Are Psychopaths Smart? The Surprising Truth About Their IQ

Psychopaths are not that smart — perhaps even less intelligent than average.

Psychopaths are not that smart — perhaps even less intelligent than average.

Psychopaths are less intelligent than average, research finds.

Contrary to the common view of the psychopath as a criminal mastermind, they score below par on intelligence tests.

In general, far from being smart, psychopaths tend to do rather poorly in school — they are more interested in sensation-seeking, such as taking drugs.

Perhaps one of the reasons psychopaths appear smart is their confidence in social situations.

Psychopaths can quickly take charge and they also have a superficial charm.

Both factors can lead us into thinking they are also highly intelligent — but not so, it is probably all bluster.

Not so smart psychopaths

The research pulled together the results of 187 different studies including over 9,000 people whose intelligence and psychopathic tendencies were measured.

The study’s authors explain the results:

“The results of the current meta-analysis produced a small, but significant effect size suggesting that individuals who score higher on measures of psychopathic traits tend to score lower on measures of IQ.”

It included potentially smarter psychopaths with successful careers as well as those in prison.

Psychopaths are more likely to be criminals, but many are not.

Psychopaths are generally dishonest, manipulative and lacking in empathy — and also not that smart.

More on psychopaths

Find out more about psychopaths:

The study was published in the journal bioRxiv (de Ribera et al., 2018).

High Functioning Psychopaths And Sociopaths Hide Their True Personality

How so many high functioning psychopaths and sociopaths slip into positions of power without being detected.

How so many high functioning psychopaths and sociopaths slip into positions of power without being detected.

High functioning psychopaths and sociopaths, those who also have high IQs, can hide their true personalities, research finds.

It helps explains how people who are dangerous risk-takers are able to fake their way into powerful management positions.

High functioning psychopaths and sociopaths still have the major attributes: they have little regard for other’s emotions and easily lie, cheat and manipulate.

However, high functioning psychopaths and sociopaths are able to mask these negative aspects of their personalities in order to get what they want.

Due to high levels of education and interpersonal skills they can attain exalted levels in society.

Incidentally, from a clinical perspective there is no difference between a psychopath and a sociopath — the words can be used interchangeably (see: Psychopath vs Sociopath: Here’s The Difference).

The research

The conclusions come from a study published in the Journal of Forensic Psychiatry and Psychology, which was inspired by the unusually high levels of psychopaths and sociopaths among business managers (Bate et al., 2014).

Research has found that while around 1 percent of the general population are psychopaths, the level rises to 3 percent among business managers.

Ms Carolyn Bate, the study’s first author, said:

“I thought that intelligence could be an explanation for this, and it could be a problem if there are increased numbers of psychopaths at a high level in business.

The figure could be more than three per cent, because if people are aware they are psychopathic they can also lie – they are quite manipulative and lack empathy.”

The charming psychopath or sociopath

The psychopaths in business are quite different from the lurid picture painted by the media, Ms Bate explained:

“The ones who are at the top of businesses are often charming and intelligent, but with emotional deficits, as opposed to psychopaths who are quite erratic and tend to commit gruesome crimes and are often caught and imprisoned.”

To test these ideas the researchers gave a group of people a standard test of psychopathy.

They were also shown a series of pictures which tested their levels of empathy and, at the same time, their galvanic skin response was measured to assess their emotional reaction to the pictures.

Psychopaths and sociopaths with average or high intelligence were able to regulate their galvanic skin response so that their tests appeared normal.

Those psychopaths with low intelligence in the study, though, showed abnormal responses typical of psychopaths.

Perhaps with this, and other techniques, high functioning psychopaths with high intelligence are able to blend in with other people by pretending to have the same responses as them.

Symptoms of high functioning psychopaths and sociopaths

Along with high IQ, other signs and symptoms of high functioning psychopaths include:

  • Charm: high functioning psychopaths often have very good social skills.
  • Addictive behaviours: those with high-functioning personalities are sometimes prone to addictive behaviours.
  • Sensitivity: these types of people may be quick to anger.
  • Lack of empathy: like other psychopaths, the high functioning often have a lack of empathy and little interest in how their actions affect others.
  • Secretive: they like to keep things private unless they want to manipulate someone.
  • Calculation: they work out how to get what they want and then stick to the plan whatever the cost to others.

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The 2 Key Personality Traits Of A Psychopath

The two strongest signals that someone is a psychopath.

The two strongest signals that someone is a psychopath.

Two key personality traits of a psychopath are being callous and unemotional, research finds.

Being callous means having a cruel disregard for others.

Callous people lack compassion, are cold-blooded and heartless.

On top of this, psychopaths typically have difficulty responding to the emotions of others in a normal way — they also appear unemotional themselves.

For example, psychopaths tend to show no feeling when they see others in pain.

However, some psychopaths use an unemotional exterior to hide inner turmoil.

Professor Tim Stickle, who led the study, explained that a sub-group of psychopaths do experience strong emotions:

“They appear callous and unemotional to others but their own emotional experience is that they’re very distressed, have high levels of anxiety, higher levels of depression, higher levels of emotion.

We think of these harmful, antisocial, aggressive kids as being immune to fear, immune to negative feelings, but in fact we’re showing a whole group of them are not only not immune, but are very susceptible.”

The conclusions come from a study of 150 adolescents held in juvenile detention centres.

All were classified as callous and unemotional and most conformed to this stereotype — but not all.

A small group fell into a category the researchers label “low psychopathy delinquents”.

Other studies have also shown that among adults there is a group who look like psychopaths, but actually experience strong emotions.

Professor Stickle said:

“It’s not just one characteristic that allows clear identification of who falls in which group; it takes a wide range of traits.

These traits are particularly prevalent in adolescent females in the juvenile justice system.

Untreated callous unemotional traits put these youth at risk for becoming lifelong criminals.”

The researchers hope that identifying and treating this sub-group can help save them from a lifetime of antisocial behaviour — and society from its consequences.

The study was published in the Journal of Abnormal Child Psychology (Gill & Stickle, 2015).

Liking These Foods And Drinks Reveals Psychopathic Tendencies

People in the study rated how much they liked various foods and beverages and took a personality test.

People in the study rated how much they liked various foods and beverages and took a personality test.

Having a preference for bitter tastes is linked to psychopathy, narcissism and everyday sadism, a study finds.

A predilection for tonic water or coffee, therefore, could indicated some psychopathic tendencies in a person’s personality.

In contrast, people who dislike bitter tastes tend to be more agreeable, the researchers discovered.

For the study 500 men and women were shown a list of foods, some of which were salty, sour, bitter and sweet.

Some common bitter foods and drinks included were radishes, unsweetened cocoa and vinegar.

People rated how much they liked each food or beverage and took a personality test which measured:

  • aggression,
  • selfishness,
  • psychopathy,
  • and narcissism.

Seeking sensation

Bitter tastes may be particularly attractive to those with darker personalities because they enjoy sensation-seeking.

Darker personality types have a greater preference for the ups and downs of life.

They may even have a greater sensitivity to bitter foods, as the authors write:

“Supertasting, that is, having a high sensitivity to bitter compounds, has been consistently linked to increased emotionality in humans.

Nontasters, in contrast, report being more relaxed and placid than tasters.”

Caffeine and spicy foods have already been linked to sensation-seeking:

“…people high in sensation seeking tend to have an increased preference for spicy food.

Caffeine consumption is positively correlated with other facets of sensation seeking behavior, such as experience seeking and disinhibition.”

The authors describe their results:

“…bitter taste experiences are causally linked to hostile thoughts and behavior…

Particularly robust associations were found for everyday sadism, which was significantly predicted by general bitter taste preferences…”

The study was published in the journal Appetite (Sagioglou & Greitemeyer, 2016).

Do Psychopaths Ever Change? Here’s What Those Closest To Them Say (M)

For the study, people who knew psychopaths and those with antisocial personality disorder (APD) were asked about their behaviour.

For the study, people who knew psychopaths and those with antisocial personality disorder (APD) were asked about their behaviour.

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Psychopaths Have One Brain Region That Is 10% Larger (M)

It could explain why psychopaths have an increased need for stimulation and are more likely to be impulsive.

It could explain why psychopaths have an increased need for stimulation and are more likely to be impulsive.

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Psychopaths: How To Tell Which Ones Are Criminals

Brain scans on 14 convicted psychopathic individuals reveals the criminal traits of their brain activity.

Brain scans on 14 convicted psychopathic individuals reveals the criminal traits of their brain activity.

A lack of self-control and a focus on rewards is strongly linked to criminal behaviour, research finds.

Brain scans have revealed this is the critical difference between an ordinary psychopath and a criminal psychopath.

Despite popular belief, being a psychopath does not automatically make someone a criminal — although it does help.

Many criminals have psychopathic traits, such as impulsive and antisocial behaviour.

However, many people with psychopathic traits never commit criminal offences.

The research used brain scans to investigate what turns an ordinary psychopath into a criminal psychopath.

Dirk Geurts, the study’s first author, explained the research:

“We carried out tests on 14 convicted psychopathic individuals, and 20 non-criminal individuals, half of whom had a high score on the psychopathy scale.

The participants performed tests while their brain activity was measured in an MRI scanner.

We saw that the reward centre in the brains of people with many psychopathic traits (both criminal and non-criminal) were more strongly activated than those in people without psychopathic traits.

It has already been proved that the brains of non-criminal individuals with psychopathic traits are triggered by the expectation of reward.

This research shows that this is also the case for criminal individuals with psychopathic traits.”

Mr Geurts explained the results:

“There is a difference in the communication between the reward centre and an area in the middle of the forebrain.

Good communication between these areas would appear to be a condition for self-control.

Our results seem to indicate that the tendency to commit an offence arises from a combination of a strong focus on reward and a lack of self-control.

This is the first research project in which convicted criminals were actually examined.”

Both impulsivity and very antisocial, egocentric behaviour are key to criminal psychopathy, said Professor Robbert-Jan Verkes, who led the research:

“Especially [these] traits seem to be connected with an excessively sensitive reward centre.

The presence of these impulsive and antisocial traits predict criminal behaviour more accurately than a lack of empathy.”

The study was published in the journal Social Cognitive and Affective Neuroscience (Geurts et al., 2016).

Psychopaths Are Raised By Parents Who Treat Children Like This (M)

Typical callous-unemotional traits linked to psychopathy include cheating, lying and a lack of remorse.

Typical callous-unemotional traits linked to psychopathy include cheating, lying and a lack of remorse.

Parents who mistreat their offspring are more likely to raise children with psychopathic traits, research finds.

Both girls and boys who are subject to harsh and negative parenting are at a greater risk of developing callous-unemotional traits, which can develop into psychopathy.

Typical callous-unemotional traits include cheating, lying and a lack of remorse.

While the connection is well-known in males, this is one of the first studies to include females.

Ms Bridget Joyner, the study’s first author, said:

“Most studies that have looked at similar associations have not included females in their samples; it’s been strictly males.”

The study included over 4,000 young people whose callous-emotional traits were assessed along with any childhood maltreatment.

The results showed that while both sexes tended to develop callous-emotional traits when treated badly by parents, the link was weaker among females.

Callous-emotional traits are a precursor to psychopathy, which is linked to criminal behaviour.

Professor Kevin Beaver, study co-author, said:

“We know that males tend to respond to adverse experiences in more external ways, through behavior and other visible traits.

Females are more likely to internalize.

That can mean developing things like chronic stress, anxiety and depression.”

Callous-emotional traits are thought to be one way that young people cope with their harsh upbringing, said Ms Joyner:

“The development of these traits is thought to make them more withdrawn and help to protect them from being hurt again.”

If childhood maltreatment could be identified earlier, it may be possible to slow or stop the development of undesirable personality traits, said Ms Joyner:

“It’s important to be able to identify the risk factors that tell us how to look at and treat these individuals and to impede the development of these traits.

And when we can’t impede them then we need to treat them for it so the pattern isn’t repeated.”

The study was published in the journal Child Abuse & Neglect (Joyner & Beaver, 2021).

The Type of People Most Likely To Be Manipulative, Self-Admiring Psychopaths (M)

The type of people most likely to be psychopaths, narcissists and manipulators.

The type of people most likely to be psychopaths, narcissists and manipulators.

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