what do they reveal about perceptual processes?
” Perception 28 ECVP Abstract Supplement Mirror-image distractors and visual search: what do they reveal about perceptual processes? E Thorpe Davis, T Shikano, S A Peterson, R Keyes, C E Shook, J Dart Perceptual processing of symmetric objects and features can occur quickly and effortlessly, especially for mirror-image symmetry. But, sometimes mirror-image symmetry can hurt rather than help. For instance, visual-search performance may be worse when distractors are mirror-images of the target than when they are not. Specifically, we investigated how mirror-image distractors affected (i) target-distractor discriminability, (ii) attention sharing, (iii) accuracy of target detection, (iv) confusions about spatial location of the target, and (v) whether noise or some other explanation could explain the set-size effects. We determined accuracy of target detection and localisation performance both when a Landolt C target was embedded among backward Cs (mirror-image condition) and when the tar
