Matching Items (42)
Description
Appearance ideals are standards of beauty imposed by a culture or society, that are unrealistic and impossible to achieve. Research documents the existence of three appearance ideals, thin, muscular and hourglass ideals. The thin ideal is the pursuit of a very thin and low body weight. The muscular ideal is the pursuit of a toned and fit body. The hourglass ideal is the pursuit of a shapely body with bigger breasts and hips/buttocks than waist. These ideals are associated with disordered eating. However, no current study has examined the prevalence of all three ideals, or how the combination of ideals relates to dietary restraint, one example of a disordered eating behavior. This study was conducted on 505 undergraduate women at Arizona State University, who were completing research credit for a psychology course. The women participated in an online survey that assessed their demographics, each ideal, and dietary restraint. Results show that all combinations of ideals exist. Specifically, 41.5% of the sample endorse high levels of all three ideals, while 12.5% report thin and muscular ideals, 9.5% report thin and hourglass ideals, 9.9% report hourglass and muscular ideals, 8.4% report low levels of all three ideals, 6.4% report muscular ideal only, 6.4% report hourglass ideal only, and 5.6% report thin ideal only. Endorsing more than one ideal significantly associated with dietary restraint. Findings fulfill an important gap in the literature, suggest future directions for research, and have important clinical implications.
ContributorsByrd, Jordyn (Author) / Perez, Marisol (Thesis director) / Hernández, Juan (Committee member) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
This study was designed to learn what students call various forms of cannabis. A survey was created with questions designed to understand students' knowledge of types of cannabis, methods of use, and potency. An introduction and methods section of the research paper is included.
ContributorsCollins, Ryleigh Anne (Author) / Meier, Madeline (Thesis director) / Perez, Marisol (Committee member) / School of Molecular Sciences (Contributor) / School of Life Sciences (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
This study assessed the effects of running an eating prevention program on body image satisfaction/behavior and the leadership skills of collegiate women. The sample included a group of 43 undergraduate women who voluntarily chose to become peer-educators in the eating prevention program called the Body Project. Self-report questionnaires evaluating both the preoccupation with personal body image and general leadership skills were distributed and collected electronically. The results were analyzed to determine that being a peer leader in the Body project did not increase eating disorder symptoms but actually decreased the symptoms. It was also determined that being a peer educator had no effect on leadership skills. Therefore, being a peer leader is beneficial for reducing eating disorder symptoms, but not for advancing leadership skills.
ContributorsCamiliere, Taylor Marie (Author) / Perez, Marisol (Thesis director) / Cavanaugh Toft, Carolyn (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor) / Department of Psychology (Contributor)
Created2015-05
Description
In this study, potential differences in the manifestation and rates of eating disorders and symptoms (body dissatisfaction, weight and shape concerns, food restriction, and compensatory behaviors) in college women across sexual orientations were examined. The sociocultural model of eating disorders was also examined for these women across sexual orientations. The participants were organized into three different sexual orientation groups for analysis: heterosexual (group 1), bisexual, pansexual, and polysexual (group 2), and lesbian, gay, queer, transsexual, asexual, and other (group 3). Using cross-sectional data, it was revealed that there were significant group differences when comparing the three sexual orientation groups on loss of control over eating, but no significant group differences on body dissatisfaction, thin ideal internalization, and weight-related eating pathology, and total eating disorder symptoms scores. The sociocultural model was not predictive of eating disorder symptoms among non-heterosexual groups. Longitudinal analyses revealed that the sociocultural model of eating disorders prospectively predicts eating disorder symptoms among heterosexual women, but not non-heterosexual women. Both cross-sectional and longitudinal analyses indicate that non-heterosexual women may be protected from societal pressure to subscribe to the thin ideal and its subsequent internalization. However, the comparison group of heterosexual women in our study may not have been completely representative of undergraduate women in terms of total eating disorder symptoms or eating pathology. Additionally, regardless of sexual orientation, our sample reported more total eating disorder symptoms and emotional eating than previous studies. These findings have both clinical and research implications. Future research is needed to determine what risk factors and treatment target variables are relevant for non-heterosexual women.
ContributorsNorman, Elizabeth Blair (Author) / Perez, Marisol (Thesis director) / Presson, Clark (Committee member) / Cavanaugh Toft, Carolyn (Committee member) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
The Association Between Acne and Social Appearance Anxiety and Other Correlates Among Undergraduates
Description
The goal of the current study was to investigate the prevalence of SAA and body dissatisfaction among freshman undergraduate students between 18-20 years old suffering from self-reported acne. A total of 73 participants in an online survey were asked to complete the Generalized Anxiety Disorder-7 (GAD-7), Patient Health Questionnaire-9 (PHQ-9), Body Parts Satisfaction Scale (BPSS), and Social Appearance Anxiety Scale (SAAS). No significant correlation was found between acne severity and SAAS scores, but a significant, positive correlation was found between acne severity and body dissatisfaction. Moreover, acne sufferers had higher mean scores for the BPSS than non-acne sufferers indicating higher body dissatisfaction, but there was no significant difference in the scores for the SAAS between acne sufferers and non-acne sufferers. There was also no significant difference in correlations between acne severity and SAAS scores or BPSS scores between men and women, however, women had much higher mean scores for SAAS than men. In addition, scores for the SAAS and BPSS were found to have a significant, positive correlation with both depression and anxiety across the entire sample. There is paucity of research on the psychosocial effects of acne, more specifically social appearance anxiety (SAA), so further research is needed to replicate and extend the findings of the current study using a larger sample size ranging in acne severity.
ContributorsHowe, Sara Katelyn (Author) / Perez, Marisol (Thesis director) / Jimenez-Arista, Laura (Committee member) / College of Integrative Sciences and Arts (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
College-aged women are at an increased risk for the development of subclinical levels of eating disordered symptoms, which have been correlated to lasting deleterious cognitive, physical, and academic effects. The Body Project (TBP) is a universal group-based eating disorder prevention program that targets undergraduate women and challenges thin ideal messages through cognitive dissonance. Burlingame, Strauss, and Joyce (2013) in a meta-analysis of group treatments proposed five factors that independently and congruently work to promote individual change in group treatments: formal change theory, patient characteristics, leader characteristics, structural factors, and small group processes. A host of literature within TBP exists surrounding four of these factors, however, little research has been conducted on the small group processes that moderate individual change within this eating disorder prevention program.
The current study was designed to replicate and extend previous findings on the prevalence of the lemming effect within TBP, as well as examine how the lemming effect is related to outcome of treatment at a 3-month follow-up. Thirty-two participants aged 18-24 were examined. Groups ranged from 3 to 21 participants, including peer leaders. Twenty-nine audio recordings of session one of TBP were coded for lemming effects by the main research, and ten were coded by blind raters for inter-rater reliability measures. Three scales, the Ideal Body Stereotype Scale-Revised (IBSS-R), the Body Parts Satisfaction Scale-Revised (BPSS-R), and the Eating Disorder Examination Questionnaire (EDE-Q), were used to measure levels of thin-ideal internalization, body satisfaction, and frequencies of eating disordered (ED) behaviors, respectively.
Partial correlations revealed nonsignificant relationships between the number of lemming effects and the change in thin-ideal internalization and body satisfaction from baseline to follow-up. Additionally, a reliable change index revealed that the majority of change from baseline to follow-up was reliable for the IBSS-R, and the majority of change for the BPSS-R was unreliable. Lastly, chi-square tests of independence revealed nonsignificant relations between the number of lemming effects and change in ED behaviors.
Due to the small sample and lack of findings, future research would benefit from including a larger sample. This would enable larger power to detect effects and allow for more thorough statistical analyses to be performed to compare the relation of lemming effects to changes in outcome. However, this was the first study to look at the lemming effect variable as a small group process within TBP and added to the growing literature on how small group processes result in efficacious outcomes of treatment within group treatments.
The current study was designed to replicate and extend previous findings on the prevalence of the lemming effect within TBP, as well as examine how the lemming effect is related to outcome of treatment at a 3-month follow-up. Thirty-two participants aged 18-24 were examined. Groups ranged from 3 to 21 participants, including peer leaders. Twenty-nine audio recordings of session one of TBP were coded for lemming effects by the main research, and ten were coded by blind raters for inter-rater reliability measures. Three scales, the Ideal Body Stereotype Scale-Revised (IBSS-R), the Body Parts Satisfaction Scale-Revised (BPSS-R), and the Eating Disorder Examination Questionnaire (EDE-Q), were used to measure levels of thin-ideal internalization, body satisfaction, and frequencies of eating disordered (ED) behaviors, respectively.
Partial correlations revealed nonsignificant relationships between the number of lemming effects and the change in thin-ideal internalization and body satisfaction from baseline to follow-up. Additionally, a reliable change index revealed that the majority of change from baseline to follow-up was reliable for the IBSS-R, and the majority of change for the BPSS-R was unreliable. Lastly, chi-square tests of independence revealed nonsignificant relations between the number of lemming effects and change in ED behaviors.
Due to the small sample and lack of findings, future research would benefit from including a larger sample. This would enable larger power to detect effects and allow for more thorough statistical analyses to be performed to compare the relation of lemming effects to changes in outcome. However, this was the first study to look at the lemming effect variable as a small group process within TBP and added to the growing literature on how small group processes result in efficacious outcomes of treatment within group treatments.
ContributorsStadheim, Jenna Lynn (Author) / Perez, Marisol (Thesis director) / Doane, Leah (Committee member) / Sanford School of Social and Family Dynamics (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
Alzheimer’s disease (AD) is characterized by the aberrant accumulation and aggregation of proteins that in turn contribute to learning and memory deficits. The mammalian target of rapamycin (mTOR) plays an essential role in regulating the synthesis and degradation of proteins that contribute to cell growth and learning and memory. Hyperactivity of mTOR can cause detrimental effects to protein homeostasis and has been linked to AD. The proline-rich Akt-substrate 40 kDa (PRAS40) is a negative regulator of mTOR, as it binds to mTOR directly, reducing its activity. Upon phosphorylation, PRAS40 detaches from mTOR thereby releasing its inhibitory effects. Increased phosphorylation of PRAS40, and a subsequent increase in mTOR activity has been linked to diabetes, cancer, and other conditions; however, PRAS40’s direct role in the pathogenesis of AD is still unclear. To investigate the role of PRAS40 in AD pathology, we generated a PRAS40 conditional knockout mouse model and, using a neuronal-specific Cre recombinase, selectively removed PRAS40 from APP/PS1 mice. Removing neuronal PRAS40 exacerbated Abeta levels and plaque load but paradoxically had no significant effects on mTOR signaling. Mechanistically, the increase in Abeta pathology was linked to a decrease in autophagy function. Our data highlight a primary role of PRAS40 in the pathogenesis of AD.
ContributorsSurendra, Likith (Author) / Oddo, Salvatore (Thesis director) / Velazquez, Ramon (Committee member) / Pratico, Domenico (Committee member) / School of Life Sciences (Contributor) / Dean, W.P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
Higher education institutions have increasingly sought to diversify the ethnic makeup of freshmen classes (Covarrubias, Herrmann, & Fryberg, 2016) and rates of Latinx college attendance have been rising (Hall, Nishina, & Lewis, 2017). However, despite comparable levels of earned-credits, Latinx students have lower rates of college completion (Contreras & Contreras, 2015). One potential explanation may be disproportionate increases in stress, and in particular, discrimination experiences reported by Latinx students during the transition from high school to college (Hunyh & Fuligni, 2012). As such, the aim of the current study was to examine whether everyday discrimination in high school and college were associated with changes in adolescent well-being and academic adjustment over the college transition in a sample of Latinx adolescents. Study participants were 209 Latinx adolescents (85.1% Mexican descent, 62.1% 2nd generation; 35.6% male; Mage= 17.59) who completed questionnaire assessments during the spring or summer before entering college (T1) and again during the first semester of college (T2; 88.5% retention). In both high school and college, participants completed a modified version of the Everyday Discrimination Scale (T1 α=.88, T2 α=.89; Williams et al., 1997). Dependent variables included internalizing symptoms in college (depressive symptoms {α = .95}, anxiety symptoms {α = .88}, stress symptoms {α = .94}; DASS; Lovibond & Lovibond, 1995), and institutional records of college GPA. Correlation and regression analyses were conducted in SPSS 23 to examine associations between discrimination experiences (high school and college) and college internalizing symptoms and GPA, controlling for high school levels. Other covariates included immigrant generation status, sex, parent education (as a proxy for socioeconomic status), and whether the participant attended the focal higher education institution. Zero order correlations (Table 1) revealed that greater reports of discrimination in high school and college were associated with higher depressive symptoms, higher anxiety symptoms, higher stress, but not GPA in college (Table 1; all ps <.05). In multivariate analyses and after adjusting for covariates similar patterns emerged (Table 2). Greater reports of discrimination in college were associated with higher depressive symptoms (β = .18, p < .05), anxiety symptoms (β = .19, p <.05) and stress (β = .18, p <.05), but not GPA (β = -.04, ns). Everyday experiences of discrimination in high school were not significantly associated with college outcomes. In summary, our findings suggest that discrimination experiences among Latinx students in college, but not high school, are associated with increases in internalizing symptoms, including depression, anxiety and stress. Interestingly, discrimination experiences in high school and college were not associated with academic achievement in the first semester of college. Such findings suggest that higher education institutions should focus on global indicators of well-being during the Latinx college transition and seek to implement programs to: a) reduce stress associated with engaging in diverse college environments and b) reduce discrimination experiences on college campuses. Future research is needed for replication of these results and should also seek to further explore the trajectories of internalizing symptoms beyond the first semester of college.
ContributorsSills, Jessica (Author) / Doane, Leah (Thesis director) / Perez, Marisol (Committee member) / Castro, Saul (Committee member) / Department of English (Contributor, Contributor) / Department of Psychology (Contributor) / Sanford School of Social and Family Dynamics (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The mammalian target of rapamycin (mTOR) is integral in regulating cell growth as it maintains a homeostatic balance of proteins by modulating their synthesis and degradation. In the brain, mTOR regulates protein-driven neuroplastic changes that modulate learning and memory. Nevertheless, upregulation of mTOR can cause detrimental effect in spatial memory and synaptic plasticity. The proline-rich Akt-substrate 40 kDa (PRAS40) is a key negative regulator of mTOR, as it binds mTOR and directly reduces its activity. To investigate the role of PRAS40 on learning and memory, we generated a transgenic mouse model in which we used the tetracycline-off system to regulate the expression of PRAS40 specifically in neurons of the hippocampus. After induction, we found that mice overexpressing PRAS40 performed better than control mice in the Morris Water Maze behavioral test. We further show that the improvement in memory was associated with a decrease in mTOR signaling, an increase in dendritic spines in hippocampal pyramidal neurons, and an increase in the levels of brain-derived neurotrophic factor (BDNF), a neurotrophin necessary for learning and memory. This is the first evidence that shows that increasing PRAS40 in the mouse brain enhances learning and memory deficits.
ContributorsSarette, Patrick William (Author) / Oddo, Salvatore (Thesis director) / Caccamo, Antonella (Committee member) / Kelleher, Raymond (Committee member) / School of Molecular Sciences (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
To date, it has been difficult to elucidate the role of tau in learning and memory during adulthood due to developmental compensation of other microtubule associated proteins in Tau knockout (KO) mice. Here, we generated an adeno-associated virus (AAV) expressing a doxycycline (doxy)-inducible short-hairpin (sh) RNA targeted to tau, and stereotaxically and bilaterally injected 7-month-old C57BL/6 mice with either the AAV-shRNAtau or an AAV expressing a scramble shRNA sequence. Seven days after the injections, all animals were administered doxy for thirty-five days to induce expression of shRNAs, after which they were tested in the open field, rotarod and Morris water maze (MWM) to assess anxiety like behavior, motor coordination and spatial reference memory, respectively. Our results show that reducing tau in the adult hippocampus produces significant impairments in motor coordination, endurance and spatial memory. Tissue analyses shows that tau knockdown reduces hippocampal dendritic spine density and the levels of BDNF and synaptophysin, two proteins involved in memory formation and plasticity. Our approach circumvents the developmental compensation issues observed in Tau KO models and shows that reducing tau levels during adulthood impairs cognition.
ContributorsTran, An Le (Author) / Oddo, Salvatore (Thesis director) / Velazquez, Ramon (Committee member) / Roberson, Erik (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05