Shortly after she lay down to go to sleep,Ellen was starting to drift off to a peaceful slumber.Out of nowhere,she experienced a sudden muscular spasm that pulled her right back to wakefulness.The technical name of this muscular contraction is a __________.
A) hypnagogic jerk
B) REM clench
C) sleep spindle
D) beta block

Question

Quizplus · Accepted Answer

A hypnagogic jerk is a sudden muscular contraction that occurs during the transition from wakefulness to sleep. It is also known as a sleep start or a hypnic jerk. REM clench, sleep spindle, and beta block are not terms commonly used to describe this phenomenon.

Shortly After She Lay Down to Go to Sleep,Ellen Was