Magnetoencephalography

Magnetoencephalography (MEG) is a special machine that helps doctors and scientists study the brain. It works by detecting tiny magnetic fields (like the ones made by your fridge magnets) that your brain gives off when it is working.

When you have a thought or do something, like move your hand, your brain sends tiny electrical signals to different parts of your body. These electrical signals create magnetic fields, which can be detected by the MEG machine.

The MEG machine looks like a big, round helmet that you wear over your head. The helmet has very sensitive sensors that can pick up the magnetic fields your brain is making. While you're wearing the helmet, you'll be asked to focus on different tasks so that researchers can see which part of your brain is active.

MEG is very helpful because it can show researchers which parts of your brain are working when you do different things. This can help doctors diagnose problems like epilepsy or tumors, and scientists can use it to learn how the brain works and how to make medicines that treat brain problems.

So, in short, magnetoencephalography is a machine that helps us see how the brain is working by detecting tiny magnetic fields it gives off, and allows us to understand how different parts of the brain work.