Multitaper Spectrogram Compare with Traditional Hypnogram (IMAGE)

Massachusetts General Hospital

Multitaper Spectrogram Compare with Traditional Hypnogram

Caption

Current sleep staging practice consists of visual analysis of 30-second segments of raw EEG wave forms (top) and subjective categorization into sleep stages to create a hypnogram (middle), which is used for many clinical analyses. The multitaper spectrogram (bottom) provides an objective, high-resolution characterization of EEG oscillations during sleep, reflecting both their frequency and power.

Credit

Michael Prerau, PhD

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