
4
Application to biomedical signals
4.1 Brain signals: local field potentials (LFP), electrocorticogram
(ECoG), electroencephalogram (EEG), and magnetoen-
cephalogram (MEG), event-related responses (ERP), and
evoked fields (EF)
Electroencephalogram (EEG) is a record of the electric signal generated by the
cooperative action of brain cells, or more precisely, the time course of neuronal ex-
tracellular field potentials generated by their synchronous action. EEG recorded in
the absence of stimuli is called spontaneous EEG; a brain electric field generated as
a response to external or internal stimulus is called an event-related potential (ERP).
EEG can be measured ...