A brain-monitoring device may one day take the guesswork out of anesthesia

The automated device pairing brain activity and dosing kept two macaques sedated for 125 minutes

An illustration of a brain superimposed by brain waves from an EEG

Combining brain-monitoring equipment with drug-dosing algorithms could one day help anesthesiologists give patients just the right dose of anesthetic to stay sedated during medical procedures.

KATERYNA KON/SCIENCE PHOTO LIBRARY/Getty Images

A new brain-monitoring device aims to be the Goldilocks of anesthesia delivery, dispensing drugs in just the right dose.