Back to topics

Why can reading in a car make motion feel wrong?

A book appears steady in your hands while the car turns, brakes, and accelerates. Your senses are receiving different clues about motion. Sensory-conflict theory offers an explanation for why that mismatch can feel unpleasant, while leaving room for differences between people and situations.

3–7 min

Questions you could explore

  • What motion information comes from the eyes, and what comes from the inner ear?
  • Why might seeing the outside world change the information available?

Start reading

Ready to try your ideas aloud?

Your topic carries over. Record up to 2½ minutes, depending on your plan.

Health and the body

How does daylight set the body’s clock?

Feeling sleepy at night involves more than counting the hours since you woke up. Internal daily rhythms respond to outside cues, with light helping coordinate the body's sense of time.

3–5 min
Health and the body

How does a vaccine give the immune system a memory?

The immune system can respond differently to something it has encountered before. Vaccines make use of recognition and memory, though different vaccine types introduce the relevant information in different ways.

4–5 min
Health and the body

Why won’t an antibiotic treat a viral cold?

The word infection covers illnesses caused by very different organisms. An antibiotic that helps against certain bacteria has no matching target in the viruses that cause a cold.

2–3 min
Why can reading in a car make motion feel wrong? | Speech Topic | speaking.app