Click on any tile of the grid. This will reveal a small tile of a larger image.
If you perceived any delay in the tile being revealed, in other words 'it didn't feel like it appeared instantly' then click on this tile again. The tile will be coloured green, indicating that you have decided there was a perceivable delay.
If you made a mistake by clicking it, you can change your mind by clicking again.
Repeat this on all other cells to reveal the complete image.
View the statistics page to see experiment results.