Training in Visual Search for SAR
I recently started to read Mark Gleason’s paper – THE SEARCH FOR HUMAN REMAINS IN THE SEARCH AND RESCUE ENVIRONMENT. I’d downloaded it a while back and skimmed it, but hadn’t sat and thought about it much. I got as far as the first page before I got very distracted by something he wrote about “search images”;
Most experienced searchers possess mental images of what to look for with respect to a missing person based upon cumulative experience in the field. That degree of field experience lessens as the search mission moves along the continuum from live subject to dead subject, from dead subject to decomposing subject, and from decomposing subject to non-intact human remains or clandestine graves.
So we must ask ourselves whether or not the searchers we dispatch into the field have a realistic image of what they are tasked to look for?
Gleason references Stoffel, who wrote some interesting words on vision and perception, which can be found at http://www.eri-online.com/uploads/TheBriefing-PODConnection.pdf
But I had to learn a bit more; deeper reading into the subject led me to the global-focal model which suggests the way vision is processed works in a predictable manner – global impression, discovery search, reflective search and post-search recall. Â More reading suggested that accuracy in visual search can be improved with specific training and this would reflect the results of the sweep width reports and the higher sweep widths of park rangers and trackers – who are used to the search environment.
Lots of tracking texts I have read start with training the eye to “see” things in the outdoors etc. Maybe this should be studied more in SAR, and become part of search training – a bit like the old “clue” field exercise that used to be done before its meaning got lost and became just a find everything practical.
I’m sure I’ll be writing more on this sometime…
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November 4, 2009
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Robert Bradley ·
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Tags: Global-focal Model, Lowland Search, SAR, Search Images, Search Techniques, Search Training, Sweep Width, Tracking, Visual Search · Posted in: Search Research, Search Thoughts, Search Training



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