Derec Bownds: quotes from Thomas Metzinger, The Ego Tunnel:
The conscious brain is a biological machine - a reality engine - that purports to tell us what exists and what doesn’t. It is unsettling to discover that there are no colors out there in front of your eyes...they are models created by your brain...The world is not inhabited by colored objects at all..there is just an ocean of electromagnetic radiation, a wild and raging mixture of different wavelengths. Most of them are invisible to you and can never become part of your conscious model of reality. ...the visual system is your brain is drilling a tunnel through this inconceivably rich physical environment and in the process is painting the tunnel walls in various shades of color. Phenomenal color. Appearance. For your conscious eyes only...cognitive neuroscience has shown that the process of conscious experience is just an idiosyncratic path through a physical reality so unimaginably complex and rich in information that it will always be hard to grasp just how reduced our subjective experience is.
And check out the video below. Stare at the dot in the center of the screen without breaking your gaze until the photograph appears. The photo is in black and white, but you will see a color image.
Video via: Of Two Minds