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Accession Number ADA569946
Title Searching in Clutter: Visual Attention Strategies of Expert Pilots.
Publication Date Oct 2012
Media Count 6p
Personal Author A. Van Lamsweerde M. Lohrenz M. Trenchard M. R. Beck R. R. Goldstein
Abstract Clutter can slow visual search. However, experts may develop attention strategies that alleviate the effects of clutter on search performance. In the current study we examined the effects of global and local clutter on visual search performance and attention strategies. Pilots and undergraduates searched for an elevation marker in charts of high, medium, and low global clutter. The target was in a low or high local clutter region of the chart or it was absent. High global and local clutter slowed search performance for both pilots and undergraduates. Pilots were more accurate but slower. Pilots' search strategies differed from undergraduates in the following ways: they had more conservative criteria for responding target absent and spent more time processing the information within each fixation. Pilots and undergraduates used a coarseto-fine search strategy in which, as the trial progressed, fixation durations increased and saccade distance decreased.
Keywords Attention
Visual perception

Source Agency Non Paid ADAS
NTIS Subject Category 57A - Anatomy
57S - Physiology
Corporate Author Louisiana State Univ., Baton Rouge.
Document Type Technical report
Title Note Conference paper.
NTIS Issue Number 1314
Contract Number 554741

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