Fig. 2. Electroencephalogram (EEG) during anesthetic induction in a patient without epileptiform activity. Six minutes of electroencephalography (EEG) are presented in three 2-min sections. EEG is recorded with the Fp1–left mastoid electrode pair. Electromyogram and movement artifacts are followed by eye blinks, slow-rolling eye movement, and fast activity. The rhythmic slow activity, followed by mixed frequency slow activity, lasts until the end of the trial. B = eye blinks; EMG = electromyographic activity; F = fast EEG activity; M = movement artifact; SR = slow-rolling eye movement.