Brain zaps and naps: can sound waves speed up anesthesia recovery?

This study looked at how the brain processes what we see while under anesthesia. Researchers used brain scans (fMRI) to measure brain activity in 36 healthy adults during sedation with propofol. They also tested if using ultrasound on the brain could help people wake up faster. The goal was to better understand how anesthesia affects thinking and whether ultrasound might speed up recovery.