Medicine and Health Sciences Commons^™

Reanalyzing The Activity Anorexia Protocol Using An Addiction Theory, Rolando Alfredo Botello

Theses and Dissertations

One researched and developed phenomenon is activity anorexia (AA) in rats and its resemblance to the human pathology anorexia nervosa (AN). Researchers have long relied on this comparative model for AN as AA. This study aims to reanalyze the overt physiological phenomena of AA to test an addictive theory against the prevalent AA theory. Equal numbers of subjects could eat or run during a one hour feeding period and all activity was monitored per 30 minutes. Results showed that daily running correlated with an increase in food consumption with no effect of food suppression. The only factor that regressed to …

Roller Derby As A Form Of Self-Empowerment: An Examination Of Female Athletes' Resilience To Intimate Partner Violence, Esmeralda Castillo

Theses and Dissertations

The purpose of this study is to explore if playing roller derby can yield one more resilient to Intimate Partner Violence (IPV). IPV is a major wellness concern to our present lives. However, there are many who experience violence, yet do not develop debilitating symptoms. The subject of resilience has emerged to account for this. Resilience can be interpreted as “bouncing back” from adversity, and adapting well to sources of stress (American Psychological Association, n.d.). Sport psychologists have recognized sport as a site for the development of resilient qualities. For females, team sports offer a context to experience empowerment. The …

Cognitive Effects Of Short Duration Short Wavelength Visible Light, Sarah J. Bolton

Theses and Dissertations

This thesis research looks at the effects of short duration, high intensity, short wavelength light with the goal of determining if converting typically white colored lights in breakrooms and bathrooms to blue will cause workers who normally work in a low light environment to be more alert and productive. Sixteen participants were outfitted with Electroencephalography (and Electrooculography (EOG) equipment before being exposed to 200 lux of either 460 nm blue light or D6500 white light for 30 minutes. Afterwards, the light levels were changed to 3.5 lux of D6500 light and the participants were asked to perform six cognitive tests …

Is Self-Interest At The Root Of Political Behavior? An Examination Of The Effects Of Dark Personality And Demographics On Political Beliefs And Actions, Nathan A. S. Frishberg

Theses and Dissertations

Prediction of political behavior is of interest to scientists in the fields of psychology, sociology, and politics, as well as to the lay public. Previous research has connected personality to broad political leanings, but little if any published research has examined how personality relates to voting behavior. The current study built on earlier work by examining the connections among the Dark Triad of personality (psychopathy, narcissism, and Machiavellianism), demographics, specific political beliefs, and political behaviors. We hypothesized that dark personality would relate to political beliefs such that those higher on the Dark Triad would show stronger support for policies that …

Molecular Brain Adaptations To Ethanol: Role Of Glycogen Synthase Kinase-3 Beta In The Transition To Excessive Consumption, Andrew D. Van Der Vaart

Theses and Dissertations

Alcoholism is a complex neuropsychiatric disease that is characterized by compulsive alcohol use and intensifying cravings and withdrawals, often culminating in physiologic dependency. Fundamental alterations in brain chemistry underlie the transition from initial ethanol exposure to repetitive excessive use. Key mediators of this adaptation include changes in gene expression and signal transduction. Here we investigated gene expression pathways in prefrontal cortex and nucleus accumbens following acute or chronic ethanol treatment, to identify genes with potentially conserved involvement in the long-term response of the corticolimbic system to repeated ethanol exposure. We investigated Gsk3b, which encodes glycogen synthase kinase 3-beta, as a …

Shared Genetic And Environmental Influences On Fear, Anxiety, Posttraumatic Stress, And Brain Morphometry, Chelsea Sawyers

Theses and Dissertations

Anxiety disorders (ADs) and stress-related disorders are some of the most common psychiatric disorders in the United States. Like other c0mplex psychiatric illness, genetics and neuroimaging research has focused on understanding their underlying neurobiology. Areas within the fear-network play important roles in threat perception, fear conditioning/learning, cognitive processing, and modulation of fear responses including contextual modulation and extinction and have been implicated in ADs as well as stress disorders such as posttraumatic stress disorder (PTSD). The primary gap in the current search for underlying biological mechanisms is in whether biomarkers associated with disorders share genetic influences with the disorders they …

Aerobic Exercise Exposure Targeting Anxiety Sensitivity: Effects On Associated Health Behaviors In Young Adults, Autumn Lanoye

Theses and Dissertations

Anxiety sensitivity (AS) is associated with health behaviors such as low rates of physical activity, overeating, alcohol use, and poor sleep; however, interventions targeting AS via exercise-based interoceptive exposure have not assessed these as outcomes. In addition, previous studies are limited by brief follow-up periods. This study aimed to replicate previous aerobic exercise interoceptive exposures with an extended (6-week) follow-up and measurement of health behaviors.

Participants were 44 sedentary young adults with elevated AS randomized to intervention (6 20-minute sessions of moderate-intensity treadmill walking) or assessment-only control. Assessments took place at baseline, week 2 (post-treatment), week 4, and week 8 …

Genetic And Environmental Influences Of Bullying Involvement: A Longitudinal Twin Study, Ellyn Dunbar

Theses and Dissertations

Introduction—Bullying involvement is associated with many long-term adverse outcomes. Bullied children are at risk for internalizing disorders including anxiety, depression and suicidal behavior in childhood and adulthood. Bullies are also at risk for psychiatric disorders, specifically externalizing disorders. Bully victims—children who are both bullied and bullies—have a particularly poor prognosis, with a higher risk for internalizing and externalizing disorders. The purpose of this study is to study the epidemiology, risk of psychiatric disorders, and genetic and environmental influences of being bullied, a bully, and a bully victim—in the sample and individually in males and females.

Methods—Twins (N=2,844, aged …

Referential Indexing: The Role Of Space In Reference Processing, Cameron Smith

Theses and Dissertations

A number of studies have suggested that spatial representations are used during language comprehension in a number of different paradigms (e.g. Ferreira et al., 2008; Gunter et al., 2015). These studies have largely focused on the visual modality, suggesting that people may use spatial cues in the visual environment to aid them in language comprehension. Importantly, the primary modality of spoken language is audition, which raises the question of whether the reliance on spatial information is specific to referents that are visible or at least were visible at some point. Thus, in this study, we examined whether spatial representations are …