The Role of the Nervous System
Our nervous system is like a superhighway of communication in our body. The nervous system is made up of nerves that carry messages between our body and our brain. When someone loses a limb, like an arm or leg, their nervous system still remembers that limb, and the brain expects to get signals from it. But since the limb is gone, the brain gets confused. It keeps sending signals to the missing limb, and this mix-up can cause phantom limb sensations and pain.
The nerves in the remaining part of the body and the brain adjust to the missing limb. However, the remapping doesn’t always go smoothly, and the brain still thinks the limb is there. So when the brain sends signals to the missing limb, it can create sensations or pain even though the limb is no longer there. Understanding this connection between the nervous system and phantom limb pain is an important puzzle that scientists are working on to find better ways to help people who experience this phenomenon.