Abstract
THE following simple experiment shows th above influence in a very conclusive manner. Let a piece black cardboard eight inches square be taken and place this on a wall paper with a coloured pattern. The light in the room should not be too bright, but the experiment can be done easily in an ordinary room with the daylight of the present time. The black cardboard should be viewed with one eye at a distance six feet, the eye being kept as immovable as possible. It will then be noticed that portions of the colours of the wall paper will appear to detach themselves from the wall paper and move with a slow spiral motion into the black area. This will go on until the whole black area has completely disappeared, the surface being covered with a mixture of colours similar to those on the wall paper.
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EDRIDGE-GREEN, F. Influence of the Para-Foveal Regions on the Foveal Region of the Retina. Nature 124, 877 (1929). https://doi.org/10.1038/124877b0
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DOI: https://doi.org/10.1038/124877b0
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