Rapid Eye Movement (REM) sleep is often called ‘Paradoxical Sleep’ because:
AThe brain is highly active while the voluntary muscles are essentially paralyzed
BThe body is hyperactive while brain waves are flat
CHeart rate drops to zero during intense dreaming
DThe person experiences waking hallucinations while conscious
Explanation
During REM sleep, brain activity resembles waking states, yet postural muscle tone is suppressed (atonia).
Exam Relevance
- Topic: Consciousness
- Subtopic: Sleep & Dreams
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