Two-component model of security inspection: application and findings.

Security inspection is a form of visual inspection that presents a changing set of potential targets, i.e. threats. However it has not been shown how the unique features of security inspection fit into more general models of industrial and other inspection tasks. Spitz and Drury [2] developed equations based on modeling the inspection task as containing both search and decision components. The current research tested the applicability of this twocomponent model to x-ray screening, and utilized the model to determine how a training program (ie. X-Ray Tutor) affected the search and decision parameters. Performance data from 416 airport screeners evaluating 40 x-ray images of passenger bags was analyzed. The analysis found model vs. data r values averaging above 0.8, showing the applicability of the model to a security x-ray task. [Note: Due to security reasons, all detection measures have been multiplied by an arbitrary constant.]

[1]  C G Drury,et al.  Inspection of Sheet Materials — Model and Data , 1975, Human factors.

[2]  N. Sigala,et al.  Visual categorization and the inferior temporal cortex , 2004, Behavioural Brain Research.

[3]  H. Bülthoff,et al.  Learning to recognize objects , 1999, Trends in Cognitive Sciences.

[4]  Colin G. Drury,et al.  The Impact of Instructions on Aircraft Visual Inspection Performance: A First Look at the Overall Results , 2003 .

[5]  C G Drury,et al.  Predicting Search Performance for Multiple Targets , 1980, Human factors.

[6]  I. Gauthier,et al.  Computational approaches to the development of perceptual expertise , 2004, Trends in Cognitive Sciences.

[7]  Adrian Schwaninger,et al.  Evaluation of CBT for increasing threat detection performance in X-ray screening , 2004 .

[8]  William J. Hoyer,et al.  Age and Skill Differences in the Processing Demands of Visual Inspection , 1996 .

[9]  Colin G. Drury,et al.  Training for strategy in visual search , 1997 .

[10]  C G Drury,et al.  Inspection of Sheet Materials—Test of Model Predictions , 1978, Human factors.

[11]  Arthur F Kramer,et al.  Visual Skills in Airport-Security Screening , 2004, Psychological science.

[12]  A. Schwaninger,et al.  Measuring visual abilities and visual knowledge of aviation security screeners , 2004, 38th Annual 2004 International Carnahan Conference on Security Technology, 2004..

[13]  S. J. Czaja,et al.  Aging and Pretraining in Industrial Inspection , 1981, Human factors.

[14]  Jeff K. Caird,et al.  Age Differences in Visual Search for Traffic Signs During a Simulated Conversation , 2004, Hum. Factors.