Dr. Poppy Crum

I will tell you, I will walk into hotel rooms and immediately if I hear something, I've moved.

There is no such thing as perfect pitch.

There's absolute pitch.

And so I think only because the idea of, so like, ah, that would be A equal 440 hertz, right?

But that's a standard that we use in modern time.

And the different, what A is has actually changed throughout our lives with aesthetic, with what people like, with the tools we use to create music.

And in the Baroque era, A was 415 hertz.

And in any case, so that's why it's absolute because, you know, guess what?

As my basilar membrane gets more rigid as I might age or my temporal processing slows down, my brain's going to still think I'm in, you know, I'm singing 440 hertz, but it might not be.

We aren't developing new resources.

We've got the same cells that are, or I mean, there's neurogenesis, of course, but it's how those are getting allocated.

And, you know, just one quick comment from what we said before when we talk about the homunculus.

The homunculus is an example of a map in the brain, a cortical map.

And maps are important in the brain because they, you know,

allow cells that need to interact to give us specificity, to make us fast, to have, you know, tight reaction times and things, you know, because you've got shorter distance and, you know, things that belong together.

Also, there's a lot of motility in terms of, you know, what those cells respond to potentially dependent on our input.

So the homunculus might be one map, but there are maps all over our brain.

And those maps still have a lot of cross input.

So what you're talking about is, are you having areas where we didn't use to allocate and differentiate

in the specificity of what those cells were doing that are now quite related to the different ways my brain is having to interpret a text message and the subtlety and the nuance of that that actually now I'm