Brains On! Do We All See the Same Colors?

What if the color that you call blue and the color I call blue don’t look the same at all?

When our brains see color, we’re really just seeing waves of light. Sure, we may be seeing the same waves when we look at the color blue, but do we know if our brains are interpreting those waves in the same way? Maybe my blue is your orange!

We talk to Dr. Robert Marc from the University of Utah about this mystery and go ringside to find out how rods and cones help us see.

• Want to learn more about how animal eyes work? Listen to our episode about cats!

• And if you want to know more about the electromagnetic spectrum, which includes the light and colors that we can see, check out our episode about x-rays!


Brains On! is an award-winning audio show for kids and families from American Public Media.

Light & Colors
K-6, Middle School

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