Effectiveness Evaluation of Search and Target Acquisition Training Prototype Using Performance Metrics With Eye-Tracking Data |
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Authors: | Ji Hyun Yang Michael E. McCauley Edward Masotti |
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Affiliation: | 1. MOVES Institute, Naval Postgraduate School, and Department of Automotive Engineering, Kookmin Universityyangjh@kookmin.ac.kr jihyun.yang1@gmail.com;3. MOVES Institute, Naval Postgraduate School;4. TRADOC Analysis Center-Monterey, Monterey, California |
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Abstract: | Despite the increased use of sensor technologies, including unmanned vehicles, the vast majority of improvised explosive device (IED) detections are made by human vision. Thus, TRAC-Monterey developed a simulation-based training prototype called the perceptual learning trainer (PLT). Fourteen novice and 5 expert IED detectors participated in human-in-the-loop experiments in which all participants were trained using the PLT tool while their eye-movement and IED detection performance were tracked in real-time. A series of 100 IED images with various degrees of difficulty was used for the training session. Pre- and posttraining assessments were conducted. Both speed and accuracy improved after just 1 session of the PLT training: RT decreased by 3.7 s for novices (p < .001) and 3.4 s for experts (p = .031), and detection probability increased by 5.9% for novices (p = .001). The PLT tool improved IED detection performance more in novice IED detectors than in experts. Novices and experts showed different visual scan patterns. |
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Keywords: | search and target acquisition IED (improvised explosive device) target detection perceptual learning eye tracking signal detection theory |
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