ELI5: Explain Like I'm 5

Functional magnetic resonance spectroscopy of the brain

Functional magnetic resonance spectroscopy of the brain is like a special camera that takes pictures of your brain when you think or do things.

When you do stuff, like think about something or move your body, your brain cells need to work really hard. As they work, they use up energy and the brain cells have to get more energy from your blood.

Functional magnetic resonance spectroscopy (fMRI) works by looking at the blood in your brain. The camera takes lots of pictures of your head while you do things. It can see how much blood is flowing to different parts of your brain at different times.

Why is this important? Different parts of your brain control different things. For example, one part controls your ability to see and another part controls your ability to move. When you do something like look at a picture or move your arm, specific parts of your brain get really active.

The fMRI can show which part of the brain is working the most during a specific task. This helps scientists and doctors better understand how the brain works, and can help explain why certain diseases or injuries affect different parts of the brain differently. It can also help doctors figure out which parts of the brain to treat if someone is sick or hurt.

So, in short, fMRI is like a special camera that takes pictures of your brain to help scientists and doctors understand how it works and how to help people who are sick or hurt.