The study examined the effect of “visual crowding,” when objects around you block accurate perception. Scientists have found that the location of visual pollution affects the efficiency of information transfer between neurons in the primary visual cortex. Although the location did not change the order in which data was processed, it significantly reduced the quality of information transfer.
To conduct the study, researchers trained macaque monkeys to fix their gaze on the center of the screen while visual stimuli appeared at the edges of their visual field. By recording neural activity, they found that different areas of the primary visual cortex responded differently to visual noise.
Source: Ferra

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