48-hour ambulatory EEG
admixed sharp waves
alpha activity
alpha waves
artifacts awake stage beta activity beta waves
bilateral spike and wave complexes bilaterally synchronous and symmetrical bipolar and monopolar montages bisynchronous burst suppression pattern bursts bursts of high amplitude
Cadwell EEG equipment cycles per second delta frequency driving response to photic stimulation drowsiness electrode artifacts enhanced beta activity flash frequencies frontocentral theta activity high-voltage waves intermittent rhythmic delta activity K complexes lateralizing abnormalities low amplitude waves cycling at (xx - xx Hz) where xx represents values (eg, 10-12 Hz) monomorphic normal sleep patterns parieto-occipital sharp waves phantom spike-and-wave bursts polymorphic posterior dominant waveforms postictal predominant theta rhythm psychomotor variant quasi-periodic fashion
rare sharp waves
reactive to eye opening REM sleep rhythmical temporal theta burst sleep spindles slow rolling eye movements spikes spindle coma spindling beta
stage II sleep symmetric posterior rhythm theta theta waves
vertex sharp transients well-organized, well-developed waves |