Vasarely illusion: A sensory effect might be reduced by depth cuesстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Vasarely illusion is considered as a sensory illusion and a glowing illusory cross along the diagonals of the squares is explained as a result of lateral inhibition of ganglion cells at the retina. We constructed several variants of Vasarely’s pattern using depth cues, which might differentiate the squares perceptually in 3D space. There were occlusions, attached shadows and disparity cues. The cues were placed in display images in such a way that the brightness discrimination along the diagonals of the squares was not changed. We investigated the strength of the glowing illusory cross using a two-alternative forced-choice discrimination task. Ten naive human subjects were tested. The results showed that the strength of illusory cross was significantly weakened when the cues were brought in the scene. So, any cues starting up the process of scission might eliminate an illusory effect, induced by low-level sensory mechanisms.