the brain’s amygdala and the prefrontal cortex.
However, a model that centers on positive reinforcement instead may work. Developed by the staff at the Mendota Juvenile Treatment Center (MJTC) in Madison, WI, the so-called Decompression Model is a cognitive-behavioral intervention that immediately rewards every positive action or gesture, no matter how small.
Additionally, the rewards are scalable. The highly psychopathic youth were told that if they persist with their positive behavior, the small reward they got at first — say, being told “well done” — can progress into some delicious dessert, and later on into the right to play video games, and so on.
Dec 28, 2017 · Social predators live by taking advantage of others. They come in all varieties, shapes, and forms, from every level of society. Some live lawlessly on the streets, mugging people or worse.
Sep 12, 2018 · As mentioned above, a number of researchers have suggested that psychopaths are social predators, using manipulation and aggression to exploit the cooperation of others (e.g., Mealey 1995), an assumption that has been borne out in the literature.
Nov 10, 2023 · Psychopathy is a mental disorder causing a person to lack empathy. Learn the traits and the difference between a psychopath and sociopath.
