In the past few years digital technology has brought EEG and evoked po
tentials into emergency rooms, intensive care units and operating room
s with a variety of automatic data trending. Networking of these syste
ms makes access to clinical neurophysiologists nearly immediate. Digit
al EEG has made montage reformatting and quantitation of parameters re
adily available. Increased spatial and temporal resolution is availabl
e with routine EEG, and combined topographic and frequency mapping of
a given potential, spike or seizure focus is possible. In the future,
these and other features such as dipole mapping and cognitive EP analy
sis will be available on a routine basis. (C) 1998 Elsevier Science Ir
eland Ltd.