Question 1
In which stage of sleep do the slowest brain waves occur?
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stage 1◦
stage 2◦
REM◦
stage 4Question 2
Iris has been asleep for less than an hour. Her parents are surprised when she walks into the living room, and they tell her to go back to sleep. The next day Iris does not remember getting up after she went to bed. From this description, what did Iris experience?
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a night terror◦
somnambulism◦
REM sleep behaviour disorder◦
a nightmare