New Issue: Orbital Catastrophe Ahead? Read Now

How to Identify a Psychopath or Sociopath

The terms “psychopath” and “sociopath” often get used interchangeably, but they’re not exactly the same. Regardless of semantics, here’s how to spot the heartless, charming evil of a psychopath or sociopath

Join Our Community of Science Lovers!

Thanks to Savvy Psychologist listener Cindy Jossart of Webster City, Iowa for the idea for this week's podcast.

With darkness in their hearts, ice water in their veins, and snake-charming smiles on their faces, psychopaths make up anywhere from 0.6% to 4% of the population. This personality disorder affects men more frequently than women.  It’s been documented in cultures the world over. Here's a great icebreaker for your next cocktail party: the Native Alaskan peoples call psychopaths "kunlangeta." 

The brain of a psychopath is different than yours or mine (unless you're a psychopath).  It has a smaller prefrontal cortex—the part that regulates behavior, impulse control, and planning—and a deformed amygdala, the seat of negative emotions like fear, guilt, and sadness.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


You can’t tell superficially who is a psychopath—so let’s get to know them.  Here are 3 traits of psychopaths, plus the difference between a psychopath and a sociopath:

Psychopath Trait #1: Fearless Dominance
Let’s look at fearless dominance from an empathetic point of view (ironically, something psychopaths lack).  Imagine total freedom from fear, anxiety, or guilt.  You do whatever you want without the pesky hindrance of conscience, social consequences, authority figures, or worrying about the well-being of others.  You know the rules of society; you just don’t care.

Continue reading on QuickAndDirtyTips.com

Subscribe to Support Independent Journalism

Great science journalism requires human expertise, time, effort and creativity. And it costs money. That’s why I and the journalists here at Scientific American hope you’ll join our community.

When you subscribe, you are supporting staff and freelance journalists who are passionate about telling science stories that are true, important and compelling. Our editors and reporters are often experts in their fields, which means they understand the nuances of big discoveries and can untangle the breakthroughs from the hype. With a subscription, you are also supporting rigorous fact-checking to ensure the words we publish are precise and accurate. And you’re supporting original illustrations, graphics and photos that bring you closer to an advanced laboratory, an ice sheet in Antarctica or a space mission in orbit. You’re helping us craft other types of high-quality journalism as well: Our newsletters are carefully written, edited and curated by staffers you have or will come to know and love. Our Science Quickly podcast is based on original reporting, collaboration with editors and scientists and exacting production.

Subscriptions keep this engine running so we can continue to deliver thoughtful, rigorous and independent science journalism to you. In an era of viral misinformation, this work is crucial. If you value what we do, I hope you’ll consider joining us as a subscriber

Thank you,

Jeanna Bryner, Editor in Chief, Scientific American

Subscribe