Low amplitude, mixed frequency activity:
An EEG pattern consisting of low amplitude, predominantly 4-7 Hz activity.
An EEG pattern consisting of low amplitude, predominantly 4-7 Hz activity.
Low chin EMG tone:
Baseline EMG activity in the chin derivation no higher than in any other sleep stage and usually at the lowest level of the entire recording.
Baseline EMG activity in the chin derivation no higher than in any other sleep stage and usually at the lowest level of the entire recording.
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