A quiz on the human visual system

Adrian F. Clark

  1. Why are the decks of ships usually illuminated using red light at night?

  2. Blue cones are much less responsive than red- and green-sensitive ones. How does the brain handle this?

  3. Signals from the eye travel via the optic nerve to which of the following?

  4. What type of cell is responsible for vision in low-light conditions?

  5. Where does the "where" or "how" pathway run?

  6. Roughly, what is the range of wavelengths of visible light?

  7. What is "continuity" in the context of visual processing?

  8. What type of cell is responsible for colour vision?

  9. To which of the following do the cells in V1 respond to?

  10. What is the `fovea?'