Varying Target Prevalence Reveals Two Dissociable Decision Criteria in Visual Search

@article{Wolfe2010VaryingTP,
  title={Varying Target Prevalence Reveals Two Dissociable Decision Criteria in Visual Search},
  author={Jeremy M. Wolfe and Michael J. Van Wert},
  journal={Current Biology},
  year={2010},
  volume={20},
  pages={121-124}
}
Target prevalence powerfully influences visual search behavior. In most visual search experiments, targets appear on at least 50% of trials [1-3]. However, when targets are rare (as in medical or airport screening), observers shift response criteria, leading to elevated miss error rates [4, 5]. Observers also speed target-absent responses and may make more motor errors [6]. This could be a speed/accuracy tradeoff with fast, frequent absent responses producing more miss errors. Disproving this… CONTINUE READING