Brain in sentence

4290 examples of Brain in a sentence

First, you find and label a memory in the brain, and then you activate it with a switch.

So, turns out finding a memory in the brain isn't all that easy.

And also, there's way more cells in your brain than the number of straws in a typical haystack.

But luckily, we got help from the brain itself.

It turned out that all we need to do is basically to let the brain form a memory, and then the brain will tell us which cells are involved in that particular memory.

SR: So what was going on in my brain while I was recalling the memory of an ex?

If you were to just completely ignore human ethics for a second and slice up my brain right now, you would see that there was an amazing number of brain regions that were active while recalling that memory.

Now one brain region that would be robustly active in particular is called the hippocampus, which for decades has been implicated in processing the kinds of memories that we hold near and dear, which also makes it an ideal target to go into and to try and find and maybe reactivate a memory.

XL: So we clipped part of this sensor, and attached that to a switch to control the cells, and we packed this switch into an engineered virus and injected that into the brain of the mice.

The sea of blue that you see here are densely packed brain cells, but the green brain cells, the green brain cells are the ones that are holding on to a specific fear memory.

It should act at the speed of the brain, in milliseconds.

SR: So what do you think, Xu? Could we use, let's say, pharmacological drugs to activate or inactivate brain cells?

So Steve, how about let's zap the brain with electricity?

SR: So electricity is pretty fast, but we probably wouldn't be able to target it to just the specific cells that hold onto a memory, and we'd probably fry the brain.

So it looks like, hmm, indeed we need to find a better way to impact the brain at the speed of light.

Now to do that, first we need to trick brain cells to respond to laser beams.

We are trying to shoot lasers into the brain.

Optogenetics gave us this light switch that we can use to turn brain cells on or off, and the name of that switch is channelrhodopsin, seen here as these green dots attached to this brain cell.

You can think of channelrhodopsin as a sort of light-sensitive switch that can be artificially installed in brain cells so that now we can use that switch to activate or inactivate the brain cell simply by clicking it, and in this case we click it on with pulses of light.

XL: So we attach this light-sensitive switch of channelrhodopsin to the sensor we've been talking about and inject this into the brain.

But is there a possibility that we can actually get inside the brain and edit this movie clip so that we can make it different from the original?

Rather than finding a fear memory in the brain, we can start by taking our animals, and let's say we put them in a blue box like this blue box here and we find the brain cells that represent that blue box and we trick them to respond to pulses of light exactly like we had said before.

We can shoot light into the brain to reactivate the memory of the blue box.

SR: For example, one group in our lab was able to find the brain cells that make up a fear memory and converted them into a pleasurable memory, just like that.

It's getting more oxygen to your brain.

It fine-tunes your brain's social instincts.

Well, oxytocin doesn't only act on your brain.

It's kind of like you have all these fancy sensors, and inside your brain is a little security guard.

But clearly, this is not enabled just by the brain of this animal, but also by his body, and it's a clear example, maybe the clearest example, of embodied intelligence, which is a kind of intelligence that all living organisms have.

You've got, of course, the human brain right next to healthcare, which you might expect, but also you've got video games, which is sort of adjacent, as those two spaces interface with each other.

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