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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
Litchfield, Damien; Ball, Linden J.; Donovan, Tim; Manning, David J.; Crawford, Trevor – Journal of Experimental Psychology: Applied, 2010
Double reading of chest x-rays is often used to ensure that fewer abnormalities are missed, but very little is known about how the search behavior of others affects observer performance. A series of experiments investigated whether radiographers benefit from knowing where another person looked for pulmonary nodules, and whether the expertise of…
Descriptors: Eye Movements, Identification, Human Body, Diagnostic Tests
Menneer, Tamaryn; Donnelly, Nick; Godwin, Hayward J.; Cave, Kyle R. – Journal of Experimental Psychology: Applied, 2010
Previous studies have demonstrated a dual-target cost in visual search. In the current study, the relationship between search for one and search for two targets was investigated to examine the effects of target prevalence and practice. Color-shape conjunction stimuli were used with response time, accuracy and signal detection measures. Performance…
Descriptors: Reaction Time, Security Personnel, Stimuli, Incidence
Rice, Stephen; McCarley, Jason S. – Journal of Experimental Psychology: Applied, 2011
Automated diagnostic aids prone to false alarms often produce poorer human performance in signal detection tasks than equally reliable miss-prone aids. However, it is not yet clear whether this is attributable to differences in the perceptual salience of the automated aids' misses and false alarms or is the result of inherent differences in…
Descriptors: Feedback (Response), Response Style (Tests), Young Adults, Performance Technology
Menneer, Tamaryn; Cave, Kyle R.; Donnelly, Nick – Journal of Experimental Psychology: Applied, 2009
With the use of X-ray images, performance in the simultaneous search for two target categories was compared with performance in two independent searches, one for each category. In all cases, displays contained one target at most. Dual-target search, for both categories simultaneously, produced a cost in accuracy, although the magnitude of this…
Descriptors: Search Strategies, Psychopathology, Undergraduate Students, Diagnostic Tests