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- Genre: Masters Thesis
- Creators: Arizona State University
- Member of: ASU Electronic Theses and Dissertations
Description
There is a lack of music therapy services for college students who have problems with depression and/or anxiety. Even among universities and colleges that offer music therapy degrees, there are no known programs offering music therapy to the institution's students. Female college students are particularly vulnerable to depression and anxiety symptoms compared to their male counterparts. Many students who experience mental health problems do not receive treatment, because of lack of knowledge, lack of services, or refusal of treatment. Music therapy is proposed as a reliable and valid complement or even an alternative to traditional counseling and pharmacotherapy because of the appeal of music to young women and the potential for a music therapy group to help isolated students form supportive networks. The present study recruited 14 female university students to participate in a randomized controlled trial of short-term group music therapy to address symptoms of depression and anxiety. The students were randomly divided into either the treatment group or the control group. Over 4 weeks, each group completed surveys related to depression and anxiety. Results indicate that the treatment group's depression and anxiety scores gradually decreased over the span of the treatment protocol. The control group showed either maintenance or slight worsening of depression and anxiety scores. Although none of the results were statistically significant, the general trend indicates that group music therapy was beneficial for the students. A qualitative analysis was also conducted for the treatment group. Common themes were financial concerns, relationship problems, loneliness, and time management/academic stress. All participants indicated that they benefited from the sessions. The group progressed in its cohesion and the participants bonded to the extent that they formed a supportive network which lasted beyond the end of the protocol. The results of this study are by no means conclusive, but do indicate that colleges with music therapy degree programs should consider adding music therapy services for their general student bodies.
ContributorsAshton, Barbara (Author) / Crowe, Barbara J. (Thesis advisor) / Rio, Robin (Committee member) / Davis, Mary (Committee member) / Arizona State University (Publisher)
Created2013
Description
Although recent studies have report that many stressors and strains (i.e., financial, educational and psychological) arise from being an adolescent mother, whether adolescent motherhood influences delinquency remains an unanswered empirical question. Using data from a nationally representative sample of adolescents (National Longitudinal Study of Adolescent Health), the current study examines the relationship between motherhood, depression, and delinquency (N = 676). The sample is comprised of solely females between ages 13 and 21-years-old. The female subjects were categorized either as an adolescent mothers, non-mother adolescents, or adult mothers. This study tests the following hypotheses: (1) adolescent mothers are prone to involvement in delinquent behavior; and, (2) adolescent mothers who experience depression are at greater risk of delinquent behavior. The results indicate that there is a decrease in delinquency among adolescent mothers who do not experience depression. However, there is an increase in delinquency among adolescent mothers who experience depression.
ContributorsWalker, D'Andre (Author) / Holtfreter, Kristy (Thesis advisor) / Reisig, Micheal (Thesis advisor) / Burt, Callie (Committee member) / Arizona State University (Publisher)
Created2014
Description
Previous studies have established a link between parenting style (e.g. authoritarian, authoritative, permissive) and depression in children and adolescents. Parenting factors are also implicated in the development of emotion regulation. There is a gap in the literature, however, concerning perceptions of parenting in relation to adult depression. The current study examined the effect of parenting on reported adult depressive symptoms. Of interest was the role of emotion regulation strategies in this relationship. Participants were recruited through Amazon Mechanical Turk, and the sample consisted of 302 adults (125 males, 177 females) ranging in age from 18 to 65. Measures of how participants were parented by their mothers and fathers, emotion regulation strategies most frequently utilized, and current depressive symptoms were collected using an online survey. The emotion regulation strategy, positive reappraisal, was found to moderate the relation between maternal authoritative parenting and depression. Permissive parenting was also significantly predictive of depression, but catastrophizing fully mediated only the relation between maternal permissive parenting and depressive symptoms. Authoritarian parenting was unrelated to depression and emotion regulation in this study. The findings of this study indicate that the effects of how an individual was parented may persist into adulthood. Implications of these findings and future directions for further research are discussed.
ContributorsHuisstede, Lauren van (Author) / Miller, Paul A. (Thesis advisor) / Tinsley, Barbara (Committee member) / Roberts, Nicole A. (Committee member) / Arizona State University (Publisher)
Created2013
Description
Efficiency of components is an ever increasing area of importance to portable applications, where a finite battery means finite operating time. Higher efficiency devices need to be designed that don't compromise on the performance that the consumer has come to expect. Class D amplifiers deliver on the goal of increased efficiency, but at the cost of distortion. Class AB amplifiers have low efficiency, but high linearity. By modulating the supply voltage of a Class AB amplifier to make a Class H amplifier, the efficiency can increase while still maintaining the Class AB level of linearity. A 92dB Power Supply Rejection Ratio (PSRR) Class AB amplifier and a Class H amplifier were designed in a 0.24um process for portable audio applications. Using a multiphase buck converter increased the efficiency of the Class H amplifier while still maintaining a fast response time to respond to audio frequencies. The Class H amplifier had an efficiency above the Class AB amplifier by 5-7% from 5-30mW of output power without affecting the total harmonic distortion (THD) at the design specifications. The Class H amplifier design met all design specifications and showed performance comparable to the designed Class AB amplifier across 1kHz-20kHz and 0.01mW-30mW. The Class H design was able to output 30mW into 16Ohms without any increase in THD. This design shows that Class H amplifiers merit more research into their potential for increasing efficiency of audio amplifiers and that even simple designs can give significant increases in efficiency without compromising linearity.
ContributorsPeterson, Cory (Author) / Bakkaloglu, Bertan (Thesis advisor) / Barnaby, Hugh (Committee member) / Kiaei, Sayfe (Committee member) / Arizona State University (Publisher)
Created2013
Description
Depressive disorders are common among the general populations but are present at an even higher rate among college students. Some research suggests that new stressors during the transition to college may place young adults at increased risk of depressive disorders. In addition, depression in college students has been linked to a variety of risky behaviors such as alcohol use and risky sexual activity. Fortunately, research suggests that religiosity may act as a buffer and lead to lower levels of depressive symptoms and risky behavior. Current research has not adequately examined the relationship between religiosity, depression, and risky behavior among college students. In this study, depressive symptoms were measured using the 20-item Center for Epidemiological Studies Depression scale, while risky behaviors were measured using the section on risky sexual behavior from the Youth Risk Behavior Surveillance survey and the section on alcohol consumption from the Behavioral Risk Factor Surveillance System survey, both developed by the Centers for Disease Control and Prevention. Four questions frequently used in literature to measure critical behaviors and attitudes were used to assess participants' religiosity. It was predicted that engagement in risky behaviors would be associated with higher levels of depressive symptoms while increased religiosity would be associated with lower levels. Additionally, increased religiosity would be associated with lower levels of engagement in risky behavior. Multiple regression analyses revealed that risky behavior were not significantly associated with higher depressive symptoms, while higher church attendance was associated with lower depressive symptoms. Although not considered a risky behavior, ever being forced to have sex was associated with higher depressive symptoms. Linear regression analyses revealed that increased religiosity was associated with increased engagement in risky behavior. These findings suggest that while depressive symptoms and risky behaviors are prevalent among college students, religiosity may act as a buffer and lead to lower levels of depression and risky behavior. Limitations, implications, and future research are discussed.
ContributorsLafarga, Derek Grady (Author) / Vargas, Perla A (Thesis advisor) / Hall, Deborah (Committee member) / Roberts, Nicole (Committee member) / Arizona State University (Publisher)
Created2014
Description
Other studies have previously demonstrated that perceived stress and maladaptive stress management can lead to harmful outcomes including depression, morbidity, and mortality. College students (especially freshmen) have more difficulty dealing with stress, which can increase their susceptibility to engage in high risk behaviors. The importance of conducting this research is to discover the effects that perceived stress levels may have on depression outcomes in college students, and to evaluate the influence of health related behaviors on this relationship. This study used a retrospective cross-sectional correlational design to examine correlations between perceived stress, physical activity, and other health behaviors on clinical and perceived depression in college students. A random sample of 20,000 students was drawn from 62,476 students enrolled at Arizona State University (ASU). Participants included 2,238 students who volunteered to take the American College Health Association-National College Health Assessment (ACHA-NCHA) in spring 2009. Supplemental questions for ASU students were developed by ASU Wellness and administered as a part of the ACHA-NCHA II. The university sent an invitation email, wherein students were directed through a hyperlink to the survey website. ACHA provided institutional survey data in an SPSS file for analysis. The data were evaluated with Spearman Rho Correlation Analysis and Wilcoxon-Mann-Whitney test. There were more female participants (n = 580) than males (n = 483), both averaged 23 years of age. Men had greater height, weight, and body mass index than females, all were significant mean differences. There were more significant correlations between health factors and having perceived depression than with having real or diagnosed depression. Logistic regression showed that out of all variables and behaviors studied, only high levels of stress, poor general health, substance use, and gender (female) resulted in significant odds in predicting that a participant would be in one of the depression categories. This research suggests that addressing these factors may be important to prevent and reduce depression among college students. This study provides empirical evidence that there is a significant relationship between perceived stress and depression among college students, and that health behaviors such as substance abuse have a negative mediating effect on this relationship.
ContributorsSkipworth, Katherine (Author) / Swan, Pamela (Thesis advisor) / Woodruff, Larry (Committee member) / Moses, Karen (Committee member) / Arizona State University (Publisher)
Created2011
Description
ABSTRACT Post-Traumatic Stress Disorder (PTSD), depression, and insomnia are prevalent among United States (US) military veterans. This study investigates whether Brain Boosters, a new cognitive enhancement group therapy, improves symptoms of PTSD, depression, and insomnia among veterans completing the groups. The study population includes 64 US military veterans treated in the setting of the Veterans Affairs (VA) Health Care System in Phoenix, AZ. Group members were US military veterans, age 22 to 87 (mean age=53.47), who had served in or after World War II (WWII), who sought mental health care at the Phoenix VA from 2007 through 2011. Participants were treated with Brain Boosters therapy. They completed measures of mental-health related symptoms before and after this therapy. Participants were assessed pre and post group with the PTSD Checklist for military personnel (PCL-M), the Patient Health Questionnaire (PHQ-9; a measure of depression symptoms), and the Insomnia Severity Index (ISI). Statistical analyses were done with paired samples t-tests and McNemar's tests, using SPSS. The hypotheses were that symptoms of PTSD, depression, and insomnia would show statistically significant improvement with Brain Boosters therapy. Results supported the hypotheses that symptoms of PTSD and depression would improve significantly. Insomnia did not show significant improvement. The results showed the mean PCL-M score was 54.84 before Brain Boosters therapy and 51.35 after (p= 0.008). The mean PHQ-9 score was 15.21 before Brain Boosters therapy and 13.05 after (p= 0.002). The mean ISI score was 15.98 before Brain Boosters Therapy and 14.46 after (p= 0.056). Although this is a nonrandom, uncontrolled trial, findings nevertheless suggest that Brain Boosters may be an effective therapy to reduce PTSD symptom severity and depression symptom severity. This may be especially important for veterans seeking alternatives to pharmacological intervention or traditional therapeutic interventions.
ContributorsWalter, Christina M (Author) / Roberts, Nicole A. (Thesis advisor) / Burleson, Mary H. (Committee member) / Miller, Paul (Committee member) / Arizona State University (Publisher)
Created2012
Description
Class D Amplifiers are widely used in portable systems such as mobile phones to achieve high efficiency. The demands of portable electronics for low power consumption to extend battery life and reduce heat dissipation mandate efficient, high-performance audio amplifiers. The high efficiency of Class D amplifiers (CDAs) makes them particularly attractive for portable applications. The Digital class D amplifier is an interesting solution to increase the efficiency of embedded systems. However, this solution is not good enough in terms of PWM stage linearity and power supply rejection. An efficient control is needed to correct the error sources in order to get a high fidelity sound quality in the whole audio range of frequencies. A fundamental analysis on various error sources due to non idealities in the power stage have been discussed here with key focus on Power supply perturbations driving the Power stage of a Class D Audio Amplifier. Two types of closed loop Digital Class D architecture for PSRR improvement have been proposed and modeled. Double sided uniform sampling modulation has been used. One of the architecture uses feedback around the power stage and the second architecture uses feedback into digital domain. Simulation & experimental results confirm that the closed loop PSRR & PS-IMD improve by around 30-40 dB and 25 dB respectively.
ContributorsChakraborty, Bijeta (Author) / Bakkaloglu, Bertan (Thesis advisor) / Garrity, Douglas (Committee member) / Ozev, Sule (Committee member) / Arizona State University (Publisher)
Created2012
Description
The research on female juvenile gang members is limited in scope and research has not yet examined mental health issues in this population. This study examines the case histories of 127 female juvenile gang members who were arrested by the Florida Department of Juvenile Justice. To add to the limited gender-specific research on female juvenile gang members, data are presented regarding this population's mental health problems, childhood maltreatment, substance abuse problems, age of contact with the juvenile justice system, and other factors salient to female juvenile gang members' prevention, treatment, and intervention needs. Female juvenile gang members who had a mental health diagnosis were significantly more likely to report childhood maltreatment. Female juvenile gang members who were younger at their age of first arrest were significantly more likely to report chronic substance use. Clinical levels of anger-irritability and depression-anxiety were found for approximately half of female juvenile gang members and suicide ideation was found for approximately one fourth. These findings have important implications for practitioners and gender-specific prevention, intervention, and treatment programs targeted specifically for female juvenile gang members.
ContributorsDowning, Leigh Anne (Author) / Roe-Sepowitz, Dominique (Thesis advisor) / Anthony, Elizabeth (Committee member) / Jackson, Kelly (Committee member) / Arizona State University (Publisher)
Created2012
Description
Anxiety and depression are among the most prevalent disorders in youth, with prevalence rates ranging from 15% to 25% for anxiety and 5% to 14% for depression. Anxiety and depressive disorders cause significant impairment, fail to spontaneously remit, and have been prospectively linked to problematic substance use and legal problems in adulthood. These disorders often share a high-degree of comorbidity in both clinical and community samples, with anxiety disorders typically preceding the onset of depression. Given the nature and consequences of anxiety and depressive disorders, a plethora of treatment and preventative interventions have been developed and tested with data showing significant pre to post to follow-up reductions in anxiety and depressive symptoms. However, little is known about the mediators by which these interventions achieve their effects. To address this gap in the literature, the present thesis study combined meta-analytic methods and path analysis to evaluate the effects of youth anxiety and depression interventions on outcomes and four theory-driven mediators using data from 55 randomized controlled trials (N = 11,413). The mediators included: (1) information-processing biases, (2) coping strategies, (3) social competence, and (4) physiological hyperarousal. Meta-analytic results showed that treatment and preventative interventions reliably produced moderate effect sizes on outcomes and three of the four mediators (information-processing biases, coping strategies, social competence). Most importantly, findings from the path analysis showed that changes in information-processing biases and coping strategies consistently mediated changes in outcomes for anxiety and depression at both levels of intervention, whereas gains in social competence and reductions in physiological hyperarousal did not emerge as significant mediators. Knowledge of the mediators underlying intervention effects is important because they can refine testable models of treatment and prevention efforts and identify which anxiety and depression components need to be packaged or strengthened to maximize intervention effects. Allocating additional resources to significant mediators has the potential to reduce costs associated with adopting and implementing evidence-based interventions and improve dissemination and sustainability in real-world settings, thus setting the stage to be more readily integrated into clinical and non-clinical settings on a large scale.
ContributorsStoll, Ryan (Author) / Pina, Armando A (Thesis advisor) / MacKinnon, David (Committee member) / Knight, George (Committee member) / Arizona State University (Publisher)
Created2015