How do brain-computer interfaces restore motor function?

Imagine your brain is a remote control, and your body is the TV, when you want to move, you press buttons on that remote. Sometimes, the signals from the brain get lost along the way, like when the TV doesn’t work even though the remote is working fine.

Brain-computer interfaces act like a bridge between your brain and your muscles, helping you move again when those signals are missing or broken.

Your brain sends messages to your muscles through nerves, like sending text messages. If those nerves don’t work anymore, maybe because of an injury or illness, the messages can't reach the muscles. That's why someone might not be able to move their hand or walk.

A brain-computer interface reads the signals from your brain, even if they're only partly there, and sends them to a computer or a special device attached to your body. This device then helps your muscles move, like a helper who takes the message from your brain and tells your arm what to do.

It's like having a friend who hears you whisper what you want to say and shouts it out so everyone can hear, helping you communicate even when you're not sure your voice will be loud enough. Imagine your brain is a remote control, and your body is the TV, when you want to move, you press buttons on that remote. Sometimes, the signals from the brain get lost along the way, like when the TV doesn’t work even though the remote is working fine.

Brain-computer interfaces act like a bridge between your brain and your muscles, helping you move again when those signals are missing or broken.