Medicine and Health Sciences Commons^™

Sexual Reward And Depression, Andrea R. Di Sebastiano

Electronic Thesis and Dissertation Repository

Sexual behavior in male rats is a complex rewarding behavior and many neurotransmitters and neuropeptides play an important role in mediation of sexual performance, motivation and reward. The hypothalamic neuropeptide orexin has been shown play a key role in reward associated with food and drugs of abuse, but the role of this neuropeptide in control of sexual performance, motivation and reward is currently unclear. First, it was shown that orexin neurons in the hypothalamus are activated during sexual performance and reward. Next, using cell specific lesions of orexin neurons it was demonstrated that orexin is involved in arousal and anxiety, …

How Prostate Cancer Patients Cope With The Effects Of Diagnosis And Treatment: Development Of The Effects Of Prostate Cancer Coping Strategies Scale, Christopher Sharpley, Vicki Bitsika, David Christie

Vicki Bitsika

Background: The elevated anxiety and depression experienced by prostate cancer (PCa) patients can impair their decision-making as well as decrease their psychological well-being and weaken relationships with partner and family. Although standardised assessment models exist for identifying the symptoms of anxiety or depression, relatively little attention has been given to identifying the causal antecedents that PCa patients encounter and that may lead to anxiety or depression, nor their own attempts to cope with those antecedents. This study investigated the coping strategies used by a sample of PCa patients in response to the specific stressors and lifestyle changes that arose from …

Variability In Anxiety And Depression Over Time Following Diagnosis In Patients With Prostate Cancer, Christoper Sharpley, David Christie, Vicki Bitsika

Vicki Bitsika

To determine the presence and nature of variability in anxiety and depression in patients with prostate cancer (PCa) over 3 years following diagnosis, 442 patients with PCa completed standardized anxiety and depression inventories via survey between 1 and 36 months after receiving their initial diagnosis. Data were analyzed from a series of 3-month cohorts, and results indicated that total scores and incidence of clinically significant anxiety and depression varied over time, but that this variability was restricted to specific subfactors of anxiety and depression. Provision of effective psychological treatment to patients with PCa is discussed.

Understanding The Functionality Of Depression Among Australian Breast Cancer Patients: Implications For Cognitive And Behavioural Interventions, Christopher Sharpley, Vicki Bitsika, David Christie

Vicki Bitsika

Background: Depression in breast cancer (BCa) patients can reduce quality of life, relationships and treatment compliance, thus constituting a major target for cognitive behavioural (CBT) interventions. Although CBT treatments, which are built upon consideration of the roles of antecedents and consequences for depressive behaviour, are effective, the nature of those antecedents which trigger depression among BCa patients has received relatively little attention.

Purpose: Hypotheses were (1) to determine if BCa patients were experiencing either or both of punishment type I and II and (2) to identify if these aspects of punishment were related to overall depression.

Method: Two hundred fifty-three …

How Is Resilience Associated With Anxiety And Depression? Analysis Of Factor Score Interactions Within A Homogeneous Sample, Vicki Bitsika, Christopher Sharpley, Kylie Peters

Vicki Bitsika

Aim: To explore the ways in which resilience is associated with anxiety and depression within a homogenous sample.Methods: 401 Australian university students completed the Connor-Davidson Resilience Scale and the Zung SelfratingAnxiety and Depression Scales. Factor scores from the resilience scale were regressed against total anxiety and depression scores, combined anxiety-depression scores and the underlying factors of the combined anxiety-depression construct.Results: Self-confidence and optimism were most strongly negatively associated with anxiety and depression, followed by being decisive and solution-focussed and seeking challenges, having a strong purpose and being persistent, although different combinations of factors predicted anxiety than did depression. Spiritual beliefs …

Psychosocial Vulnerabilities To Depression After Acute Coronary Syndrome: The Pivotal Role Of Rumination In Predicting And Maintaining Depression, Ellen-Ge Denton, Nina Rieckmann, Karina W. Davidson, William F. Chaplin

Publications and Research

Psychosocial vulnerabilities may predispose individuals to develop depression after a significant life stressor, such as an acute coronary syndrome (ACS).The aims are (1) to examine the interrelations among vulnerabilities, and their relation with changes in depressive symptoms 3 months after ACS, (2) to prospectively assess whether rumination interacts with other vulnerabilities as a predictor of later depressive symptoms, and (3) to examine how these relations differ between post-ACS patients who meet diagnostic criteria for depression at baseline versus patients who do not. Within 1week after hospitalization for ACS, and again after 3 months, 387 patients (41% female, 79.6% white, mean …

Primary Care Behavioral Health Consultation Reduces Depression Levels Among Mood-Disordered Patients, Bill Mcfeature, Thomas W. Pierce

Journal of Health Disparities Research and Practice

The purpose of this study was to examine the effects of behavioral health consultative services on levels of depressive symptoms in patients diagnosed with a mood disorder. Two-hundred fifty-one patients with a form of mood disorder completed the PHQ-9 screening tool for depression both before and after a treatment period lasting an average of three months, during which patients received behavioral health consultation services. Results showed that 49.8% of patients participating in this integrated behavioral health care program experienced improvements of at least 50% in PHQ-9 scores from pre- to post-test. Improvements in PHQ-9 scores of at least a five …

Serotonin Transporter And Gaba(A) Alpha 6 Receptor Variants Are Associated With Neuroticism, Srijan Sen, Sandra Villafuerte, Randolph Nesse, Scott F. Stoltenberg, Jeffrey Hopcian, Lillian Gleiberman, Alan Weder, Margit Burmeister

Scott F. Stoltenberg

Background: A tendency to experience negative affect, as measured by the neuroticism component of the Neuroticism, Extraversion, and Openness Personality Inventory (NEO-PI), is a trait marker for major depression. Epidemiologic studies indicate a strong genetic component, but to date few specific genetic variants have been definitively implicated. A serotonin transporter promoter polymorphism (5-HTTLPR) has been extensively studied in neuroticism and several psychiatric disorders, with inconclusive results. A GABA(A) receptor α6 subunit variant (Pro385Ser) has been associated with alcohol-related traits but has not been studied in neuroticism or depression. Methods: A total of 384 subjects who completed the NEO-PI were genotyped …

Predictors Of Depression For Low-Income African American Single Mothers, Jennifer Hatcher, Mary K. Rayens, Ann R. Peden, Lynne A. Hall

Journal of Health Disparities Research and Practice

Purpose: To test a model of predictors of depression in low-income single African American mothers. Design: Secondary analysis of existing data collected as part of a study of women at risk for clinical depression.

Methods: Cross sectional secondary data analysis of a study of low-income African American single mothers with children ages 2-6. Path analysis was used to test a model of the potential mediating role of negative thinking. It was hypothesized that negative thinking mediates the effects of chronic stressors, general health status, and self-esteem on depressive symptoms

Finding: Negative thinking mediated the relationships of chronic stressors and self-esteem …

Novelty Reward As A Measure Of Anhedonia, Rick A. Bevins, Joyce Besheer

Rick A. Bevins

A decrease in sensitivity to pleasurable stimuli, anhedonia, is a major symptom of depression in humans. Several animal models have been developed to simulate this symptom (e.g. drug withdrawal, learned helplessness) using reward-sensitive procedures such as intracranial self-stimulation and progressive ratio responding as a measure of reward function. Recently, we introduced the use of another procedure, novel-object place conditioning in rats, to measure reward function in an associative learning situation. Withdrawal from chronic nicotine blocked a place preference conditioned by access to novel objects. This blockade was not due to impairment of object interaction, general activity, novelty detection, environmental familiarization, …

Depression And Evangelical Christian Spirituality: Exploring A Theoretical Model, Katheryn Jane Klukow

Masters Theses and Doctoral Dissertations

While religious involvement, particularly intrinsic religiosity or spirituality, has shown a significant inverse relationship with depression, this relationship is complex and multifaceted and several decades of study have yet to reveal a clear pattern. This work is a survey of the current research on the etiology and symptomology of depression and its interaction with spirituality. This work is testing a new model that views the effects of depression on spirituality as a function of an individual’s perceived relationship with God. A survey was distributed to a sample of 135 evangelical Christians. Depressed persons made up approximately 16% of the sample. …

Risk Factors For Depression Among Married Women Belonging To Higher And Lower Socioeconomic Status In Karachi, Pakistan, Saima Zainab, Zafar Fatmi, Ambreen Kazi

Community Health Sciences

OBJECTIVES: To determine the risk factors for depression among married women belonging to low and high socioeconomic status in Karachi.METHODS: The study design was cross-sectional. The data was collected from 128 adult married women during July to September 2005. The women were selected from different socioeconomic classes from five hospitals/institutes in Karachi. The Centre for Epidemiology Studies-Depression (CES-D) scale was used to screen the subjects for depression and a structured questionnaire was used to identify the factors for depression.RESULT: According to the CES-D scale, 65% of the study population was found to be depressed. Among the women from high socioeconomic …

Preventing Mental Distress In The Military, Charles Nelson, Kate St. Cyr, Bradley Corbett, Elisa Hurley, Shannon Gifford, Jon D. Elhaid, J. Donald Richardson

RDC@Western Research Highlights

No abstract provided.

Explaining The Longitudinal Association Between Puberty And Depression: Sex Differences In The Mediating Effects Of Peer Stress, Colleen S. Conley, Karen D. Rudolph, Fred B. Bryant

Psychology: Faculty Publications and Other Works

This research investigated whether exposure to peer stress serves as one pathway through which pubertal development contributes to depression over time, differentially for girls and boys. Youth (N = 149; 9.6–14.8 years) and their caregivers provided information at two waves, 1 year apart, on puberty (Wave 1), peer stress (occurring between Waves 1 and 2), and depression (Waves 1 and 2). Structural equation modeling analyses examined sex differences in the extent to which peer stress mediated the impact of pubertal status and timing on subsequent depression (i.e., tests of moderated mediation). Significant sex-moderated mediation was found for both pubertal status …

Perceived Discrimination And Depression As It Relates To Nativity Status Of Students From Immigrant Backgrounds, Melissa Huey

Dissertations and Theses

"Research has found that foreign born immigrants' have better mental and physical health, as well as higher levels of academic achievement, than native born individuals from immigrant families (Vega, et. al., 2004). There is some evidence that perceived discrimination could be a possible explanation for these nativity differences (Juang & Cookston, 2009). The current study tested the hypothesis that native born individuals from immigrant backgrounds will have higher levels of depression than their foreign born counterparts and that native born respondents will report higher levels of perceived discrimination than foreign born. The study also tested whether perceived discrimination mediates the …