Can a monitor 'See' pain in sleeping kids?

This study tested if a special monitor, which measures a 'nociception level' (NoL), works the same way in children as it does in adults. Researchers used small, controlled electrical stimulations on 30 children aged 5-12 who were under general anesthesia for elective surgery. The goal was to see if the monitor's readings changed in response to different levels of stimulation, which would help doctors better understand and manage pain during operations.