Improving perceptual judgement for recognizing improvised explosive threats – Assessment of the effectiveness of the environment familiarization and indicator trainer


  1. Zotov, V.
  2. Jarmasz, J.
  3. Lamb, M.
  4. Wojtarowicz, D.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN)
Improvised Explosive Devices (IEDs) pose a significant threat to the safety of Canadian Armed Forces (CAF) personnel currently deployed in overseas missions. Anecdotal evidence indicates that experienced convoy crews develop an intuitive sense of potential IED threats in unfamiliar terrain. The Environment Familiarization and Indicator Trainer (EFIT) is a tool developed by DRDC Toronto in an attempt to train this intuitive IED detection capability. EFIT provides cultural familiarization of the operational terrain by exposing troops to real video of convoy operations integrated with current high-resolution satellite imagery and vector data. A study was conducted to evaluate EFIT’s effectiveness as a training tool for recognizing and detecting indicators of IED threat in a realistic environment. Participants were asked to perform two separate, video-based threat perceptual/judgment tasks, and their responses were compared to those of CAF troops with previous operational experience with IEDs in Afghanistan, in order to determine whether EFIT training improved their baseline IED threat assessment skills. Participants who trained with EFIT improved in their ability to distinguish between lower and higher IED threat situations (as determined by a panel of experts), relative to participants who did not receive the training. Feedback from the participants showed that they gained a better understanding of the specific IED indicators and the general contextual clues of IED-related th

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Report Number
DRDC-TORONTO-TR-2013-155 — Technical Report
Date of publication
01 Oct 2014
Number of Pages
Electronic Document(PDF)

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