EEGprognosisstatus epilepticusIn a series of 27 electroencephalograms from 22 patients, well-defined brief attenuations occurred interspersed among the background activity. These episodic low amplitude events (ELAEs) typically lasted 0.54 seconds. They were hemispheric or bisynchronous and occurred in ...
Electroconvulsive therapy (ECT) at conventional current amplitudes (800–900 mA) is highly effective but carries the risk of cognitive side effects. Lowering and individualizing the current amplitude may reduce side effects by virtue of a less intense
A type of pulse in which the amplitude or intensity of the ultrasound wave gradually increases or decreases over time, rather than being constant throughout the pulse. Somatosensory evoked potential A type of evoked potential that measures the electrical responses of the somatosensory cortices and spi...
3) the EEG can vary and this can yield prognostic information; 4) all 5 patients with seizures died; 5) episodic low-amplitude events, essentially a burst-suppression pattern, did not have the sinister prognosis that had been found... C Benson,GB Young - 《Neurology》 被引量: 9发表: 20...
Somatosensory evoked EEG and magnetoencephalographic (MEG) responses comprise a brief burst of low-amplitude, high-frequency (approximately 600 Hz) spikeli... G Curio - 《J Clinical Neurophysiology》 被引量: 207发表: 2000年 Finding the active genes in deep RNA-seq gene expression studies Early...
Steady-States Visually Evoked Potentials (SSVEP) refer to the sustained rhythmic activity observed in surface electroencephalography (EEG) in response to the presentation of repetitive visual stimuli (RVS). Due to their robustness and rapid onset, SSVEP
The animal's behavior was classified as either NREM sleep, REM sleep or wak- ing based on previously defined criteria [35]. Briefly, NREM sleep is characterized by large-amplitude EEG slow waves, high power density values in the delta fre- quency band (0.5 – 4.0 Hz), and lack of ...
0 = Oscillator clock output disabled (default) 1 = Oscillator clock output enabled Must be set to '0' INT_TEST: Test signal selection This bit determines whether the test signal is turned on or off. 0 = Off (default) 1 = On; amplitude = ±(VREFP – VREFN) / 2400 TEST_FREQ: Test...
Commonly monitored biopotential signals are EEG, ECG, and EMG. Figure 1 shows the characteristics of these signals, and it can be seen that they have a very low signal amplitude and operate at extremely low frequencies (<150 Hz). This is a major reason their performance is limited by the ...
The chop frequency shows itself at the output of the WCT amplifiers as a small square-wave riding on dc. The amplitude of the square-wave is the offset of the amplifier and is typically 5mVPP. This artifact as a result of the chopping function is out-of-band and thus does not ...