Generalizing from single target search to multiple target search

Drury, Colin G.; Hong, Seung-Kweon

doi:10.1080/14639220052399122

Cited by 21 publications

(11 citation statements)

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“…Courtney and Chan (1985a,b) found that the boundaries of visual lobes were irregular with insensitive regions within field areas, and there were large differences between participants. These results partly accounted for the inaccuracy of performance prediction produced by traditional mathematical visual search models based on the assumption of regular and homogeneous visual lobes (Drury and Hong 2000, Hong and Drury 2002, Hong 2005. In order to have a more sensitive and detailed description of visual lobe shape so as not to rely on the gross measure of size alone, proposed a set of 16 shape indices to provide an easy and precise way to quantify lobe shape.…”

Section: Introductionmentioning

confidence: 96%

Effect of display polarity and luminance contrast on visual lobe shape characteristics

2012

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The effect of display polarity and luminance contrast on visual lobe (effective visual field) shape characteristics was studied using three levels of luminance contrast with combinations of positive and negative polarities. The binocular effective visual field for a detection task, with a peripherally presented target (V) embedded in a homogeneous competing background (Xs), was mapped on 24 imaginary axes passing through the fixation point. The results showed that visual lobes mapped using positive polarity were statistically larger in area, rounder and more regular in shape than those for negative polarity. The medium contrast condition lobes were more symmetric and regular than low contrast condition lobes, and lobe area and perimeter increased with increasing luminance contrast ratio. Under the interaction of positive polarity and high luminance contrast, visual lobes were found to be larger, smoother and rounder. The high level of luminance and contrast however resulted in a higher degree of visual discomfort. The results indicated that positive polarity and contrast of medium (26:1) to high (41:1) levels are possible display settings for better visual lobe characteristics and better anticipated search performance.Practitioner Summary: The effect of display polarity and luminance contrast on visual lobe shape characteristics was examined with uniform stimulus materials in this study. The results help to identify the optimum display settings for luminance contrast and display polarity to enhance lobe shape characteristics and hence search performance in industrial inspection tasks.

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Section: Introductionmentioning

confidence: 96%

Effect of display polarity and luminance contrast on visual lobe shape characteristics

2012

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“…Thus, for a particular visual search task, the exact parameters in the model should be obtained by an experiment that simulates the specific practical search situations. In addition, both random and systematic search models for a single-target or multiple-target task are based on the assumption that the visual lobe is regular and homogeneous (Drury and Hong 2000;Morawski, Drury, and Karwan 1980;Yu and Chan 2013). However, the results of this study show that the visual lobe is neither regular nor homogeneous.…”

Section: Discussionmentioning

confidence: 83%

Age-related changes in visual lobe shape characteristics and their relationship to visual search performance

Rong

Yang

2014

Ergonomics

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“…As successive fixations of the visual lobe on different points occur at about three per second, it is possible to determine how many fixations are required for complete coverage of the area to be searched. We have useful models of visual search applicable to inspection (Wolfe 1994;Drury and Hong 2000), but the point made here is that all inspection tasks in aviation do involve some search, in contrast to many laboratory vigilance tasks.…”

Section: Analysis Of Inspection Tasks In Aviationmentioning

confidence: 99%

Temporal Effects in Aircraft Inspection: What Price Vigilance Research?

Drury

Saran

Schultz

2004

Proceedings of the Human Factors and Ergonomics Society Annual

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This paper examines issues of fatigue in inspection by using an established function analysis of inspection to show its characteristics, and then proposing a four-level classification of temporal effects to help future applications. This classification divides the temporal effects into four components: weekly, daily, hourly, and minute time scales. The analysis presented here will form the basis for the design of future experimental studies of temporal factors in aircraft inspection.

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Generalizing from single target search to multiple target search

Cited by 21 publications

References 0 publications

Effect of display polarity and luminance contrast on visual lobe shape characteristics

Effect of display polarity and luminance contrast on visual lobe shape characteristics

Age-related changes in visual lobe shape characteristics and their relationship to visual search performance

Temporal Effects in Aircraft Inspection: What Price Vigilance Research?

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