Dr. Terry Sejnowski

Transition states.

This is light, slow-wave sleep, yeah.

This is light, slow-wave sleep, yeah.

This is light, slow-wave sleep, yeah.

Oh, okay. So in the case of the... They're called sleep spindles. Mm-hmm. The waves last for about... a second or two, and they travel, like I say, in a circle around the cortex. And it's known that these spindles are important for consolidating experiences you've had during the day into your long-term memory storage. So it's a very important function.

Oh, okay. So in the case of the... They're called sleep spindles. Mm-hmm. The waves last for about... a second or two, and they travel, like I say, in a circle around the cortex. And it's known that these spindles are important for consolidating experiences you've had during the day into your long-term memory storage. So it's a very important function.

Oh, okay. So in the case of the... They're called sleep spindles. Mm-hmm. The waves last for about... a second or two, and they travel, like I say, in a circle around the cortex. And it's known that these spindles are important for consolidating experiences you've had during the day into your long-term memory storage. So it's a very important function.

And if you take out, see, it's the hippocampus that is replaying the experiences. It's a part of the brain. It's very important for long-term memory. If you don't have a hippocampus, you can't learn new things. That is to say, you can't remember what you did yesterday or, for that matter, even an hour earlier.

And if you take out, see, it's the hippocampus that is replaying the experiences. It's a part of the brain. It's very important for long-term memory. If you don't have a hippocampus, you can't learn new things. That is to say, you can't remember what you did yesterday or, for that matter, even an hour earlier.

And if you take out, see, it's the hippocampus that is replaying the experiences. It's a part of the brain. It's very important for long-term memory. If you don't have a hippocampus, you can't learn new things. That is to say, you can't remember what you did yesterday or, for that matter, even an hour earlier.

But the hippocampus plays back your experiences, causes the sleep spindles now to need that into the cortex. And it's important you do that right because you don't want to overwrite the existing knowledge you have. You just want to basically incorporate the new experience into your existing knowledge base in an efficient way that doesn't interfere with what you already know.

But the hippocampus plays back your experiences, causes the sleep spindles now to need that into the cortex. And it's important you do that right because you don't want to overwrite the existing knowledge you have. You just want to basically incorporate the new experience into your existing knowledge base in an efficient way that doesn't interfere with what you already know.

But the hippocampus plays back your experiences, causes the sleep spindles now to need that into the cortex. And it's important you do that right because you don't want to overwrite the existing knowledge you have. You just want to basically incorporate the new experience into your existing knowledge base in an efficient way that doesn't interfere with what you already know.

So that's an example of a very important function that these traveling ways have.

So that's an example of a very important function that these traveling ways have.

So that's an example of a very important function that these traveling ways have.

No, this is a fascinating literature, and it's all pointing in the same direction, which is that we always neglect to appreciate the importance of sleep. I mean, obviously, you're refreshed when you wake up, but there's a lot of things happening. It's not that your brain turns off.

No, this is a fascinating literature, and it's all pointing in the same direction, which is that we always neglect to appreciate the importance of sleep. I mean, obviously, you're refreshed when you wake up, but there's a lot of things happening. It's not that your brain turns off.

No, this is a fascinating literature, and it's all pointing in the same direction, which is that we always neglect to appreciate the importance of sleep. I mean, obviously, you're refreshed when you wake up, but there's a lot of things happening. It's not that your brain turns off.

It's that it goes into a completely different state, and memory consolidation is just one of those things that happens when you're fall asleep. And of course, there's dreams and so forth. We don't fully appreciate or understand exactly how all the different sleep stages work together. But exercises are particularly important part of getting the motor system tuned up.