Visual Alerting and Display Configuration for Sensor Operators


  1. Greenberg, S.
  2. Crebolder, J.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
An experiment was conducted to investigate automated visual alerting in complex environments where operators rely on multiple display workstations to perform high-intensity tasks. The Halifax Class frigate is an example of such an environment; where the auditory modality is well used and where visual alerts might be an alternate means for alerting operators. The experiment investigated the effects of various display configurations on alert detection time and used an eye-tracking system to determine which screen operators were looking at when alerts appeared. All previous studies in this series have used the same display configuration within a three-display workstation and general findings have shown that alerts appearing on the far-right display are detected slower than on the other two displays. The present study investigated whether previous findings were a result of the display configuration or whether there is a more general perceptual bias toward information that appears to the left of center. In this experiment static bars appeared as alerts in the periphery of one or all three screens used by the participant. At the time of writing, the results had not been analyzed. However, subsequent work showed that the results supported the hypothesis of a perceptual bias to the left of center, regardless of display configuration.

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Report Number
DRDC-ATLANTIC-TM-2011-065 — Technical Memorandum
Date of publication
01 Jun 2011
Number of Pages
Electronic Document(PDF)

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