Two cases are reported in which reversible deep coma subsequent to high voltage electrical injury occurred in association with alpha frequencies in the EEG. The EEG pattern differs from the alpha ...

Coma scales have been developed for evaluating ... For example, the hallmark of the EEG pattern of metabolic encephalopathy is the presence of an excessive amount of slow-wave activities.

One in five people in a coma may be “locked in”, meaning they ... can be identified using MRI scans or electroencephalograms ...