Superconducting Quantum Magnetometers for Brain Investigations.

Summary: Imagine being able to read the tiny electrical whispers of the human brain without ever touching it! This review looks at special, super-cold sensors called SQUIDs. These quantum sensors are incredibly sensitive and can pick up the faintest magnetic signals made by our brain cells. Doctors use them in a machine called MEG (magnetoencephalography) to safely map out brain activity. We'll explore how these amazing sensors work, how they are built to block out background noise, and how they compare to newer laser-based technologies. Finally, we'll see how hospitals use these powerful tools to help diagnose and treat patients with brain conditions.