Igor Dolgov

Joshua Sandry3
Jeremy Schwark3
Harvey Thornburg2
Christopher G Todd2
3Joshua Sandry
3Jeremy Schwark
2Harvey Thornburg
2Christopher G Todd
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Many critical search tasks, such as airport and medical screening, involve searching for targets that are rarely present. These low-prevalence targets are associated with extremely high miss rates Wolfe, Horowitz, & Kenner (Nature, 435, 439-440, 2005). The inflated miss rates are caused by a criterion shift, likely due to observers attempting to equate the(More)
We introduce a theory of how game mechanics are signaled through interfaces. Game mechanics may be signaled through player-perceived affordances, player-interpreted signifiers, avatar-perceived affordances, avatar-interpreted signifiers, arbitrary signifiers, or metagame signifiers, and may be obscured with hidden affordances and false signifiers. Each has(More)
Our ability to detect a target in visual search relates to the prevalence of the target, whereby rare targets are missed more than common targets. The current study sought to identify operator characteristics that could account for the higher miss rates associated with rare targets. The results found that working-memory capacity, which is strongly related(More)
In the present work we test how well two interceptive strategies, which have been proposed for catching balls hit high in the air in baseball and cricket, account for receivers in American football catching footballs. This is an important test of the domain generality of these strategies as this is the first study examining a situation where the pursuer's(More)
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Certain aspects of a visual search task, such as the location where a target often appears, are learned over time and can serve as a source of attentional guidance. An example ofthis implicit learning, spatial probability cuing speeds detection of targets that appear in probable locations. The current study investigated target feature probability learning(More)
Previous work investigating the strategies that observers use to intercept moving targets has shown that observers maintain a constant target-heading angle (CTHA) to achieve interception. Most of this work has concluded or indirectly assumed that vision is necessary to do this. We investigated whether blindfolded pursuers chasing a ball carrier holding a(More)
Recent theories of attention have proposed that selection history is a separate, dissociable source of information that influences attention. The current study sought to investigate the simultaneous involvement of selection history and working-memory on attention during visual search. Experiments 1 and 2 used target feature probability to manipulate(More)