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The eccentricity effect is a visual phenomenon that affects visual search. As retinal eccentricity increases (i.e. the light of the image enters the eye at a larger angle and approaches peripheral vision), the observer is slower and less accurate to detect an item they are searching for.[1]
Visual search tends to be better (faster and more accurate) when the target is presented closest/more centrally to the fovea, and worsens when the target is further in the periphery of the retina.
This effect was first confirmed in research by Carrasco, Evert, Chang, and Katz in 1995,[1] and was replicated by Wolfe, O'Neill and Bennet in 1998.[2]
^ abCarrasco, M., Evert, D.L., Chang, I., & Katz, S.M. (1995). The eccentricity effect: Target eccentricity affects performance on conjunction searches. Perception & Psychophysics, 57(8), 1241-1261
^Cite error: The named reference Wolfe1998 was invoked but never defined (see the help page).
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