Images capture the moment a brain drops unconscious

For the first time researchers have monitored the brain as it drops unconscious.

The new imaging technique, called Functional Electrical Impedance Tomography by Evoke Response (fEITER), detects the waxing and waning of electrical activity in a patient's brain moments after a doctors administer an anaesthetic injection.

The images capture over a minute are sped-up and show the different regions of the 'talking' to each other, researchers reported at the European Anaesthesiology Congress in Amsterdam.