Occipital Lobe · Structure
Area V4
The color laboratory.
V4 takes wavelength information and turns it into stable color, so a white shirt looks white in candlelight and in sunlight. This trick is called color constancy.
What it does
- Computing color constancy
- Detecting shape from color boundaries
- Feeding object recognition streams
In the real world
The dress that broke the internet
Whether you saw blue-black or white-gold came down to how your V4 guessed the lighting — a viral demonstration of a real neural computation.