The Psychopath Whisperer: Inside the Minds of Those Without a Conscience, by Kent Kiehl

Luna Centifanti welcomes a disentanglement of popular confusions over brain and behaviour

May 8, 2014

In fiction and non-fiction, comics, television shows and films, the preponderance of people exhibiting psychopathy nearly rivals that of superheroes. And despite no end of volumes written by journalists, friends, relatives, media-darling scientists and people claiming to be psychopaths themselves, it is rare to find an accessible book on the subject by a researcher who is an acknowledged leader in the field. Kent Kiehl is the exception to the rule.

In spite of a title that doesn’t entirely capture the complexity of the topic Kiehl addresses so well, the book’s examination of electrophysiology and the use of magnetic resonance imaging (MRI) in studying psychopathy attest to the author’s expertise as a neuroscientist. Interestingly, its beginning is strongly reminiscent of Without Conscience: The Disturbing World of the Psychopaths Among Us, a 1993 work by Robert Hare, an eminent researcher and Kiehl’s PhD mentor. Both texts begin with anecdotes drawn from the authors’ time working in maximum security prisons where psychopaths challenged and threatened them, and include descriptions of the big red button to be pressed (irresistibly but futilely) in case of emergency. As a young scholar, Without Conscience inspired a passion in me to understand the developmental origins of psychopathy. Two decades later, Kiehl’s book looks certain to inspire a new generation of budding researchers.

Psychopathy typically leads, if not to murderous behaviour, then to a parasitic penchant to use people for personal gain

Particularly notable in Kiehl’s work is his use, unique to his lab, of a mobile MRI unit that allows him to perform brain scans on incarcerated research subjects for signs of psychopathy. In The Psychopath Whisperer, he offers an anecdote about the genesis of that innovation: he was once almost run off the road by an articulated lorry carrying such a unit. That brush with death suggested a practical way to solve the problem of the relatively low number of research participants within prison populations: bring the MRI to the prisoners, rather than the other way round.

As Kiehl acknowledges, the media and public tend to confuse illegal behaviour – and, in particular, exceptionally horrifying acts of violence – with psychopathy. In addressing the difference between the popular and scientific use of the terminology, The Psychopath Whisperer considers criminals with and without psychopathy. Near the beginning of the book, Kiehl focuses on one of his subjects, Mike, to show how criminal non-psychopaths such as he differ from criminal psychopaths: although Mike had a long history of criminal behaviour and had engaged in more than one bad act, he experienced guilt. Kiehl also considers the historical cases of two men who committed terrible crimes: John Wilkes Booth, who shot president Abraham Lincoln, and Charles Guiteau, who killed president James Garfield. He uses file reviews to attempt to diagnose psychopathy in the two using the Psychopathy Checklist created by his mentor Hare – a strikingly clever and effective way to show how two people who committed apparently similar acts can differ on psychopathy. (The only drawback in this instance is that Kiehl is comparing people who differed not only in their capacity for remorse, empathy and emotion but also in lifelong behaviours and motivation.)

Heated debates rage in and out of the disciplinary journals about the essential features someone must show to be classified as a psychopath, which Kiehl acknowledges is a scientific classification and not one yet recognised in the American Psychiatric Association’s periodically updated Diagnostic and Statistical Manual of Mental Disorders (DSM). The question remains whether one must be a criminal to be a psychopath, and this argument, notes Kiehl, has been going on for a century. (And, indeed, some of the historical issues around the DSM classification of antisocial personality disorder make one seriously consider having a squabble with behaviourists.) Early descriptions of psychopathy were virtually devoid of references to criminal or antisocial behaviour, but when diagnostic classifications were revised for the DSM-III in 1980, psychiatrists believed that behaviours were easier to assess than the more nebulous personality traits of emotional and empathy deficits. Thus, Kiehl says, antisocial personality disorder was born – somewhat unsatisfyingly, as diagnosticians and researchers saw the inherent heterogeneity in both this disorder and conduct disorder in children. Since then, researchers have been slogging away to add the affective deficits that were left out of the criteria.

In his book’s chapters on neuroscience, Kiehl considers psychopathy as a disorder of emotion, which he connects with findings drawing on brain imaging and behavioural work. His research connects these emotional deficits more clearly to the brain areas involved in emotion and empathy. Research on children with callous-unemotional traits, which Kiehl links with adult psychopathy, shows these same brain areas to be involved. His description of callous-unemotional traits, and their inclusion in the DSM-5 in 2013, is thorough and insightful. At times, Kiehl seems to argue that the presence of adolescent brain functioning deficits related to callous-unemotional traits suggests that these adolescents were born with such brain deficits. But, in an illuminating comparison, he acknowledges that brain abnormalities seen in adults with psychopathy could be due to environmental influences, similar to the atrophy of an unused muscle. Arguably the same might be said of adolescents with these traits, given the early abuse that juvenile offenders typically report. Importantly, Kiehl supports the idea of the potential for the adolescent brain to be reorganised – negatively or positively – because the typical developmental changes across the brain throughout development have yet to be systematically mapped.

People with psychopathy historically have been assumed to be resistant to treatment. Kiehl, however, points to a ray of hope in a chapter on an exciting and relatively new treatment facility for young offenders, the Mendota Juvenile Treatment Center in Wisconsin. The delight he takes in its development and success is every bit as infectious as his inveterate-foodie asides, throughout the book, about meals he’s enjoyed. The crux of his argument about treatment is that it has only recently been designed to directly target modifying behaviours in people with psychopathic traits using methods to which they are most likely to respond. He enthusiastically espouses programmes such as this one, that target young people who are arguably more amenable to treatment efforts, even young offenders with callous-unemotional traits and the hardest behaviours to manage. More funding, he argues, should be given to such programmes – and who could disagree?

Linked to the debate about the inclusion of criminal behaviour in classifications of psychopathy, there exists the unfounded idea that people with psychopathy make good citizens on occasion and are generally an asset to society – the Dexter hypothesis, if you will. But Kiehl insists, with decades of research to support him, that psychopathy is a disorder, both a moral and an emotional one. He emphatically states that such traits will pervade across one’s life, across relationships and across contexts. Psychopathy typically leads, if not to murderous behaviour, then to a parasitic penchant to use other people for personal gain, leaving many of the victims destitute and emotionally overwrought. It is not a transient comportment, he explains, or a momentary, fleeting lack of fear under threat of danger. And, although one of the psychopaths Kiehl meets provocatively declares that the Psychopathy Checklist should be renamed the Superman Checklist, people with psychopathy are rarely heroic. In The Psychopath Whisperer, Kiehl offers an insightful and memorable look into the troubled minds of people with psychopathy and invites us to explore further.

The author

“I do enjoy a good meal, and a better bottle of wine,” confesses Kent Kiehl, professor of psychology, neuroscience and law at the University of New Mexico and professor of translational neuroscience in the Mind Research Network.

Readers of The Psychopath Whisperer will surely have spotted his enthusiasm for food. He lives in New Mexico with his wife Lyn and their 16-month-old daughter Kaitlyn, dividing his time between Albuquerque and Taos, but his gastronomic discoveries are all over the map. “My favourite restaurant is Mastro’s Steak House in Phoenix, Arizona – and close seconds are any steakhouse in Chicago.”

What about the food he’s encountered in penitentiaries? “I have spent a few nights in prison, usually due to weather prohibiting us from leaving. One night in Canada we had a barbeque for those of us stuck at the prison. It was fun to run back and forth through the blowing snow to cook the burgers.”

Kiehl was born and raised in Tacoma, Washington, “about a mile from the home of serial killer Ted Bundy. My father was an editor on the local newspaper and he often chronicled the stories of Bundy, which became the frequent topic of our dinner conversations. Those conversations definitely shaped my interest in studying psychopaths.”

However, he was a comparatively late bloomer as a scholar. “My three sisters were the brainiacs growing up,” he recalls. “They got perfect grades all through school. I was a three-sport athlete, focusing on football, baseball and track. It wasn’t until my knee folded over in my first year of university that I realised I was not going to make a living with my legs – I needed to exercise my brain. I sought out a mentor who helped point me in the right direction, and I got immersed in research at the University of California, Davis. It was a wonderful environment and 20 years later, I am still very close with many of the professors I worked with there.” 

As an undergraduate at UC Davis, Kiehl says, “I was quite gregarious during my first few years. I was chair of my fraternities social club, and organised all sorts of events and parties. But once I got my academic brain turned on, I went through a bit of a change. I went from having hundreds of friends to just a few close ones and I went from getting Bs to straight As. I really got focused and determined to be a professor of psychopaths.” 

Kiehl attended the University of British Columbia in Vancouver, Canada for his master’s and his doctorate, where he studied under the renowned researcher Robert Hare.

Hare, says Kiehl, “created an environment that permitted his graduate students to flourish. It’s really impossible to overstate his influence on the field of psychopathy other than to say he created it. He’s the most cited scholar in our field’s history. He’s also the most cited scholar in the past five years, despite the fact he is technically retired. Dr Hare is a constant source of inspiration to me.”

Of the mainstream-friendly title of his latest work, Kiehl says, “I wrote the book for the general public and wanted to title to reflect the type of science we do. The ‘whispering’ includes understanding the unspoken motivation of psychopaths by studying their backgrounds, using brain scans to seek out what is going on inside their heads, and working towards treatment that changes their behaviour. All of these are plays on the word ‘whisperering’.” 

Is he troubled by the inaccuracies in portrayals of psychopaths in fiction, film and television?

“I hope people understand that television is fiction,” replies Kiehl. “But too often we see that television programmes are viewed by people as a source of the truth. I really hope people appreciate that shows such as Dexter are just entertainment and not serious works of science. There are also are many recent books that purport to be scientific nonfiction about psychopathy, but many of them are quite inaccurate and misleading, written by non-experts. 

“I have created a website at that is designed to help the public gauge the best works by the leading scientists in the field. I hope people read the best nonfiction first and then turn to the non-experts’ works and view them with a sceptical eye.”

Kiehl agrees that the US penal system – with its rise in rates of incarceration and statistically high rates of imprisonment of ethnic minorities – is in need of reform.

“My laboratory is heavily focused on trying to address such problems. We spend more money on crime in the US than on all health care! It is a staggering amount of money. I hope that the research and treatment work that we do leads to improvements in the system and I have generally found that the administration of different prisons and correctional departments are very receptive to doing more to help prevent recidivism and crime. They want the best for society in general, and the inmates in particular.”  

Of the time and energy he expends as an expert witness in court, often in high-profile trials, he says, “I take a lot of positives from the cases I work on. I am constantly trying to refine our understanding of how people end up committing offenses that lead to capital trials – with the goal of trying to prevent the crimes from ever happening again. I feel that scientists should be required to aid the legal system in any capacity that we can. I do a lot of judicial and legal education – it’s critical that we get the best science in the courtroom. We’ve even formed a consulting group to help lawyers and judges; visit for more information.

Why do prisoners offer to be Kiehl’s research subjects? He says: “I used to think the inmates volunteered because they were bored, but we did a number of surveys and most of inmates say they do the research because they want us to help figure out a way to help them not come back to prison. Nobody wants to be in prison, and the inmates want solutions to their problems too.” 

Does he believe he has ever met a psychopath who was not in prison or otherwise “known to authorities”?

Kiehl muses: “I have certainly had my clinical ‘spiderman’ sense go off a few times outside prison. I generally stick to my gut feelings in this regard and avoid dealings with the person who set off my radar. But generally it’s best to hold off making generalisations about someone until you have done a complete assessment of them.” 

Asked if he regrets the loss of a football career, Kiehl says he “never gave it a second thought. My fantasies now revolve around turning pro on the senior golf tour. If only I could just fix that slice!”

Karen Shook

The Psychopath Whisperer: Inside the Minds of Those Without a Conscience

By Kent Kiehl
Oneworld, 304pp, £9.99
ISBN 9781780745398
Published 15 May 2014

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