Social and Behavioral Sciences Commons^™

Traumatic Brain Injury Severity In Older Adults: Impact On Anxiety And Depression Symptoms And Community Engagement, Ashley Tomford

Theses and Graduate Projects

Background: Traumatic Brain Injury (TBI) is one of the leading causes of physical and cognitive disability worldwide. TBI can negatively impact cognitive, physical, social, and psychological functioning.

Objective: This study investigated interactions between TBI severity, mental health symptom severity, and community engagement among older adults. Specific aims included investigating 1) the relationship between TBI severity at the time of injury and psychiatric symptom severity at one-year post-TBI; 2) the relationship between TBI severity and community engagement at one-year post-TBI; and 3) whether mental health symptom severity moderated the relationship between TBI and post-injury community engagement.

Methods: Archival data was analyzed …

Underlying Mechanisms Of Generalized Anxiety Disorder In An Experimental Fear-Conditioning Paradigm, Melissa Hartnell

Theses and Graduate Projects

The purpose of this study was to examine the potential underlying mechanisms of generalized anxiety disorder (GAD) including fear generalization, maladaptive avoidance, and intolerance of uncertainty (IU) in a sample of adults with GAD, as compared to healthy controls in the context of a lab-based fear conditioning paradigm. The current study utilized data from the University of Minnesota ANGST Laboratory’s Danger Zone – Research Domain Criteria (DZ-RDoC) neuroimaging study. Participants consisted of 40 individuals ranging from ages 18-60, with 19 meeting criteria for GAD (M age = 30.57, SD = 11.70) and 21 healthy controls (M age = …