A child wakes suddenly after sleeping for a couple of hours, is terrified and shows significant autonomic activity, such as a racing heart rate and dilated pupils. When questioned, the child cannot remember what frightened her. It is likely the child has just woken from _______ sleep.
A) stage 1
B) stage 2
C) stage 3
D) REM

Question

Quizplus · Accepted Answer

This description is characteristic of a night terror, which typically occurs during stage 3 of non-REM sleep. Unlike nightmares, which occur during REM sleep, night terrors are often not remembered.

A Child Wakes Suddenly After Sleeping for a Couple of Hours