About us, using only the ten hundred most used words
When something happens to you, you form a memory of that thing, and you store a memory of it inside your brain. Later, you can think about this memory again, and it is almost like you are going back to the time that thing happened. A man once wrote a long story where he ate and smelled a nice little piece of food, and it made him feel like he was going back a long, long time, to when he was a child. I haven't finished reading the story, because I kept falling asleep while I was reading it. But that was my fault, not the man's fault; I kept reading the story at bed time, instead of during the day. I read the part about the nice little piece of food though. I liked that part.
We want to know what happens in your brain when you think about memories of things that happened a long time ago, or a little while ago. There are a lot of memories inside your brain! Somehow your brain can find the memory you want to think about, even though there are lots of other memories that sometimes get in the way.
If you come visit us at a room in our college, we can study your memory. We give you some money, and you play a computer game where you try to remember things. When you have a thought, tiny things move around in your brain really quickly. We put a thing on your head that gets pushed around when these tiny things are moving around. You can't see it getting pushed around, but we have a computer that can see it. Then we use the computer to figure out what is happening inside your brain when you try to remember things. Or we can take you to a room in a hospital, and you can play a computer game inside a loud box that gives a picture of your brain to another computer. Then we try to figure out what kind of memory you are thinking about, by looking at these brain pictures.
We also use computers to make a pretend brain, and we make it so the pretend brain can remember and forget things. Then we try to figure out how the pretend brain isn't the same as a real brain. Does it remember too many things? Does it remember the things in the wrong order? We change the pretend brain a little bit at a time, to make it more and more like a real brain.
Some people can't remember things that happened to them, because they hurt their brain. Some people are scared that one day they won't be able to remember things. Some people want to know how best to learn a lot of things, really quickly. We hope one day our pretend brain can help us understand these things, and help people.