Documentation of progress in maritime alerting research – Developing a new method for analyzing eye movements to alerts


  1. Salmon, J.P.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Continuing research at DRDC Atlantic has been investigating what type of visual alert would maximally capture attention of an operator engaged in a radar-like classification task. The goal of this research is to eventually provide a recommendation on a visual alert to support the current auditory alerting system present on Frigate-class naval vehicles. This Contract Report outlines work completed (February-March, 2011) involving analysis of experiment #7, and design and development of software, plus pilot data collection for the next experiment. Results from experiment #7 indicated that moving the displays around did impact participants’ performance on the task, and that participants were better at shifting their attention from the right to the left than from the left to the right. However, reaction times were still the fastest when alerts were shown on all displays simultaneously. Further, mouse position was a significant predictor of reaction time to alerts, but eye-position was better still – indicating that eye-tracking does provide a significant improvement to the quality of data collected from this research. Finally, experiment #8 sought to further investigate the difference in continuous eye movements in response to a border or bar alert. The code from the programming software (E-prime Psychology Software) was modified to collect continuous eye location and mouse location data (sampling every 30 ms or 33.3 Hz), and the programming language code (Visual Basic for Ap

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Report Number
DRDC-ATLANTIC-CR-2011-064 — Contractor Report
Date of publication
01 Oct 2011
Number of Pages
Electronic Document(PDF)

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