A grid illusion is any kind of grid that deceives a person's vision. The two most common types of grid illusions are the Hermann grid illusion and the scintillating grid illusion.
... The effect of both optical illusions is often explained by a neural process called lateral inhibition ... For example, making the lines of the grid wavy rather than straight eliminates both the Hermann grid and scintillating grid illusions ... One alternative explanation is that the illusion is due to S1 type simple cells in the visual cortex ...
Famous quotes containing the word illusion:
“He brushed away the thunder, then the clouds,
Then the colossal illusion of heaven. Yet still
The sky was blue.”
—Wallace Stevens (18791955)