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Full-Text Articles in Psychology
The Role Of Selection History In Low-Prevalence Visual Search, Kendra Chamlee Smith
The Role Of Selection History In Low-Prevalence Visual Search, Kendra Chamlee Smith
Arts & Sciences Electronic Theses and Dissertations
The low prevalence effect (LPE), the tendency for observers to be more likely to miss rare targets than frequent targets, is a robust error and is difficult to reduce. The LPE is an obstacle in a variety of real-world search tasks in which targets are rare, including baggage screening and some medical imaging. The LPE is thought to occur because when an observer searches for a low-prevalence target, over time, the observer may become both more willing to indicate a target is not there and more likely to end the search early. The present experiments employ three selection history effects, …
Impaired Suppression Of Attentional Capture Near The Hands, Xiaojin Ma
Impaired Suppression Of Attentional Capture Near The Hands, Xiaojin Ma
Arts & Sciences Electronic Theses and Dissertations
Attention tends to be attracted to eye-catching stimuli, which, however, are not always helpful to look at, depending on the particular task. Recent findings demonstrated that attention to a salient but task-irrelevant distractor could be actively suppressed via a top-down process. In other research, increased scrutiny in visual inspection has been found in the near hand space, making it interesting to question, at the intersection of the two lines of research, whether the ability to ignore salient distraction would be compromised near the hands. Two experiments were conducted to test this idea. Experiment 1 compared the attentional allocation to a …