As a part of a research,Natasha initially had difficulty falling asleep in the sleep lab,but finally drifted into sleep and was not awakened when a student researcher knocked a can of soda off the desk. The electroencephalograph (EEG)is displaying theta waves with occasional sleep spindles.The researchers feel confident that Natasha is:
A)about to wake up.
B)in stage 2 of the sleep cycle.
C)dreaming.
D)in REM sleep.

Question

As a part of a research,Natasha initially had difficulty falling asleep in the sleep lab,but finally drifted into sleep and was not awakened when a student researcher knocked a can of soda off the desk. The electroencephalograph (EEG)is displaying theta waves with occasional sleep spindles.The researchers feel confident that Natasha is:
A)about to wake up.
B)in stage 2 of the sleep cycle.
C)dreaming.
D)in REM sleep.

Quizplus · Accepted Answer

The theta waves with occasional sleep spindles indicate that Natasha is in stage 2 of the sleep cycle. This stage accounts for the majority of our sleep time and is characterized by a decrease in brain activity and slow, regular breathing. It is also common to experience sleep spindles, which are brief bursts of brain activity. Natasha's lack of response to the can of soda suggests that she is in a deep enough sleep to not be disturbed by external stimuli.

As a Part of a Research,Natasha Initially Had Difficulty Falling