Test: MCAT Social and Behavioral Sciences

1.

Which of the following is characteristic of stage 1 of non-rapid eye movement sleep (NREM sleep)?

Electroencephalogram (EEG) activity is increased, with the appearance of spikes called K complexes.

Electroencephalogram records delta activity.

Deep sleep occurs.

Eye movements are slow and electroencephalogram (EEG) shows low brain wave activity.

Eye movement ceases, wave frequency is reduced, and wave amplitude is increased.

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