Hi, we've got three stories from Curiosity.com to help you get smarter in just a few minutes.

I'm Cody Goff.

And I'm Ashley Hamer.

Today, you'll learn how psychopath brains are different, a holographic brain device that can create false sensations and the surprising reason why cities are full of squirrels.

Plus a bonus follow-up on Francis Drake. Let's satisfy some curiosity.

Ashley, do you know any psychopaths?

Uh, probably.

Well, a recent study has found one way a psychopath's brain is wired differently.

They overvalue immediate rewards.

So your average brain probably thinks about the consequences of rash decisions,

but this study used the brain scans of prison inmates

to show that a psychopath's brain is wired in a way that doesn't consider repercussions.

The study's senior author, Joshua Buckholtz, is an associate professor of psychology at

Harvard, and he said this is a big deal because for a long time we've been focused on the idea that

psychopaths can't generate emotions and that's why they do terrible things.

But the feelings they have or don't have, I mean that's not really what people care about right?

It's the choices they make. Psychopaths commit a lot of crime and it's

really devastating types of crime to victims and society as a whole. So this team has shown that a psychopath's lack of emotion

might not actually be the primary driver of these bad choices. Buckholz said, quote,

the same kind of short-sighted impulsive decision-making that we see in

psychopathic individuals has also been noted in compulsive overeaters and substance abusers.

If we can put this back in the domain of rigorous scientific analysis, we can see

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