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Description
Realistic or unrealistic expectations are formed prior to having the child and can affect the relationship quality of the mother and infant at 3 months and the reported maternal stress levels at 6 months. Violated expectations can either positively or negatively change the course of the relationship quality and stress levels. To test the nature of such relations, a series of regression analyses and one-way ANOVAs examined the associations between maternal expectations (and violations of maternal expectations) and maternal stress at 6 months. Further, mother-infant relationship quality was examined as a possible mediator of this association. Results indicated that prenatal maternal expectations and maternal expectations at 6 weeks were significantly correlated with maternal stress at 6 months. The higher the maternal expectations, the lower the maternal stress. There were no significant relations discovered between maternal expectations and relationship quality or relationship quality and maternal stress. Relationship quality does not mediate the relation of maternal expectations (or violated maternal expectations) and maternal stress. Violated maternal expectations that moved towards realistic did achieve better relationship quality scores, but maternal stress scores stayed consistent no matter the direction of the change.
ContributorsFrancis, Caitlyn Noelle (Author) / Crnic, Keith (Thesis director) / Glenberg, Arthur (Committee member) / Umaña-Taylor, Adriana (Committee member) / Barrett, The Honors College (Contributor) / T. Denny Sanford School of Social and Family Dynamics (Contributor) / Department of Psychology (Contributor)
Created2014-05
Description
One of the nation's most pressing health related issues is that of healthy diet and proper nutrition. Because much research has shown that many Americans are in poor health or are at risk to become so due to poor diet and nutrition, understanding the psychological factors of a healthy diet or lack thereof is of the utmost importance. In order to understand the adoption and maintenance of health related behaviors, the link between intentions and behaviors must be evaluated. Of current health behavior models, the model utilized in this study was the Health Action Process Approach model (HAPA), which addressed this "intention-behavior gap." The HAPA model proposes that planning is the key mediator of the link between intentions and behavior. The current research was performed in two stages. The first stage evaluated the psychosocial constructs of the HAPA model, and their predictive utility for current diet and the second stage evaluated a planning-based intervention that aimed to increase proper nutrition in college-aged women. All HAPA constructs were found to be significantly correlated with one another, and planning was found to significantly and fully mediate the link between intention and healthy diet. The intervention did not lead to an increase in healthy diet relative to a standard-of-care control, although all participants across conditions reported increased intention, self-efficacy, and healthy diet from pre-test to follow-up.
ContributorsWells, Jordan Rebecca (Author) / Aiken, Leona (Thesis director) / Glenberg, Arthur (Committee member) / Hansen, Whitney (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor)
Created2013-12
Description
Recent research on alcohol use among LGB young adults indicates that sexual minority youth are at increased risk relative to their heterosexual peers. One possible contributing factor is that religiosity fails to provide the significant protection for LGB youth that it has been demonstrated to provide in general population samples. Although recent studies provide some support for this hypothesis, there is little research seeking to understand the reasons that religiosity may fail to protect against heavy drinking among LGB youth. The current study attempted to address this gap by examining relations among religiosity, age of self-identification, and alcohol use in a sample of 103 young adults self identified as lesbian, gay, or bisexual. Using multiple regression, we found that religiosity had an indirect effect on alcohol use operating through age of identification as LGB. Higher religiosity was associated with a later age of self-identification, which in turn, predicted greater increases in alcohol use among LGB youth during the transition from high school through college. Exploratory analyses found that gender significantly moderated the influence of age of self-identification on alcohol use such that a later age of self-identification was a risk factor for increased drinking for women, but not for men. The findings have important implications for understanding complex relations between religiosity and alcohol use among LGB youth. In addition, the findings may inform the development of religious support groups for LGB youth that will allow them to experience the benefits of religious involvement that heterosexual youth experience.
ContributorsOng, Thai Quang (Author) / Corbin, William (Thesis director) / Glenberg, Arthur (Committee member) / Grzanka, Patrick (Committee member) / Barrett, The Honors College (Contributor) / T. Denny Sanford School of Social and Family Dynamics (Contributor) / Department of Psychology (Contributor)
Created2013-12
Description
Humans require sufficient social understanding and connectedness to thrive (Baumeister & Leary, 1995). The current study evaluates the effectiveness of the Social Intelligence Institute's training program pilot. At a middle school in Phoenix, Arizona, students in a 7th and 8th grade class participated in this pilot program during the spring of 2013. Pre- and post-test questionnaires administered indicated changes in participants reported measures of Perspective Taking, Empathetic Concern, Interpersonal Expectations, and Relationship Self-Efficacy. The program consists of seven modules, each with several sessions, including instructional videos with reflection questions and class discussions. It was predicted that there would be a significant increase in mean scores for the dependent variables in the questionnaire mentioned above from the pre-test to the post-test. However, the null hypotheses were not rejected; statistical significance in t-tests of the measured variables were not met. Yet, the program was more effective for 8th graders than for 7th graders for Perspective Taking. This study of the SI pilot program demonstrates areas of improvement and provides support for wider implementation in the future.
ContributorsBailey, Jonathan Donald (Author) / Zautra, Alex (Thesis director) / Glenberg, Arthur (Committee member) / Short, Robert (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor)
Created2013-12
Description
This study examined the relation between Religiosity (a motivational system) and Working Memory Capacity (a cognitive system) to determine how they interact to promote goal-directed behavior. Participants completed a religiosity questionnaire and engaged in a battery of tasks that were used to assess their Working Memory Capacity (WMC) and overall ability to maintain goal-directed behavior. The Stroop task was used to examine the participants' ability to maintain goals in the face of interference. It was predicted that religiosity and WMC would be inversely related and that when we controlled for religiosity, WMC would be the only significant predictor of Stroop performance. Furthermore, we hypothesized that religiosity and Stoop would be inversely related, whereas WMC and Stroop would be positively correlated with one another. Religiosity and Stroop performance were each divided into three different components. Religiosity was divided into: Intrinsic Motivation, Extrinsic Motivation, and CARMA. Stroop Performance was measured through Stroop Accuracy, the Stroop Effect, and Post-Error Slowing. The results of our study supported each of our hypotheses. These findings demonstrated that there is a cognitive process underlying motivational systems, such as religion, which affect an individual's ability to sustain goal-directed behavior.
ContributorsFontes, Alejandra Maria (Author) / Brewer, Gene (Thesis director) / Glenberg, Arthur (Committee member) / Cohen, Adam (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / T. Denny Sanford School of Social and Family Dynamics (Contributor)
Created2013-12
Description
Increasing vegetable consumption among the adult population is a major goal, as the health benefits of vegetables can decrease one's risk of heart disease, cancer, diabetes, and obesity. The current study examined a potential strategy to increase consumption of vegetables by pairing them with a dip and a TV distraction. Based upon results of previous, similar research studies (Blass et al., 2006; Fisher et al., 2012; Johnston et al., 2012; Mittal, Stevenson, Oaten, & Miller, 2011), we hypothesized that eating vegetables with dip or while distracted with a television sitcom would result in increased consumption. We also hypothesized that both dip and a distraction together will synergistically increase vegetable consumption. A total of 126 college students were assigned to one of four conditions: eating vegetables with dip, with dip and a television distractor, with only a television distractor, or without either dip or a television distractor. While television had no significant influence on vegetable consumption, pairing vegetables with a dip significantly increased consumption of vegetables. Pairing vegetables with a dip may prove to be an effective strategy for increasing vegetable intake in the adult population.
ContributorsBeagley, Marin Caroline (Author) / Phillips, Elizabeth Capaldi (Thesis director) / Glenberg, Arthur (Committee member) / Bajaj, Devina (Committee member) / Barrett, The Honors College (Contributor) / School of Social Transformation (Contributor) / Department of Psychology (Contributor)
Created2013-12
Description
Head's up displays (HUD) are now emerging into the technological market that is used in various functionalities, but most of all, they are expensive. An alternative method to find cheaper ways to develop a head's up display is researched and implemented. The HUD is equipped with a processor and projector. Both of these hardware components encompasses most part of the HUD along with some manipulation of the material that the image is projected on. In this study, the software and the optics of the HUD will be explored and lastly, taking into full consideration on the future work that can be done to make improvements on the HUD.
ContributorsKim, Lilian SA (Author) / Goryll, Michael (Thesis director) / Zhang, Yong-Hang (Committee member) / Barrett, The Honors College (Contributor) / Electrical Engineering Program (Contributor)
Created2014-05
Description
The Metal Semiconductor Field Effect Transistor (MESFET) has high potential to enter analog and RF applications due to their high breakdown voltage and switching frequency characteristics. These MESFET devices could allow for high voltage analog circuits to be integrated with low voltage digital circuits on a single chip in an extremely cost effective way. Higher integration leads to electronics with increased functionality and a smaller finished product. The MESFETs are designed in-house by the research group led by Dr. Trevor Thornton. The layouts are then sent to multi-project wafer (MPW) integrated circuit foundry companies, such as the Metal Oxide Semiconductor Implementation Service (MOSIS) to be fabricated. Once returned, the electrical characteristics of the devices are measured. The MESFET has been implemented in various applications by the research group, including the low dropout linear regulator (LDO) and RF power amplifier. An advantage of the MESFET is that it can function in extreme environments such as space, allowing for complex electrical systems to continue functioning properly where traditional transistors would fail.
ContributorsKam, Jason (Author) / Thornton, Trevor (Thesis director) / Goryll, Michael (Committee member) / Barrett, The Honors College (Contributor) / Electrical Engineering Program (Contributor)
Created2015-05
Description
This project, which consists of a review article and an applied creative project, proposes mirror neurons as being a physiological mechanism for motor imagery. The review article highlights similarities between motor imagery research and research on mirror neurons. The research is roughly divided into three types of studies: neuroimaging studies, transcranial magnetic stimulation (TMS) and electromyography (EMG) studies, and electroencephalography (EEG) studies. The review also discusses the associative hypothesis of mirror neuron origin as support for the hypothesis and concludes with an assessment of conflicting research and the limitations of the hypothesis. The applied creative project is an instructional brochure, aimed at anyone who teaches motor skills, such as dance teachers or sports coaches. The brochure takes the academic content of the review and presents it in a visually pleasing, reader-friendly fashion in an effort to educate the intended audience and make the research more accessible. The brochure also prescribes research-based suggestions for how to use motor imagery during teaching sessions and how to get the best benefits from it.
ContributorsNgai, Valerie Christina (Author) / Hoffner, Kristin (Thesis director) / Glenberg, Arthur (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor) / Department of Psychology (Contributor)
Created2015-05
Description
Electronic devices are gaining an increasing market share in the medical field. Medical devices are becoming more sophisticated, and encompassing more applications. Unlike consumer electronics, medical devices have far more limitations when it comes to area, power and most importantly reliability. The medical devices industry has recently seen the advantages of using Flash memory instead of Read Only Memory (ROM) for firmware storage, and in some cases to replace Electrically Programmable Read Only Memories (EEPROMs) in medical devices for frequent data storage. There are direct advantages to using Flash memory instead of Read Only Memory, most importantly the fact that firmware can be rewritten along the development cycle and in the field. However, Flash technology requires high voltage circuitry that makes it harder to integrate into low power devices. There have been a lot of advances in Non-Volatile Memory (NVM) technologies, and many Flash rivals are starting to gain attention. The purpose of this thesis is to evaluate these new technologies against Flash to determine the feasibility as well as the advantages of each technology. The focus is on embedded memory in a medical device micro-controller and application specific integrated circuits (ASIC). A behavioral model of a Programmable Metallization Cell (PMC) was used to simulate the behavior and determine the advantages of using PMC technology versus flash. When compared to flash test data, PMC based embedded memory showed a reduction in power consumption by many orders of magnitude. Analysis showed that an approximated 20% device longevity increase can be achieved by using embedded PMC technology.
ContributorsHag, Eslam E (Author) / Kozicki, Michael N (Thesis advisor) / Schroder, Dieter K. (Committee member) / Goryll, Michael (Committee member) / Arizona State University (Publisher)
Created2010