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6. What are the two ways of mixing colours?

  • Additive and achromatopsia
  • Trichromacy and achromatopsia
  • Subtractive and additive
  • Subtractive and trichromacy

7. Achromatopsia:

  • Genetic condition, permanent night vision
  • True colour blindness
  • Three physiological features underlie our colour vision
  • A merging of the senses

8. Trichromacy:

  • Theory used to correct the problems with the Young-Helmholtz theory
  • Three physiological features underlie our colour vision
  • A merging of the senses
  • True colour blindness

9. What is the other name for the Young-Helmholtz theory?

  • Synaesthesia
  • Trichromacy
  • Achromatopsia
  • Opponent-process theory