Examlex
The Qin ruler Shi Huangdi, the first emperor of China, is remembered in art history for which of the following?
Slow Waves
Oscillations in the EEG (electroencephalogram) representing a state of deep sleep or unconsciousness.
Electroencephalograph (EEG)
A device used to record the electrical activity of the brain, often used in medical and research settings.
Stage 4 Sleep
The deepest phase of sleep, characterized by slow brain waves, known as delta waves, associated with deep sleep and physical recovery.
Awake
describes the state of being conscious and aware of one's surroundings, as opposed to being asleep.
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