Final answer:
A person with narcolepsy is likely to experience symptoms such as falling asleep without warning during alert activities during the day and temporary paralysis of the voluntary muscles while awakening from deep sleep.
Step-by-step explanation:
A person with narcolepsy is likely to experience symptoms such as falling asleep without warning during alert activities during the day and temporary paralysis of the voluntary muscles while awakening from deep sleep. This is often accompanied by cataplexy, which is a lack of muscle tone or muscle weakness. Narcolepsy can also involve vivid, dream-like hallucinations during episodes of falling asleep.