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Foulds, Olivia – International Association for Development of the Information Society, 2020
When too much visual stimuli is present, the phenomenon of clutter is known to degrade an individual's perception across a variety of domains, ranging from completing search tasks incorrectly, to decreasing reading speed when letters are too close together. However, research is lacking as to whether the negative effects of clutter impact learning…
Descriptors: Visual Perception, Visual Aids, Color, Word Recognition
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Menneer, Tamaryn; Stroud, Michael J.; Cave, Kyle R.; Li, Xingshan; Godwin, Hayward J.; Liversedge, Simon P.; Donnelly, Nick – Journal of Experimental Psychology: Applied, 2012
Searching simultaneously for metal threats (guns and knives) and improvised explosive devices (IEDs) in X-ray images is less effective than 2 independent single-target searches, 1 for metal threats and 1 for IEDs. The goals of this study were to (a) replicate this dual-target cost for categorical targets and to determine whether the cost remains…
Descriptors: National Security, Visual Perception, Eye Movements, Reaction Time