This article provides evidence that spatial wrapping can be suppressed by inactive retinal peripheries; a process that can achieved by significant reduction against the contrast between the background and the spatial wrapping stimulus. Significant contrast reduction deactivates the retinal peripheries due to the following reasons; first, the center-surround antagonism in the retinal peripheries may not signal the brain in extremely low contrast conditions. Second, reduced contrast constricts

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... pupil which disallows the retinal peripheries from receiving sufficient light rays to signal the brain effectively.