194: Iris Sphincters

Brain Junk
Brain Junk
194: Iris Sphincters
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You might think you’re special because you can flex your nostrils or flap your ears–but it turns out that there is a person out there who can voluntarily move their pupillary sphincters. What the heck are those? Listen to this one, it’s worth it.

https://www.youtube.com/watch?v=DW2iwEshWME

Want to know more? Check out the scientific paper!

Amy’s Links: 
https://www.livescience.com/man-can-control-pupil-dilation.html
https://www.sciencedirect.com/science/article/pii/S0167876021008448?via%3Dihub

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