Psychology Commons^™

Uncertainty In The Context Of End-Of-Life Communication In Heart Failure, Caleb Pardue

Dissertations

End-of-life communication between patients, their family members, and healthcare providers is essential to quality care at the end-of-life. Advance care planning is increasingly utilized to facilitate end-of-life communication, but heart failure patients in particular face numerous challenges to achieving adequate end-of-life communication. Extant literature has highlighted the inherent uncertainty in heart failure as a barrier to end-of-life communication as well as the role of time perspective on the experience of heart failure patients, but little empirical research has been conducted to examine the impact of these constructs. The sample included 168 participants with heart failure who were recruited online through …

Searching For A “Home”: Examining The Experiences Of Confucian Asian College Students With Third Culture Kid Backgrounds, Yuima Mizutani

Dissertations

Third culture kids (TCKs) spend their childhood and adolescence outside of their home countries. Because of their unique backgrounds, TCKs and adult TCKs face challenges including identity development, low self-esteem, lack of connection with their home countries, posttraumatic stress disorder, depression, adjustment disorder, and others. Although the number of TCKs is increasing due to globalization, this population has been understudied. Moreover, most existing research has focused on TCKs in Western countries. Few researchers have studied Confucian Asian adult TCKs; that is, adult TCKs from China, Hong Kong, Singapore, Japan, South Korea, Taiwan, and others. Confucian Asian countries have collectivistic cultures …

Empowering Nurses Of Minority In The Face Of Incivility And Bullying: Through The Lens Of Phenomenology, Corrine Floyd

Dissertations

Abstract

Up to 85% of nurses have reported exposure to incivility in the workplace (Hunt & Marini, 2012). The often-subtle nature of incivility toward nurses in a minority population may partially explain why it remains a problem. Healthcare organizations realize the need for civility to counter the high turnover rate, staff shortages, and low job satisfaction reported by nurses, but lack understanding of how nurses of a minority population perceive incivility and bullying. This study aimed to answer the research question how do nurses with minority representation experience incivility and bullying versus empowerment in the workplace? A descriptive phenomenological design …

Recognition Of Gender Microaggressions In The Workplace: The Case Of Predisposition And Propensity To Recognize, Alicia Ako-Brew

Dissertations

This study examined the individual factors that affect the recognition of gender microaggressions in the workplace. A total of 220 subjects participated in this study. Specifically, this study revealed how social dominance orientation, ambivalent sexism and gender discrimination perceptions toward women affect a third-party observer’s recognition of gender microaggressions perpetrated against women. In addition, this study examined the effect of role congruence on the propensity to recognize gender microaggressions. Role congruence stems from role congruity theory which posits that a woman in a leadership or masculine role will receive positive or negative evaluations based on the degree to which she …

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) …

Exclusionary Beliefs, Multicultural Ideology, Empathy, And Perceived Threat: A Comprehensive Model Of Anti-Immigrant Prejudice, Reigna El-Yashruti

Dissertations

Despite the increased movement of people across national borders, anti-immigrant sentiment continues to pose challenges to immigrant mental health and disrupt intergroup relations. In the USA, where over 14% of the population is comprised of foreign-born individuals, immigrants continue to face prejudice from both the public and political administration. Intergroup Threat Theory (ITT) explains this prejudice as stemming from the perception that the out-group poses a threat to the cultural purity, economic stability, or physical safety of the in-group. Traits that promote group exclusion, such as perceived group superiority (i.e. Right-Wing Authoritarianism; RWA, Social Dominance Orientation; SDO, cultural dominance; CD) …

Psychological Factors Related To Physical Activity In Adult Congenital Heart Disease, Tyler Pendleton

Dissertations

Adults with congenital heart disease (ACHD) are a new and growing medical population. While medical interventions previously focused on reducing rates of infant mortality, current research suggests increased risk of premature mortality in ACHD may be partially due to acquired cardiovascular disease. One lifestyle intervention to reduce acquired cardiovascular risk is physical activity. Physical activity has been supported in the research as a safe, efficacious, and tolerable intervention for many ACHD; however, most patients do not engage in recommended levels of physical activity. The purpose of this study was to investigate psychological factors related to physical activity in ACHD. Participants …

Neurobiological Mechanisms Of Cognitive Processing Therapy For Post-Traumatic Stress Disorder: A Brain Network Approach, Tessa Vuper

Dissertations

Psychotherapy research is increasingly targeting both psychological and neurobiological mechanisms of therapeutic change. This trend is evident in and applicable to post-traumatic stress disorder (PTSD) treatment research given the high nonresponse rate of individuals with PTSD who undergo cognitive-behavioral therapy (CBT). A review of the literature investigating neurobiological mechanisms of CBT in PTSD reveals inconsistent results that fail to fully support dual process or learning models of CBT effects in the brain. However, network-based models of psychopathology provide a new framework from which to understand both mental disorder symptoms and therapeutic mechanisms. The current study investigated a) whether brain networks …

Women’S Sexual Satisfaction In The Context Of Midlife Relationships: Examining An Ecological Model And Intergenerational Caregiving, Katherine M. Arenella

Dissertations

This study examined an ecological model of sexual satisfaction in midlife women in relationships, and paid particular attention to the role of intergenerational caregiving in predicting satisfaction. Participants were 1,411 midlife women in relationships who participated in the Midlife in the United States (MIDUS) national study. Using split samples for replication purposes, data from this survey were examined to test the hypothesis that an ecological model - including the macrosystem level variable of religiosity, the exosystem level variables of SES, social support, and parenthood, the mesosystem level variables of relationship satisfaction, affectual solidarity, relationship length, and sexual functioning, and the …

Ptsd Symptom Interaction Among Victims Of Interpersonal Violence: A Network Analysis, Robert Graziano

Dissertations

Along with numerous combinations of symptoms, posttraumatic stress disorder (PTSD) is linked to high dropout and non-response rates in treatment. Poor treatment response may be due to an inaccurate conceptualization of PTSD. One newer approach to the conceptualization of psychopathology is network theory. Network theory posits that symptoms both directly and indirectly reinforce each other, with connections between symptoms varying in strength. Previous studies of network theory and PTSD have found intrusive symptoms to be highly central, but have not included samples of individuals traumatized by interpersonal violence. Because trauma type has been shown to predict symptom presentations, this represents …

Different Exercise Tendencies Modulate Behavioral And Molecular Changes To Opioid Or Exercise-Induced Reward, Amanda Titus

Theses

Reward changes were observed in rodents with different exercise tendencies by utilizing the conditioned place preference paradigm. Adult male Wistar rats with distinct phenotypes (low volume runners, high volume runners, and wild-type) were given access to a running wheel or an injection of morphine as a rewarding stimulus. There was no difference observed in the strength of conditioned place preference between the rewarding stimuli. Extinction was significantly more effective in low volume runners than high volume runners and wild-type animals, as was observed in the lower percentage of time spent in their assigned conditioning chamber. These findings suggest that low …

Up-Regulation Of Sexual Desire In Long-Term Relationships: Self-Report And Electrophysiological Data, Lauri L. Davis

Theses

Diminished sexual desire is a common in long-term relationships yet little research has examined strategies to promote sexual desire within healthy intact couples. This study focused on three regulation strategies: 1) positive reappraisal of the partner, 2) reappraisal of sexual desire decline, and 3) sexual imagery. These regulation strategies were used to test for an increase in sexual desire, infatuation, attachment, and relationship satisfaction for the partner. We additionally examined whether these strategies increased motivated attention to the partner as indicated by the late positive potential (LPP), an event-related potential (ERP) component. Participants (N=25, age=18-32 yrs, 6 men) …

Sedative And Neurotoxic Properties Of Brexanolone Compared To Midazolam In The Developing Rodent Brain, Jacob Huffman

Dissertations

The developing brain is susceptible to extensive neurotoxicity following exposure to sedative/anesthetic drugs (SADs). Every year hundreds of thousands of children around the world are exposed to SADs with no viable non-neurotoxic agents approved for clinical use. Allopregnanolone (AlloP) has well-established sedative effects in adults and neonates. AlloP and many SADs produce sedation/anesthesia through allosteric modulation of GABA_A receptors, which is one of two principal mechanisms behind SAD-induced neurotoxicity. Evidence suggests AlloP has the unique capacity to regulate key apoptotic factors in adults and is widely involved with critical stages of neurodevelopment, indicating this neurosteroid might serve as a …

Influences Of Salvinorin A And Sex Differences On Depressive- And Anxiety-Like Behaviors In A Chronic Mild Stress Paradigm, Sarah Mitchell

Theses

Kappa opioid receptors are colocalized with dopamine receptors and are frequently associated with depression, anxiety, stress, and drug use and abuse. KOR antagonism has widely been considered anti-depressive and anxiolytic in animal models while agonism is pro-depressive and anxiogenic. However, recent findings suggest that SalvA, a natural kappa agonist derived from a plant in the mint family, can reduce depressive- and anxiety-like behavior in rats. The current study investigated the effects of chronic mild stress on behavior, attenuation by SalvA, and sex differences. 52 Long-Evans rats, 26 males and 26 females, were exposed to six weeks of CMS. Animals received …

The Vulnerability Of Chronic Stress: Implications For Feeling Like Giving Up, Miranda Jany

Theses

The feeling of learned helplessness has been associated with prolonged stress and trauma. Additionally, many previous studies have examined the relationship between stress and decreased feelings of control, such as self-efficacy and locus of control. However, these forms of control have been primarily self-reported. The present study aimed to investigate the relationships among learned helplessness, chronic stressors, and self-agency using a computer-based task. We also measured heart rate variability (HRV) during the self-agency task to assess psychophysiological correlates of these variables. Seventy-four participants completed a series of questionnaires that were used to assess lifelong stressors (e.g., exposure to natural disasters, …

Meaning In The Noise: Neural Signal Variability In Major Depressive Disorder, Sally M. Pessin

Theses

Clinical research has revealed aberrant activity and connectivity in default mode (DMN), frontoparietal (FPN), and salience (SN) network regions in major depressive disorder (MDD). Recent functional magnetic resonance imaging (fMRI) studies suggest that variability in brain activity, or blood oxygen level-dependent (BOLD) signal variability, may be an important novel predictor of psychopathology. However, to our knowledge, no studies have yet determined the relationship between resting-state BOLD signal variability and MDD nor applied BOLD signal variability features to the classification of MDD history using machine learning (ML). Thus, the current study had three aims: (i) to investigate the differences …

A Multilevel Examination Of Unethical Pro-Organizational Behavior Decision-Making: The Role Of Citizenship Pressure, Moral Disengagement, And Moral Intensity, William Bryant

Dissertations

Unethical pro-organizational behaviors (UPB) are unethical behaviors that are intended to benefit the organization or its members. Research on this type of behavior typically involves assessing attitudinal and dispositional predictors of UPB but has largely failed to understand the process through which UPB occurs. One potential elicitation process could be through a perceived obligation that an employee has to help their organization, or citizenship pressure. By adapting Rest’s four stage model of ethical decision-making and social exchange theory, the current study aimed to identify how organizational identification might increase perceptions of citizenship pressure, and how citizenship pressure might influence elements …

Do Hardworking Role Models Lower Implicit Gender-Science Bias?, Christina Garasky

Theses

Prior research has demonstrated that implicit gender-science biases discourage women from pursuing careers in science, technology, engineering, and math (STEM). Gender-science biases promote the belief that women cannot be successful in STEM, which can affect women's sense of belonging and commitment to STEM. While women scientists serving as role models benefit women in STEM by decreasing implicit gender-science biases and increasing perceived belonging and performance in STEM, the influence of role model qualities on implicit bias has not been widely explored. The current study examined the influence role model qualities (hardworking, gifted) have on implicit gender-science bias. The research also …

Can Ratings Of Item Location Enhance Statistical Item Parameter Estimation? Extending The Feasibility Of Unfolding Irt Models, Michael Mckenna

Dissertations

Research and development of modern psychometric methods such as item response theory have drastically changed the way we understand and carry out the measurement of psychological constructs. Despite this, there has been relatively little adoption by psychological researchers to incorporate these methods into their research. While multiple explanations are surely valid, one oft stated reason is the large sample size requirements of these methods. The sample size requirements of item response theory are needed so that effective estimation of item parameters can be carried out. In an attempt to make these modern measurement methods more accessible and feasible to psychological …

Characteristics Of Notes Taken During The Employment Interview And Their Impact On Organizational Outcomes, James T. Mundell

Dissertations

Note-taking during the interview process has been recommended by both academics and practitioners. However, little research on note-taking in employment interviews exists. Although the limited amount of research points to the benefits of note-taking, characteristics of the notes taken have not been studied in detail and in relation to many organizational outcomes. As such, this study examined characteristics of note-taking (including job relatedness, detail, and valence) and their impact on interview question scores, hiring recommendations, hiring decisions, employee performance, and turnover. Archival data from an organization was utilized and the notes taken during employment interviews were coded to better understand …

More Than Just Words On A Screen: A Biopsychosocial Approach To Understanding Effects Of Race-Related Media, Melinda Kittleman

Dissertations

Racial disparities in physical and mental health are ongoing and well-documented problems in the United States. Black Americans, compared to White Americans, have higher risk of obesity, heart disease, cancer, depression, and substance abuse. Research suggests prejudice and discrimination play a role in racial health disparities. Everyday discrimination is considered a chronic, psychosocial stressor that impacts the health of Black Americans. A biopsychosocial approach states there are various factors that contribute to the pathway from discrimination to disease and proposes complex relationships that explain effects of racial discrimination on health. The current study examined social factors (race-related media), biological factors …