Improved X-Ray Baggage Screening Sensitivity with 'Targetless' Search Training

Autor/inn/en	Muhl-Richardson, Alex; Parker, Maximilian G.; Recio, Sergio A.; Tortosa-Molina, Maria; Daffron, Jennifer L.; Davis, Greg J.
Titel	Improved X-Ray Baggage Screening Sensitivity with 'Targetless' Search Training
Quelle	In: Cognitive Research: Principles and Implications, 6 (2021), Artikel 33 (20 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Muhl-Richardson, Alex)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	2365-7464
DOI	10.1186/s41235-021-00295-0
Schlagwörter	Air Transportation; Screening Tests; Spectroscopy; Security Personnel; Training; Simulation; Spatial Ability; Visual Stimuli + Suchen Sie Ihr Suchwort? Screening-Verfahren; Spektroskopie; Sicherheitsberuf; Ausbildung; Simulation program; Simulationsprogramm; Räumliches Vorstellungsvermögen
Abstract	When searching for a known target, mental representations of target features, or templates, guide attention towards matching objects and facilitate recognition. When only distractor features are known, distractor templates allow irrelevant objects to be recognised and attention to be shifted away. This is particularly true in X-ray baggage search, a challenging real-world visual search task with implications for public safety, where targets may be unknown, difficult to predict and concealed by an adversary, but distractors are typically benign and easier to identify. In the present study, we draw on basic principles of distractor suppression and rejection to investigate a counterintuitive 'targetless' approach to training baggage search. In a simulated X-ray baggage search task, we observed significant benefits to target detection sensitivity (d') for targetless relative to target-based training, but no effects of performance-contingent rewards or the inclusion of superordinate semantic categories during training. The benefits of targetless search training were most apparent for stimuli involving less spatial overlap (occlusion), which likely represents the difficulty and greater individual variation involved in searching more visually complex images. Together, these results demonstrate the effectiveness of a counterintuitive targetless approach to training target detection in X-ray baggage search, based on basic principles of distractor suppression and rejection, with potential for use as a real-world training tool. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01