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Outside/In

Your brain on GPS

Outside/In

NHPR

Society & Culture, Documentary, Natural Sciences, Nature, Science

4.71.5K Ratings

🗓️ 20 August 2025

⏱️ 28 minutes

🧾️ Download transcript

Summary

GPS is essential these days. We use it for everything, from a hunter figuring out where the heck they are in the backcountry, to a delivery truck finding a grocery store, to keeping clocks in sync. But our reliance on GPS may also be changing our brains. Old school navigation strengthens the hippocampus, and multiple studies suggest that our new reliance on satellite navigation may put us at higher risk for conditions like dementia. In this episode (first released in 2024), we map out how GPS took over our world—from Sputnik’s Doppler effect to the airplane crash that led to its widespread adoption—and share everyday stories of getting lost and found again. Featuring Dana Goward, M.R. O’Connor, Christina Phillips, Michelle Liu, Julia Furukawa, and Taylor Quimby. Produced by Nate Hegyi. For full credits and transcript, visit outsideinradio.org.  LINKS In 2023, Google Maps rerouted dozens of drivers in Los Angeles down a dirt road to the middle of nowhere to avoid a dust storm.  Maura O’Connor traveled from rural Alaska to the Australian bush to better understand how people navigate without GPS—and sometimes even maps.  Here’s the peer-reviewed study, published in the journal Nature, that found that young people who relied on GPS for daily driving had poorer spatial memories.  Another study out of Japan found that people who use smartphone apps like Google Maps to get around had a tougher time retracing their steps or remembering how they got to a place compared to people who use paper maps or landmarks. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

Click on a timestamp to play from that location

0:00.0

Hey, you're listening to Outside In a show where curiosity and the natural world collide.

0:05.5

I'm Nate Hedgy.

0:07.3

The year was 2007, and Christina Phillips was on a road trip with her mom.

0:12.7

They were checking out colleges around Washington, D.C., driving a rental car.

0:16.8

It was a Volkswagen bug, then it was lime green.

0:21.3

Christina, by the way, is a senior producer for our sister podcast, Civics 101.

0:25.7

And this was before smartphones were really popular.

0:29.0

So Christina's mom was using a portable GPS device.

0:32.1

We were relying entirely on this GPS because neither of us really knew how to read maps.

0:37.3

I learned later, like, I'm never going to survive in an apocalypse if I can't read a map well. So they plug in the address and start following the directions to another school, a few hours outside the city. She's, like, entranced by the GPS, and I keep being like, Mom, you have to look at the road. like she's's following the GPS instead of the road because she's just like, my car is moving on this map.

1:03.3

And we go under a bridge and the GPS goes recalculating, turn left.

1:09.3

And my mom, like, puts her left blinker on as we're in a tunnel.

1:12.8

And I was like, you cannot turn left.

1:14.4

We are in a tunnel.

1:15.2

And she was like, oh, whoops, I was watching the GPS again.

1:21.2

Eventually, we get out of D.C.

1:22.9

And we're driving through the countryside.

1:25.0

And the GPS just randomly, as we're on the like a country highway

1:30.4

goes take the exit so we're like okay we'll take the exit we have no idea where we are we take

1:37.2

the exit and the GPS puts us on a dirt road that is parallel to the highway I, Mom, I think we can just get back on the highway.

1:46.3

And she's like, no, no, no.

1:47.4

If we get off this road, I'll never find our way back.

...

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