Figure 4From: Technical and clinical analysis of microEEG: a miniature wireless EEG device designed to record high-quality EEG in the emergency department Examples of the power spectral density of microEEG and standard EEG signals recorded in parallel. The curves were smoothed except near 60 Hz. The shaded zone represents the 95% confidence range for the microEEG signal (the 95% confidence range for the standard EEG was essentially the same and is not shown). Filters: 0.50-70-Hz bandpass.Back to article page