Color perception between physics, neurobiology and sensitivity

"I see something you can't see, and that's green!" This saying from an old child's play is based on the assumption that there is a common perception of colors. Colours would therefore be an objective reality independent of the viewer. Or is color just an illusion created by our brain?

Are colors real or just a deception of our brain? © agsandrew / thinkstock

Is a tree really green - even if nobody sees it? And when we see colors, do we share this experience with others, or does each individual perceive something different? Mankind has been preoccupied with these questions for thousands of years - and science has given and gives different answers to them.

Stay tuned for my upcoming article series starting next Monday

Content:

• Part 1: All illusion?
  The debate about the reality of our perception

• Part 2: From the waves to the stimulus
  Physics and color perception

• Part3: From the stimulus to the subjective sensation
  What does neurobiology say?

• Part 4: Why the tree is green after all
  The objectivity of colors

• Part 5: When green does not seem to be equal green
  The relationality of colors

• Part 6: Only the interaction makes it
  Color emerges from the relationship between living beings and the environment