A recent study published in the journal Neuroimage: Clinical has found some patients in a persistent vegetative state (PVS) are aware of the world around them — and some are “not just aware, but paying attention.”
Scientists at the Medical Research Council Cognition and Brain Sciences Unit and the University of Cambridge published their research last month. In the study, researchers examined 21 PVS patients, asking the patients to listen and mentally respond to a series of words. Scientists used electroencephalography to measure electrical activity in the brain, and compared brain activity in the patients with brain activity in healthy volunteers who were asked the same questions.
Researchers at Cambridge write,