Muscle artifact on polysomnography

This figure highlights typical characteristics of muscle artifact on PSG (dashed boxes): high amplitude and high frequency signals and EMG muscle artifacts superimposed upon EEG activity.

PSG: polysomnography; EMG: electromyography; EEG: electroencephalography.

Illustrated by Seulah Rebecca Choi. Reproduced with permission.

Graphic 104826 Version 1.0

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