Degree Discipline

Is Mind Wandering the Mechanism Responsible for Life Stress Induced Impairments in Working Memory Capacity? (open access)

Is Mind Wandering the Mechanism Responsible for Life Stress Induced Impairments in Working Memory Capacity?

The relationship between life stress and working memory capacity (WMC) has been documented in college students and older adults. It has been proposed that intrusive thoughts about life stress are the mechanism responsible for the impairments seen in WMC. To examine the mechanism responsible for these impairments the current study attempted to induce intrusive thoughts about personal events. The current study allowed for a test of predictions made by two theories of mind wandering regarding the impact of these intrusive thoughts on WMC task performance. One hundred fifty undergraduates were assigned to a control group, positive event group, or negative event group. Participants in the positive and negative event groups completed a short emotional disclosure about an imagined future positive or negative event, respectively, to induce positive or negative intrusive thoughts. WMC measures were completed prior to and following the emotional writing. Results indicated a significant relationship between WMC and mind wandering, however the writing manipulation did not result in any consistent changes in intrusive thoughts or WMC. The results suggest a causal relationship between WMC and mind wandering. The emotional valence of the intrusive thought altered the impact on WMC. No relationship was seen between the measures of stress …
Date: August 2011
Creator: Banks, Jonathan Britten
System: The UNT Digital Library
Terror Management Theory and Body Image (open access)

Terror Management Theory and Body Image

Research has not explicitly examined the link between key components of terror management theory (TMT) and body image without the use of mortality salience. This project explored the link between cultural worldview, self-esteem, body image, and death anxiety. Multiple measures were used to create a structural equation model examining relationships between body image and death anxiety as mediated by body image in the context of TMT. The proposed model did not fit the data. Minor modifications were made to the model keeping within the proposed theoretical perspective. In the modified model the relationships between cultural worldview and death anxiety as mediated by body image were either non-existent or weak. Hierarchical regression analyses did suggest that some aspects of body image indeed did predict some, but not all dimension of death anxiety in this sample of young adults.
Date: December 2011
Creator: Fish, Joshua Stephen Andrus
System: The UNT Digital Library