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

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe