Status epilepticus. Each seizure is marked by an abrupt rise of amplitude and increase of beta band activity plus the appearance of small amounts of scalp muscle activity. These peaks then reduce until the next seizure.
Reproduced with permission from "The cerebral function analysing monitor: initial clinical experience, application and further development", D E Maynard and J L Jenkinson, Anaesthesia, 1984, Volume 39, pages 678-690.Published by Blackwell Science. http://www.blackwell-science.com/ana
WARNING. Please lease take note that in some cases, in coma, you can get a similar appearance to the above amplitude plot from a scalp muscle response typically to a sound or a tactile stimulus. However, the unprocessed EEG trace will not show any seizure activity, just low- pass filtered muscle. Check if the subject has become decerebrate.
CFAM1 trace. The markers at the top of the amplitude/Hz trace indicate 1 minute
