Psychology Commons^™

Trauma Mediating The Severity Of Depressive Symptoms In Veterans With Ptsd, Meghan Curtin

Dissertations

Trauma serves as a risk factor for developing both posttraumatic stress disorder (PTSD) and depression. The purpose of this study was to examine trauma type as a mediator in the relationship between gender and severity of depressive symptoms among veterans with PTSD. The literature shows trauma type plays a role in developing PTSD and depressive symptoms. The first hypothesis was that female veterans who met the diagnostic criteria for PTSD would report higher levels of depressive symptoms than their male counterparts. The second hypothesis was that this gender difference would be partly mediated by levels of interpersonal trauma experience. Self-report …

Covid-19, Olfactory Functioning, And Depressive Symptoms, Kevin Davis Psy.D.

Dissertations

The focus in this study was to investigate whether people who continue to experience a disordered sense of smell after recovering from COVID-19 are more likely to have higher levels of depressive symptoms. Data collection involved two questionnaires: the Patient Health Questionnaire-9 (PHQ-9) to assess depressive symptoms and the Assessment of Self-Reported Olfactory Functioning and Olfaction-Related Quality of Life (ASOF) to assess olfactory functioning. Additionally, general survey questions were asked to evaluate physical and mental health outcomes related to COVID-19. Results showed individuals who did not subjectively return to their baseline sense of smell after recovering from COVID-19 had lower …

Individual Differences And Neural Correlates Of Emotion Reactivity And Regulation: Potential Intervention Targets In Depression, Ian James Kahrilas

Dissertations

Depression, Electroencephalography, Emotion reactivity, Emotion regulation

The Impact Of Peer Supportive Accountability On Use Of A Mindfulness App In Depressed College Students: A Mixed Methods Study, Carol Hundert Gonzales

Dissertations

Depression, Mental Health App, Mindfulness, Supportive Accountability

Cortisol Administration Normalizes Aberrant Functional Connectivity In Women With Depression, Adam C. Runyan

Dissertations

Previous resting-state functional connectivity (rsFC) research has identified aberrant connectivity in several large brain networks in depression, including the default mode (DMN), frontoparietal (FPN), and salience networks (SN). Connectivity of these networks is also related to depressive symptom severity and is affected by cortisol levels. To our knowledge, this is the first study to investigate the effects of acute cortisol administration on rsFC of DMN, FPN, and SN in individuals varying in depression history and severity. We collected resting-state fMRI scans for 74 women with and without a history of depressive disorder after administration of cortisol and placebo using a …

Preclinical Behavioral Assessment Of Chronic, Intermittent Low-Dose Psilocybin In Rodent Models Of Depression And Anxiety, Harmony I. Risca

Dissertations

Recent studies have demonstrated the clinical efficacy of psychedelic-assisted psychotherapy for treatment-resistant depression and anxiety. Amidst the overall success of recent clinical trials using a single high dose of psilocybin, anecdotal reports indicate anxiolytic and antidepressant effects following a repeated low dose regimen. As therapeutic outcomes are often tightly intertwined with the individual’s subjective experience, animal models are used as objective measures to investigate the underlying mechanisms responsible for the putative antidepressant/anxiolytic effects of psychedelics. Three rodent models predictive of anxiolytic or antidepressant effects were used to evaluate effects of chronic intermittent low dose (CILD) psilocybin treatment; the Light/Dark conflict …

Adherence To A Mindfulness App For College Students With Depression: Patterns, Predictors, And Outcomes, Brynn Marie Huguenel

Dissertations

National trends indicate that mental health concerns, particularly rates of depression, continue to rise on college campuses; however, treatment utilization remains low. Technology-based mental health interventions, such as mental health apps (MHapps), are a promising means of overcoming treatment barriers. MHapps are effective in improving psychological outcomes, but low rates of adherence are a noted limitation. The current study explored patterns of adherence to a MHapp, investigated the bidirectional relation between adherence and depression, and identified motivational predictors of adherence rates. Undergraduate students (N= 66) reporting clinically-elevated depressive symptoms completed a three-month trial using Headspace, a mindfulness MHapp. Patterns of …

Assessing A Cognitive Model Of Trauma-Related Sleep Disturbance, Rebecca Chesher

Dissertations

Sleep disturbance is a symptom of many mental health disorders that may negatively affect cognition and mood. Trauma-related sleep disturbance is a core reaction of traumatic stress and PTSD, similar to symptoms experienced by individuals with insomnia or other sleep-wake disorders. Although the cause and symptom progression of trauma-related sleep disturbance may be very different, research and clinical practice assess and treat it with measures and interventions designed for general insomnia. Using a cognitive model of insomnia modified for trauma-related sleep disturbance, the current study assessed the relations between select trauma and sleep variables within the proposed constructs of: 1) …

Community Violence Exposure Among Ethnic Minority Youth: Understanding The Predictive Roles Of Depressive Symptoms And Risky Behavior In A Community Sample, Amanda Nicole Burnside

Dissertations

Ethnic-minority youth residing in urban communities are disproportionately impacted by community violence exposure (ECV), and despite decades of research, rates of ECV in youth continue to increase. Further, person-based analyses have demonstrated variability in rates of ECV, even among youth who share similar risky demographic factors and it is important to examine the utility of psychological factors as predictors of ECV. Drawing from public health frameworks and the reciprocal-stress model, the current study seeks to better understand the longitudinal relationship between various components of depressive symptoms (depressed affect, somatic symptoms, depressive cognitions, suicidal thoughts and behaviors) in the prediction of …

An Examination Of The Relationship Between Adolescent Depression, Anhedonia, And Behavioral Therapy, Alison A. Delizza

Dissertations

Adolescent depression is a significant public health problem, however the current characterization of depression as a categorical label is problematic for understanding individual phenomenology, interindividual variability, and best treatment practices (Lewinsohn, Solomon, Seeley, & Zeiss, 2000). Anhedonia has been posited as a process underlying depression that may contribute to poorer outcomes (Gabbay, 2015). The current project examines large samples of adolescents diagnosed with depression to identify common features at a symptom level and the relationship these features have with behavioral therapy outcomes. Four phases of analyses were completed to 1) examine symptomology of multiple depressed adolescent samples in order to …

Understanding Comorbid Depression In The Context Of Ptsd Through Underlying Dimensions, Melissa Turkel

Dissertations

Depression co-occurs with Posttraumatic Stress Disorder at a high rate, resulting in numerous complications for pathology and treatment. More research is needed regarding variables that may explain this common comorbidity. One possible variable is that of underlying dimensions, latent factors that give rise to these manifestations of psychopathology. This study explored potential underlying mechanisms of comorbid PTSD and depression, including negative affect, rumination, emotion dysregulation, neuroticism, and behavioral inhibition. While previous studies have investigated these dimensions individually, there is a dearth of research that simultaneously investigates multiple dimensions or determines the relative contributions of underlying dimensions to psychopathology. Thus, the …

The Influence Of Stressful Life Events On The Development Of Type 2 Diabetes, Joshua Minks

Dissertations

This study examined the relationship between distress and the development of Type 2 diabetes mellitus (T2DM) in the presence of established risk factors. Distress secondary to mental health disparities, stressful life events, and work conditions has been shown to promote insulin resistance and the development of T2DM.

Subjects (N=79) diagnosed with T2DM within the previous six months were recruited from SSM Health Centers and VA Medical Centers in the greater St. Louis area. They completed the Recent Life Changes Questionnaire, ENRICHD Social Support Instrument, and a demographic survey and analyses were conducted to determine differences between the veteran …

The Relationship Between Combat Experience, Veteran Pathology And The Pathology Of Their Intimate Partners: What Factors Predict The Pathology Of Veterans And Their Intimate Partners, Edwin A. Brennan

Dissertations

Problem Statement

Military members and their family members who are part of the Global War on Terrorism have experienced deployments and war for over sixteen years and with the resulting toll on both the veteran and their intimate partner. As a result, higher levels of pathology, such as PTSD, Anxiety, and Depression have been experienced by this population. While research has studied the effect of combat on military members, very little research has addressed the effects on family members. Further, no research that has been found by this researcher, has addressed the concept of resonating of pathology between the combat …

The Effects Of Chinese Calligraphy On Reducing Anxiety And Comorbid Depression Levels Among Breast Cancer Patients In Hong Kong, Anna Liu

Dissertations

Problem

Breast cancer is the most common cancer among women worldwide. Anxiety is a prevalent psychological concern in breast cancer patients and has negative impact on the course of their disease, treatment and recovery. This study was to investigate the effects of Chinese calligraphy on reducing the anxiety and comorbid depression levels among Hong Kong breast cancer patients with an intention to support the needs of breast cancer patients by providing alternative therapy that is culturally receptive. The primary objective of the study was to examine to what extent Chinese calligraphy intervention can reduce the anxiety and comorbid depression levels …

The Lived Experience Of Individuals With Chronic Back And Neck Pain, Depression, And/Or Anxiety, Tara L. Palmeri

Dissertations

More than 1.5 billion people worldwide suffer from chronic pain (CP). People who experience chronic pain are 20 to 40% more likely to meet criteria for an anxiety disorder, and three to four times more likely to be clinically depressed than their pain-free counterparts. The relationship between CP and mental health has been studied quantitatively; however, few researchers have investigated co-morbid CP and mental health through a phenomenological lens. The subjective nature of the relationship is not comprehensively addressed within the literature.

This qualitative phenomenological study explored (a) how individuals with chronic back and/or neck pain (CBNP) experience, understand, and …

Yoga As An Ancillary Treatment To Acceptance And Commitment Therapy For Depression, Jeralee M. Briggs

Dissertations

It is estimated that up to 30% of college students feel clinically depressed, and these feelings can lead to poor grades, substance abuse, unsafe sex, and suicide (National Institute of Mental Health, 2016). Acceptance and Commitment Therapy (ACT) has shown to be an effective form of psychotherapy for depression and was listed in 2014 as an evidence-based treatment for depressive disorders according to the APA Presidential Task Force on Evidence-Based Practice (2006). In addition to psychological treatment, various exercise interventions have been shown to be effective in reducing depressive symptoms (e.g., Rehorst, Wipfli, & Landers, 2009). Yoga is one such …

An Evaluation Of The Acceptability And Effects Of A Computer-Delivered Values-Based Behavioral Activation Treatment For Depression Among Older Adults, Kellie Reynolds

Dissertations

Depression is a common psychological disorder among older adults and is associated with serious secondary effects to health and social well-being. Behavioral activation has been found to be an efficacious treatment for depression. However, there is limited research on the treatment effects of behavioral activation with older adults. In general, older adults under-utilize mental health treatments. Computer-delivered treatments have been developed to address access and under-utilization. The purpose of this dissertation was to evaluate the acceptability and effects of a computer-delivered values-based behavioral activation treatment for depression in older adults. This study consisted of two phases. Phase I consisted of …

Cognitive And Neural Correlates Of Coping And Resilience In Depression, Catherine Lee

Dissertations

Depression is one of the most prevalent and devastating psychological disorders, often with a chronic or remitting/reoccurring course. The inability to effectively cope with stress and negative life events has been strongly linked to the development and maintenance of depression symptoms; yet, the cognitive and biological processes underlying the complex and multidimensional behavioral construct of coping are not well understood. Using a combination of self-report measures, computerized cognitive tasks, and scalp electroencephalography (EEG) methodologies, the present study investigated associations between specific executive function abilities (i.e., inhibition and set-shifting), underlying neural activity, coping strategy and flexibility, and depression symptoms. Results did …

Learning To Learn And Naming Through Receptive And Expressive Identification, Kelli Perry

Dissertations

Poor or no language skills are typical of most preschool children with autism (American Psychological Association, 2013). Language can be divided into the two components of receptive, or listener, skills and expressive, or speaker, skills. Recommendations for sequencing language instruction vary across the different behavior-analytic instructional models (Lovaas, 1981; Barbara & Rasmussen, 2007; Sundberg & Partington, 1998; Sundberg, 2008). The current study sought to examine those recommendations using young children (three- to four-years-old) with limited vocal repertoires and to explore the acquisition of learning to learn (Harlow, 1949) and naming (Greer & Ross, 2007). This research (1) adds to the …

Migratory Loss And Depression Among Adult Immigrants Of Chinese Descent, Christine Chih-Ting Chang

Dissertations

The immigration process does not only include the life after relocating to a new environment and settling down in the host society but also includes separation from the life before their departure and the negotiation between redeeming and closing their losses. This study was the first attempt to investigate migratory loss among adult immigrants of Chinese descent. The study developed the Migratory Loss Scale and examined the moderation effect of acculturation as well as the moderation effect of the presence of immigration-related meaning on the relationship between migratory loss and depression. The study also examined the mediation effect of the …

Investigating The Role Of Cognitive Biases As A Risk Factor For Depression, Daniel Aaron Dickson

Dissertations

Consistent with the combined cognitive bias hypothesis (Hirsch, Clark, & Mathews, 2006), cognitive biases in attention, memory, and interpretation have been posited as an underlying vulnerability to the maintenance and recurrence of depressive episodes. While research supports the presence of these biases during current depressive episodes, there is limited evidence that these biases persist following the remission of depression symptoms. However, there is some initial data that suggest that these biases persist in remitted depressed individuals, indicating that these biases may serve as a vulnerability factor for subsequent depressive episodes. In addition, there is little research that has evaluated these …

The Relation Of Anxiety, Depression, And Stress To Binge Eating Behavior, Diane L. Rosenbaum

Dissertations

Binge eating is an impairing and prevalent problem. Theories of binge eating suggest negative affect is of primary importance in the development and maintenance of binge eating behavior. To date, investigations of binge eating have often examined depression, however relatively little is known about other psychological factors. The current study aimed to extend the literature by examining several psychological factors in relation to binge eating behavior. Specifically, the relation between binge eating behavior and three psychological factors, depression, anxiety and stress, were examined. Data were collected via online surveys from a community sample of men and women of diverse backgrounds. …

Testing A Model Of Maladaptive Perfectionism And Depression Symptoms: The Roles Of Emotional Disclosure, Emotion Regulation Strategies, Adult Attachment, And Shame, Angela M. Garrison

Dissertations

Previous research has supported a link between maladaptive perfectionism and higher levels of depression symptoms. However, researchers have not yet investigated the ways in which emotion regulation processes may mediate this relationship. Therefore, the primary purpose of this study was to evaluate emotional disclosure, emotional avoidance, and rumination as mediators of the relation between maladaptive perfectionism and depression symptoms. Additionally, this study also investigated the role that insecure attachment orientations play in the relationship between maladaptive perfectionism and use of particular emotion regulation strategies. Further, the role of shame in the emotion regulation processes of individuals with higher levels of …

A Brief Acceptance And Commitment Therapy Protocol For Depression In An Inpatient Setting: An Effectiveness Study, Lucas Broten

Dissertations

The present study sought to investigate the utility of a brief Acceptance and Commitment Therapy (ACT) protocol for the treatment of depression in an inpatient setting. ACT is a generally promising treatment for a variety of psychological issues. Thirty-nine participants were randomly assigned using and weighted, blocked distribution to either Treatment as Usual (TAU) or individual sessions of ACT in conjunction with treatment as usual (ACT). The study compared re-admission rates between the ACT intervention group and the TAU group at 3 and 6 months. In addition, the study examined the proposed mechanisms of change between groups and depression rates …

Computerized Behavioral Activation Treatment For Major Depressive Disorder And The Effects On Sexual Desire, Anthony G. Bonita

Dissertations

The present study was designed to examine the effects of a computerized behavioral activation treatment program on sexual desire, sexual behavior, and depression symptoms. Seven adults who met criteria for either major depressive disorder or dysthymic disorder were recruited from Kalamazoo, Portage, and surrounding areas in Southwestern Michigan. All participants completed at least five sessions of behavioral activation treatment, and six out of seven participants completed all ten sessions. Symptoms of depression, sexual desire, and sexual behavior were assessed at pretreatment and before each treatment session through a combination of the Beck Depression Inventory – II (BDI-II), the Revised Hamilton …

Stereotypes And Patient-Provider Communication: Testing The Effects Of Depression, Socioeconomic Status, And Race, Amy N. Kerr

Dissertations

The current project included a pilot and primary study with experimental designs to explore the impact that a patient's race, mental health and socioeconomic status (SES) have on impression formation, affective reactions, and communication with patients. The

medical literature shows that health disparities exist for minorities and individuals with low socioeconomic statuses (Adler & Ostrove, 1999). In addition individuals with severe mental illness receive low quality care for their physical health in comparison to those presenting only a physical illness (Lawrence & Kisely, 2010).

To explore this phenomenon, pilot study participants read one of eight descriptions of a man visiting …

An Evaluation Of Social Capital's Effect On Depression Among Adolescents, Ezechukwu Awgu

Dissertations

Mental illness has been described as a “global burden of disease,” and depression accounts for a large part of the burden (Aslund, Starrin, Nilsson, 2010). In 2009, 35.7 percent of the adolescent population in the United States who reported past-year symptoms of a major depressive episode, for example, feelings of sadness, discouragement, loss of feelings of self-worth, and loss of interest in social activities, also used illicit drugs including marijuana, inhalants, hallucinogens, cocaine, heroin, and prescription-type psychotherapeutics for non-medical purposes (SAMHSA, 2009, APA, 1994). Additionally, substance abuse due to alcoholism was among the major causes of death for adolescents aged …

The Impact Of Treating Major Depression During Pregnancy On The Postpartum Phase, Jamie Kent

Dissertations

Major depression during pregnancy is a risk factor for postpartum depression (PPD). Medically acceptable treatments for depression during pregnancy and postpartum are limited and many women are turning to complementary and alternative treatments. The current project examined whether treatment of major depression during pregnancy reduced the risk for PPD and explored predictors of PPD in this high-risk sample. One hundred twenty women were clinically assessed using the Hamilton Rating Scale for Depression (HRSD17), the Beck Depression Inventory (BDI-II), and the Structured Clinical Interview for DSM-IV (SCID) at ten weeks, six months, and nine months postpartum following random assignment to one …

Neuropsychological Assessment Of Executive Functioning And Its Association With Depressive Symptomology, Erica Jean Kalkut

Dissertations

The current study explored the construct of executive functioning and neuropsychological measurement techniques used to assess executive functioning (EF). Two current comprehensive measures of executive functioning include the Behavior Rating Inventory of Executive Functioning-Adult Version (BRIEF-A) and the Delis-Kaplan Executive Functioning System (D-KEFS). The BRIEF-A is a self-report questionnaire that reportedly assesses behaviors associated with EF, and the D-KEFS is a battery of tests that are objectively administered by a trained examiner to directly measure different manifestations of EF ability. This study examined the relationship between gender and general intellectual ability on EF and investigated each measure's construct validity in …

Structural Models Of Comorbid Anxiety And Depression In A Primary-Care Older Adult Sample: Effect Of Medical Illness Severity, Threat, Chronicity, And Progressiveness On Model Fit, William Michael Palmer

Dissertations

Recent research suggests that anxiety disorders may be more common in later life than previously thought. Among other factors, the presence of comorbid mood disorders and medical illness confounds accurate assessment and diagnosis of these conditions in the elderly. There have been few studies, however, examining the structural relationships between anxiety and depression with older-adult samples, and even fewer have considered the effect of medical illness on these relationships. This study examined three established structural models of anxiety and depression, using a clinical sample of older adults seeking treatment in a primary-care setting (N = 2,163). It was hypothesized that …