Seventy-year-old Mr. Gregory has a sleep disorder caused by a failure of the brain mechanisms that normally suppress voluntary actions during REM sleep, and he verbally and physically responds to an unfolding dream story. Upon awakening, he remembers what happens in the dream in vivid detail. Mr. Gregory suffers from:
A) sleep-related eating disorder.
B) sleepwalking disorder.
C) REM sleep behavior disorder.
D) obstructive sleep apnea.

Question

Quizplus · Accepted Answer

Mr. Gregory's symptoms suggest that he is experiencing REM sleep behavior disorder, which is characterized by the failure of the brain mechanisms that normally suppress voluntary actions during REM sleep. This can lead to vocalizations or physical movements during sleep that are associated with the content of the dream. Unlike sleepwalking disorder, which typically occurs during non-REM sleep, the behaviors associated with REM sleep behavior disorder occur during REM sleep. Sleep-related eating disorder and obstructive sleep apnea are not likely causes of Mr. Gregory's symptoms.

Seventy-Year-Old Mr