Brain activity patterns during anesthesia and surgery depth

Researchers want to understand whether certain brain activity patterns that appear when anesthesia begins are connected to how deep your anesthesia stays during surgery. You'll wear a standard forehead sensor (called a Bispectral Index monitor) that measures your brain activity—something already commonly used during surgery. The study simply records the information collected during your regular anesthesia monitoring to answer this question.

Doctors want to know if they can predict how well anesthesia will work during surgery by watching for specific brain patterns when the anesthesia begins. This could help them give you the right amount of medication to keep you safely asleep and comfortable during your operation.