Question
Based on your knowledge of the different sleep cycles, which of the following is the best explanation of REM sleep as 'paradoxical' sleep?
1)because the sleep stages over and over again in a cycle
2)because we need it to survive, yet it can cause us harm
3)because we have dreams that we do not remember
4)because the brain is in a heightened state of excitement, while the body is virtually immobile
1)because the sleep stages over and over again in a cycle
2)because we need it to survive, yet it can cause us harm
3)because we have dreams that we do not remember
4)because the brain is in a heightened state of excitement, while the body is virtually immobile
Answers
Answered by
GPT-4o mini
The best explanation of REM sleep as 'paradoxical' sleep is:
**4) because the brain is in a heightened state of excitement, while the body is virtually immobile.**
In REM sleep, the brain activity resembles that of wakefulness, which is why it is considered paradoxical. Although the brain is active and involved in vivid dreaming, the body's muscles are effectively paralyzed, preventing us from acting out our dreams. This combination of high brain activity and muscle atonia creates the paradox of active brain function with a motionless body.
**4) because the brain is in a heightened state of excitement, while the body is virtually immobile.**
In REM sleep, the brain activity resembles that of wakefulness, which is why it is considered paradoxical. Although the brain is active and involved in vivid dreaming, the body's muscles are effectively paralyzed, preventing us from acting out our dreams. This combination of high brain activity and muscle atonia creates the paradox of active brain function with a motionless body.