Quantitative EEG
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Quantitative EEG[edit | edit source]
Quantitative EEG (QEEG) is a time-compressed display summarizing several hours of raw EEG data in a single snapshot. It involves analyzing different components of the raw digital EEG signals such as power distribution across different frequencies, amplitude, rhythmicity and asymmetry. This data is then plotted into a visually simplified form. A typical qEEG display can have several different trends with each trend displaying a specific aspect of the electrographic data. For example, amplitude-integrated EEG or aEEG displays changes in amplitude against time. These trends will be further explained in the subsequent sections.
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