• by Gord Hotchkiss , Featured Contributor, Yesterday

Curiosity is good for the brain. It’s like exercise for our minds. It stretches the prefrontal cortex and whips the higher parts of our brains into gear. Curiosity also nudges our memory, making muscles into action, and builds our brain’s capacity to handle uncertain situations.

But it’s hard work, mentally speaking. It takes effort to be curious, especially in situations where curiosity could figuratively “kill the cat.” The more dangerous our environment, the less curious we become.

A while back, I talked about why the world no longer seems to make sense. Part of this is tied to our appetite for curiosity. Actively trying to make sense of the world puts us “out there,” leaving the safe space of our established beliefs behind. It is literally the definition of an “open mind” – a mind that has left itself open to being changed. And that’s a very uncomfortable place to be when things seem to be falling down around our ears.

Some of us are naturally more curious than others. Curious people typically achieve higher levels of education (learning and curiosity are two sides of the same coin). They are less likely to accept things at face value. They apply critical thinking to situations as a matter of course. Their brains are wired to be rewarded with a bigger dopamine hit when they learn something new.

Others rely more on what they believe to be true. They actively filter out information that may challenge those beliefs. They double down on what is known and defend themselves from the unknown. For them, curiosity is not an invitation, it’s a threat.

Part of this is a differing tolerance for something that neuroscientists call “prediction error“-- the difference between what we think will happen and what actually does happen. Noncurious people perceive predictive gaps as threats and respond accordingly, looking for something or someone to blame. They believe that it can’t be a mistaken belief that is to blame, it must be something else that caused the error. Curious people look at prediction errors as continually running scientific experiments, giving them a chance to discover the errors in their current mental models and update them based on new information.

Our appetite for curiosity has a huge impact on where we turn to be informed. The incurious will turn to information sources that won’t challenge their beliefs. These are people who get their news from either end of the political bias spectrum, either consistently liberal or consistently conservative. Given that, they can’t really be called information sources so much as opinion platforms. Curious people are more willing to be introduced to non-conforming information. In terms of media bias, you’ll find them consuming news from the middle of the pack.

Given the current state of the world, more curiosity is needed, but is becoming harder to find. When humans (or any animal, really) are threatened, we become less curious. This is a feature, not a bug. A curious brain takes a lot longer to make a decision than a non-curious one. It is the difference between thinking “fast” and “slow,”  in the words of psychologist and Nobel laureate Daniel Kahneman. But this feature evolved when threats to humans were usually immediate and potentially fatal. A slow brain is not of any benefit if you’re at risk of being torn apart by a pack of jackals. But today, our jackal encounters are usually of the metaphorical type, not the literal one. And that’s a threat of a very different kind.

Whatever the threat, our brain throttles back our appetite for curiosity. Even the habitually curious develop defense mechanisms in an environment of consistently bad news. We seek solace in the trivial and avoid the consequential. We start saving cognitive bandwidth for whatever impending doom we may be facing. We seek media that affirms our beliefs rather than challenges them.

This is unfortunate, because the threats we face today could use a little more curiosity.