Medicine and Health Sciences Commons^™

Evidence-Based Practices And Self-Efficacy: A Quantitative Study Of Mental Health Counselors Treating Clients With Substance Use Disorder, Carl Bastien

Dissertations

Substance use disorder affects a substantial number of individuals in the United States. The specific problem of this research is that it was not known to what extent their use of evidence-based practices is driven by their sense of self-efficacy. The purpose of this quantitative correlational research was to examine to what extent the use of evidence-based practices covary with a sense of self-efficacy for mental health counselors treating individuals diagnosed with a substance use disorder. The study population was 121 mental health counselors who specialized in substance use disorder treatment who completed a digital survey. The study findings did …

Hiv And Early Life Stress On Neuroimaging And Risky Behavior, Paola Garcia Egan

Dissertations

This study examined the interactive effects of early life stress (ELS) and HIV on brain morphometry, diffusion-basis-spectrum-imaging (DBSI), risky decision-making, and sex-risk behavior. 122 people with HIV (PWH) and 113 people without HIV (PWoH), free of major psychiatric illness and neurological confounds, were stratified into high (≥ 3 events) vs. low (< 3 events) ELS [PWoH/low ELS (n = 57), PWoH/high ELS (n =56), PWH/low ELS (n = 43), PWH/high ELS (n = 79)] and underwent structural magnetic resonance imaging, DBSI, neuropsychological, and risky-behavior assessment; all PWH were virologically controlled. Compared to PWoH, PWH had smaller orbitofrontal cortex (OFC), parietal lobes, insula, caudate and anterior cingulate. No ELS effects were detected in volumetric measures. Significant interactions were found between HIV serostatus and ELS on the OFC and on cellularity of the inferior fronto-occipital fasciculus after multiple comparisons adjustment. Specifically, PWH/high ELS exhibited significantly smaller OFC and PWoH/high ELS show significantly larger OFC than the other groups. PWoH/high ELS exhibited higher DBSI cellularity (neuroinflammation proxy) of the inferior-occipital-fasciculus compared to PWoH/high ELS. Regardless of HIV status, executive function moderated the relationship between the OFC and sex-risk behavior such that individuals within the sample who performed above average on a measure of executive function and had a larger OFC reported fewer sex partners in past six months than individuals with smaller volumes. No interaction was found between HIV serostatus and ELS on risky behavior measures. Clustering analyses defined ELS subgroups in PWH that were determined by demographic characteristics, duration of infection, recent CD4+ T-cell count, nadir CD4+ T-cell count and high/low ELS.Even in PWH that are virologically controlled, without major current psychiatric comorbidities, there is evidence of a synergistic impact of ELS and HIV on OFC volumes. Higher volumes in the OFC were detrimental when associated with lower executive function scores or advantageous when associated with higher executive function. Findings suggest that ELS is associated with different brain signatures among PWoH and virally suppressed PWH. However, ELS was not directly associated with risky behaviors, and subgroups in PWH were characterized by demographic variables, past substance use and HIV clinical variables.

Primary Care Physician Delivered Brief Behavioral Intervention For Adult Obesity And Associated Health Conditions, Julia C. Huston

Dissertations

Obesity is a chronic health condition with prevalence rates that have continued to rise steadily over the past 30 years to the point that it has now been declared a global epidemic and a serious public health concern. Obesity is associated with significant physical and economic costs, primarily resulting from co-occurring health conditions that increase the risk of morbidity including type II diabetes, hypertension, dyslipidemia, stroke, coronary heart disease, and respiratory problems. Despite the dissemination of several obesity treatments, including pharmacotherapy, lifestyle modification, and bariatric surgery, the prevalence and severity of obesity continues to rise. Federal guidelines recommend the use …

The Predictors Of Juvenile Recidivism: Testimonies Of Adult Students 18 Years And Older Exiting From Alternative Education, La Toshia Palmer

Dissertations

Purpose: The purpose of this descriptive, qualitative study was to identify and describe the importance of the predictors of juvenile recidivism and the effectiveness of efforts to prevent/avoid juvenile recidivism as perceived by previously detained, arrested, convicted, and/or incarcerated adult students 18 years of age and older exiting from alternative education in Northern California. A second purpose was to explore the types of support provided by alternative schools and the perceived importance of the support to avoid recidivism according to adult students 18 years of age and older exiting from alternative education.

Methodology: This qualitative, descriptive research design identified …

Olfactory Enrichment In California Sea Lions (Zalophus Californianus), Mystera M. Samuelson

Dissertations

In the wild, California sea lions (Zalophus californianus) are exposed to a wide array of sensory information at all times. However, it is impossible for captive environments to provide this level of complexity. Therefore unique procedures and practices are necessary for the maintenance of physiological and psychological health in captive animals (Wells, 2009). This project aims to explore the behavioral effect of scent added to the environment, with the goal of improving the welfare of captive sea lions by introducing two scent types: 1.) Natural scents, found in their native environment, and 2.) Non-natural scents, not found in …

Neurochemical Effects Of Amyloid-Beta Oligomers In Rats, John J. Panos

Dissertations

Alzheimer’s disease is a progressive neurodegenerative disease characterized by memory loss and cognitive decline. Although the symptomology of Alzheimer’s disease is well defined, its precise etiology remains elusive. Animal models are invaluable for understanding the pathogenesis of this devastating disease. Knowledge of the neurochemical actions of amyloid-β oligomers in specific brain structures is essential for validating animal models of Alzheimer’s disease and for determining the most appropriate behavioral assays of memory. The specific aim of this project was to investigate the neurochemical effects of direct intracerebral infusion of amyloid-β oligomers in the rat. Experiment 1 investigated direct infusions of synthetic …

Quality Of Life Factors Among Recovering Alcoholics, George Edwin Compton Jr.

Dissertations

The inspiration for undertaking the current research came from the Student Investigator’s own experience of 19 years in recovery from alcoholism. During his early years in graduate school, the Student Investigator witnessed occasional misunderstandings among some academics and helping professionals regarding the nature of alcoholism, and, specifically, the tasks involved in sustaining enduring recovery from alcoholism. Thus, this dissertation research, which has sought to examine, through qualitative research methodology, the factors involved in achieving and sustaining quality of life in extended recovery from alcoholism was undertaken.

Several authors have noted the need for research which focuses on long-term recovery from …

Analysis Of Factors Involved In Ratings Of Treatment Acceptability For Trichotillomania, Amy J. Elliott

Dissertations

Based on the literature, trichotillomania (or chronic hair pulling) appears to be responsive to behavioral interventions, with habit reversal as the most promising intervention. Habit reversal has been shown effective with children and adults of varying levels of severity, but some have questioned the generality and acceptability of the procedure. Little is known about the acceptability of interventions for habit disorders. These two research studies were designed to answer questions regarding the acceptability of behavioral and pharmacological interventions for trichotillomania and to expand the conceptual knowledge of treatment acceptability.

Study 1 compared the acceptability of four interventions targeting trichotillomania. The …

Self-Criticism As Experienced By Performing Artists A Phenomenological Study, Rosemary Hakes

Dissertations

The purpose of this study was to describe and document the essence of the experience of self-criticism for performing artists with the aim of providing recommendations for educational and therapeutic purposes. Moustakas (1994) defines essence as “that which is common or universal, the condition or quality without which a thing would not be what it is” (p. 100). In this study a phenomenological research paradigm was used. Each step in the data reduction process built directly toward revelation of essence through synthesis.

The central question guiding this research was: What is the essence of self-criticism as it is experienced by …

Promoting Healthy Behavior Change In Skin Cancer Risk Reduction Using The Transtheoretical Stages Of Change Model, Sherry L. Pagoto

Dissertations

Skin cancer is the most commonly diagnosed cancer in the United States with 20% of people developing some form of skin cancer in their lifetime (American Cancer Society, 1999). In spite of the high incidence of skin cancer, it is highly preventable. Approximately 90% of the cases are caused by exposure to ultraviolet radiation from the sun (Skin Cancer Foundation, 1992). The effect of an intervention aimed at reducing skin cancer risk was compared to a survey only control group in 99 Chicago beach-goers. The intervention was based on the Transtheoretical Stages of Change Model (TTM) and included sun sensitivity …

Disruption Of The Discriminative Stimulus Effects Of (+)-3, 4-Methylenedioxymethamphetamine (Mdma) By (± )-Mdma Neurotoxicity: Protection By Fluoxetine, Thomas B. Virden Iii

Dissertations

It is well established that repeated, high doses of 3, 4-methylenedioxymethamphetamine (MDMA) result in the long-term depletion of serotonin levels and destruction of serotonergic terminals in various locations in the brains of a variety of species. Further, it is also well known that concomitant injections of the serotonin reuptake inhibitor, fluoxetine, prevents this deterioration. It has recently been noted that such MDMA neurotoxicity disrupts stimulus control in rats trained to discriminate MDMA from saline in a drug discrimination procedure (Schechter, 1991a).

In order to extend Schechter's findings to the optical isomers of MDMA and to explore the potential of fluoxetine …

The Discriminative Stimulus Properties Of Morphine And U-50,488h In A Three-Key Assay: A Mu And Kappa Opioid Discrimination In The Pigeon, Malath Makhay

Dissertations

Opiate drugs have been classified in two-choice assays according to their ability to produce generalization in animals to the prototypicix opiate, morphine, versus vehicle, or to the k opioid, U -50,488H versus vehicle injections (Picker & Dykstra, 1987). A three-choice discrimination procedure, in which subjects discriminate among morphine, U -50,488H , and vehicle injections, might afford a greater degree of precision in characterizing the subjective effects of opioids. The feasibility of such a procedure was demonstrated in the present study, in which five pigeons were trained to discriminate among injections of 5 .6 m g/kg morphinel 5 .6 m g/kg …

Motivational Effects On A Psychometric Measure Of Prefrontal Brain Functioning In Patients With Chronic Schizophrenia And Related Disorders, Paul C. Smith

Dissertations

This study compared multiple sequential performances on a computerized version of the Wisconsin Card Sorting Test (Grant & Berg, 1948; Harris, 1986) by adult men receiving institutional inpatient treatment for chronic schizophrenia and related disorders. Participants were exposed to differential test conditions of minimal post-session non-contingent token reinforcement (baseline phases) and enhanced intra-session performance-contingent token reinforcement (experimental phase). Each major participant resided at the same continuing treatment unit at Kalamazoo Regional Psychiatric Hospital receiving similar social therapies but idiosyncratic psychotropic medication regimens, changes in which were tracked in relation to test performances. A simple single-subject reversal design was employed with …

The Effects Of Spouse-Based Cognitive-Behavior Therapy On The Treatment Of Agoraphobia, Joan Woods

Dissertations

The purpose of this clinical research was to determine whether spouse-supported treatment of agoraphobia would result in greater improvement on measures of exposure and avoidance than would individual treatment or no treatment. It was hypothesized that Couples Treatment subjects would demonstrate a significantly greater change from pretest to posttest than would Individual Treatment subjects or No-Treatment Control subjects. The study further predicted that significant improvements would be demonstrated for both treated groups on the same outcome measures, pretest to posttest and from pretest to follow-up.

Total N was 10 subjects, all were agoraphobic, married, and female, with 4 in Couples …