Stare at the black dot for about 30 seconds...
You should see the grey haze vanishing.
Your eyes actually only see what they are looking
at and the rest in your peripheral vision is created
from short term vision memory. Of course, the
brain would be triggered by movement. In this
example, the brain starts to creat white around the
black dot because white is the abvious color or
pattern "seen" nearby.
