In order to clarify the relationship between anxiety vulnerability and clinical anxiety, information-processing models have been employed to examine the cognitive biases of anxious individuals for threat-related information. At the core of these models are research findings indicating that anxiety-linked attentional biases render high trait anxious individuals disproportionately vulnerable to the effects of stress. The current research, following the model of Williams, Watts, MacLeod, and Matthews (1988), tested the hypothesis that attention to threat-related information is due to the interaction of trait anxiety and state anxiety. / Five comparable studies employed emotional Stroop and probe-detection paradigms to assess the attentional biases of high and low trait anxious individuals to threat-related words in response to elevations of stress. Four of the studies assessed the preconscious and conscious attentional biases of adults and one study investigated the attentional biases of children. This focus allowed developmental comparisons that had not been undertaken previously. The studies were comparable to each other and to previous research. The studies sought to clarify the effects of different forms of stress on the anxiety-linked attentional biases and to assess the effects of these stressors on domain-specific stimuli. The hypotheses were that, in response to elevations in state anxiety, high trait anxious individuals show increased attention to threat and low trait anxious individuals show avoidance of threat. It was expected that these threat-related attentional biases are identified at both preconscious and conscious levels of processing, and more when the stimuli are related to the individuals’ domain of concern. / Contrary to expectations, only one study found the predicted pattern and this result occurred at a conscious level of processing. In addition to the lack of support for the hypotheses, a counter-intuitive alternative pattern that was the converse of predictions was identified in four of the five studies. In this pattern, in response to elevated stress, there was a trend for high trait anxious individuals to show decreased attention to threat and low trait anxious individuals to show increased attention to threat. The pattern was identified, in various studies, at conscious and preconscious levels of processing, and more in response to domain-specific stimuli. Adults and children showed similar levels and types of attentional biases. / The results of the current studies show some convergence with previous research. The findings are discussed in the context of a proposed model that incorporated aspects of Williams et al’s theories (1988; Williams, Watts, MacLeod, & Mathews, 1977) and Mogg and Bradley’s (1988) theory. This model suggests that high and low trait anxious individuals’ patterns of threat-related attentional biases vary according to their different levels of reactivity to stress, which affects their threat threshold. Due to differences in this threat threshold, high and low trait anxious individuals show divergent attentional responses under the same level of external stress. The model incorporates the avoidance effects identified in previous research and theory. This model may explain both the current counter-intuitive findings and past inconsistencies in the literature. It may also clarify how individuals with different levels of anxiety vulnerability show divergent attentional responses to stress elevations. It is suggested that inclusion of the notion of subjective stimulus threat value into the cognitive processing paradigm may clarify some of the unresolved issues raised in this research.

Thesis (Ph.D.)--University of Melbourne, Dept. of Psychology, 2000. / Typescript (photocopy). Includes bibliographical references (leaves 317-331).

Thesis (Ph.D.) in Psychology--University of Maine, 2008. / Includes vita. Includes bibliographical references (leaves 96-107).

Thesis (Ph.D.). / Written for the Dept. of Psychology. Title from title page of PDF (viewed 2009/06/10). Includes bibliographical references.

Thesis (M.S.)--University of Wyoming, 2009. / Title from PDF title page (viewed on Apr. 7, 2010). Includes bibliographical references (p. 37-40).

Thesis (M.S.)--Ohio University, November, 2005. / Title from PDF t.p. Includes bibliographical references (p. 48-59)

Thesis (Ph. D.)--Florida State University, 2006. / Advisor: Ted Chiricos, Florida State University, College of Criminology and Criminal Justice. Title and description from dissertation home page (viewed Sept. 21, 2006). Document formatted into pages; contains viii, 257 pages. Includes bibliographical references.

Thesis (master's) - Universität, Frankfurt am Main, 2004.

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What is the influence that state-level nationalism exerts on dynamics of threat perception? The primary goal of this research is to investigate in what ways and to what extent state-level nationalism is used as an indicator of states’ intentions by governments in order to reduce uncertainty about the possible motivations and behaviors of other countries, informing their processes of threat assessment. The main objective of this research is to investigate if the type of state-level nationalism displayed by a specific state (civic/cultural/ethnic) affects the perceptions of threat developed by other countries. The hypothesis advanced here is that the further away a country is from the civic variety of nationalism, the higher the level of threat perception developed by others. In order to assess this hypothesis, a strategy that allies case-study qualitative research with large-scale quantitative analysis is applied. Three comparative case studies are performed, focusing on how the United States, France and Great Britain perceived the changes in the nationalisms of Germany and Italy from 1934 to 1938, and if these changes informed in any way their assessment of threat during the interwar period. In addition to this, the final part of this dissertation encompasses a quantitative analysis designed to look into the main question addressed by this project from a different perspective, in an attempt to seek for the possible objective basis of the threat perceptions investigated in the case studies.