Medicine Cataplexy refers to: A Hallucinations at sleep onset (hypnagogic hallucinations) or upon awakening B Sudden weakness or loss of muscle tone without loss of consciousness, often elicited by emotion C Muscle paralysis upon awakening D Muscle paralysis after sleeping 💡 Explanation Cataplexy refers to: ✓ Correct Answer: B. Sudden weakness or loss of muscle tone without loss of consciousness, often elicited by emotion