Thesis (M.A.)--Western Kentucky University, 2008. / Includes bibliographical references (leaves 35-40).

Thesis (M.S.)--University of Massachusetts Amherst, 2009. / Open access. Includes bibliographical references (p. 95-100).

Thesis (M.S.)--West Virginia University, 2007. / Title from document title page. Document formatted into pages; contains vii, 105 p. : ill. Includes abstract. Includes bibliographical references (p. 51-63).

In everyday life, we come across visual distractors such as crossing the street or driving down the highway, but what properties of distractors determine whether they will affect cognitive processing? Relatively little is known about how the strength of a distractor or changing it over time affects the ability to deploy attention. Previous studies have shown that suprathreshold stimuli interfere more in the Simon Effect than near threshold stimuli. However, it is unknown whether this effect is due simply to motor inhibition or generalizes to tasks without a motor component. To test the generalizability of this effect, an attentional blink task was presented in which a coherent motion stimulus surrounded a rapid serial visual presentation stream. The study demonstrated that the highest coherence condition presented first had the greatest effect on performance accuracy. This is suggestive of a diffused attentional state. / Includes bibliography. / Thesis (M.A.)--Florida Atlantic University, 2021. / FAU Electronic Theses and Dissertations Collection

Thesis (M.S.)--Rochester Institute of Technology, 2009. / Typescript. Includes bibliographical references (leaves 41-43).

Thesis (M.A.)--York University, 2008. Graduate Programme in Higher Education. / Typescript. Includes bibliographical references (leaves 33-37). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR45942

The term cognitive control refers to a variety of mental processes that support goal-directed behavior. In the current dissertation, I focus on the role of cognitive control in situations where a weaker (but task-relevant) source of information must be selected over a stronger (but task-irrelevant) source of information. The efficiency with which individuals select information in the face of distraction has classically been viewed as a function of static control settings tied to task instructions. Recent evidence suggests, however, that variations in the efficiency of cognitive control can be induced by variations in stimulus experience and that multiple control settings may be maintained for a single task. To date, little is known about the mechanisms that support this more flexible form of control. Across six experiments, I find evidence for the formation of multiple control settings that are relatively long lasting but fragile. Multiple control settings can be maintained within a single experiment and can last over relatively long periods of time, however, without the proper contextual support these control settings fall apart. These results emphasize the important role of stimulus experience in studies of cognitive control.

Thesis (Psy.D.)--University of Northern Colorado, c2005. / Adviser: David Gonzalez. Includes bibliographical references.

Thesis (Ph. D.)--Michigan State University. Dept. of Psychology, 2008. / Title from PDF t.p. (viewed on July 8, 2009) Includes bibliographical references (p. 142-147). Also issued in print.

Thesis (M.S.)--Villanova University, 2009. / Psychology Dept. Includes bibliographical references.