Matching Items (34)
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- All Subjects: psychology
- Creators: School of Life Sciences
Description
Humans use emotions to communicate social cues to our peers on a daily basis. Are we able to identify context from facial expressions and match them to specific scenarios? This experiment found that people can effectively distinguish negative and positive emotions from each other from a short description. However, further research is needed to find out whether humans can learn to perceive emotions only from contextual explanations.
ContributorsCulbert, Bailie (Author) / Hartwell, Leland (Thesis director) / McAvoy, Mary (Committee member) / School of Life Sciences (Contributor) / School of Criminology and Criminal Justice (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
Colorimetric assays are an important tool in point-of-care testing that offers several advantages to traditional testing methods such as rapid response times and inexpensive costs. A factor that currently limits the portability and accessibility of these assays are methods that can objectively determine the results of these assays. Current solutions consist of creating a test reader that standardizes the conditions the strip is under before being measured in some way. However, this increases the cost and decreases the portability of these assays. The focus of this study is to create a machine learning algorithm that can objectively determine results of colorimetric assays under varying conditions. To ensure the flexibility of a model to several types of colorimetric assays, three models were trained on the same convolutional neural network with different datasets. The images these models are trained on consist of positive and negative images of ETG, fentanyl, and HPV Antibodies test strips taken under different lighting and background conditions. A fourth model is trained on an image set composed of all three strip types. The results from these models show it is able to predict positive and negative results to a high level of accuracy.
ContributorsFisher, Rachel (Author) / Blain Christen, Jennifer (Thesis director) / Anderson, Karen (Committee member) / School of Life Sciences (Contributor) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
Juvenile offenders suffer from substance use disorders at higher rates than adolescents in the general public. Substance use disorders also predict an increased risk for re-offending. Therefore, it is important that these juveniles, in particular, receive the appropriate substance use disorder treatment. The present study used logistic regression to test whether race/ethnicity would moderate the match between substance use disorder diagnosis and the receipt of a substance use disorder related service in a sample of male, serious juvenile offenders. Results showed that among those with a substance use disorder diagnosis, there were no race/ethnicity differences in the receipt of the appropriate service. However, among those without a substance use disorder diagnosis, non-Hispanic Caucasians were more likely to receive substance use service than were Hispanics or African-Americans. Post-hoc analyses revealed that when using a broader definition of substance use problems, significant differences by race/ethnicity in the prediction of service receipt were only observed at low levels of substance use problems. These findings shed light on how race/ethnicity may play a role in the recommendation of substance use disorder services in the juvenile justice system.
ContributorsMansion, Andre (Author) / Chassin, Laurie (Thesis advisor) / Dishion, Thomas (Committee member) / Knight, George (Committee member) / Arizona State University (Publisher)
Created2013
Description
The relationship of attachment style to both the selection and efficacy of emotion management strategies in adult dyadic contexts is not well elucidated. In non-romantic contexts, the interplay between emotion management and individual attachment style may provide a better understanding of how affect can be mitigated in daily life. The present study investigated these interactions by studying 56 pairs of college age women who were close friends. Participants were asked to have a conversation about a current source of concern/distress to one partner, while seated in the laboratory. After the conversation, participants were asked to report their subjective experience of several emotions during the conversation, such as ‘sadness,’ ‘joy,’ and ‘fear.’ Participants were also asked to complete a questionnaire assessing adult attachment style, specifically attachment anxiety and avoidance. Behavior during the conversation was coded for co-rumination and co-cognitive reappraisal by the “listener.” Listener attachment insecurity showed a trending association with increased use of co-detached reappraisal, for both avoidance (p=0.14) and anxiety (p=0.14). Listener attachment insecurity also predicted lower use of co-rumination, for both anxiety (p=0.10) and avoidance (p=0.02). Speaker attachment insecurity moderated the relationship between co-detached reappraisal and speaker emotion. Greater co-detached reappraisal predicted higher reports of non-fear negative and positive emotions, but only for high-avoidance speakers. Greater co-detached reappraisal also predicted greater non-fear negative emotions among speakers high, but not low, on attachment anxiety. Greater listener use of co-positive reappraisal was associated with higher reports of speaker fear; this effect was not moderated by speaker attachment style. These findings are discussed in relation to theoretical conceptions of attachment style, and in terms of the impact of context on emotion.
ContributorsJakob, Nicholas (Co-author) / Tolmachoff, Georgeanne (Co-author) / Shiota, Michelle (Thesis director) / Luecken, Linda (Committee member) / Yee, Claire (Committee member) / School of Life Sciences (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
First-semester student retention is a constant priority for undergraduate institutions. The transition to the collegiate level, and to a new scholastic program and format, is frequently challenging academically and socially—for this reason, many first-semester course schedules for incoming freshman undergraduates feature an introductory seminar to ease transition to an undergraduate lifestyle. Arizona State University features a required “Careers in the Life Sciences” course for its first-semester School of Life Sciences students, which has had tractable results in first semester student retention and academic success. Here, we evaluate a component of the seminar, the peer-mentorship program, for its efficacy in students’ first semester experience. Analysis of self-reports from 168 first-semester “mentees” and their 25 mentors indicates frequency of mentee-mentor contact was the best indicator of a higher first semester GPA, comfort with academic resources and study habits, and desire to engage in extracurricular activities and internships. These data indicate that access to a mentor who actively engages and verbally connects with their mentees is a valuable component of first-semester student academic integration and retention.
ContributorsMathews, Ian T. (Author) / Capco, David (Thesis director) / Clark-Curtiss, Josephine (Committee member) / Harrell, Carita (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor)
Created2014-05
Description
This study examined the cross-sectional and longitudinal associations among diurnal cortisol rhythms and sleeping patterns in adolescents. 79 participants completed the study over three days during the spring semester of their senior year in high school, and 76 of these subjects participated again over three days during the fall semester of their freshman year in college. They completed daily saliva samples and diary entries, while wearing an actigraph to obtain objective measurements of sleep duration and efficiency. Cross-sectionally, longer sleep duration was associated with a lower cortisol awakening response, a smaller area under the cortisol curve, and a steeper cortisol slope. Longitudinally, there was no significant relationship between sleep duration and these cortisol parameters. Moreover, sleep efficiency was not associated with cortisol parameters cross-sectionally nor longitudinally. Results suggest associations between concurrent sleep duration and cortisol patterns, and may have significant impact on understanding adolescents' physiological response to stress.
ContributorsLathrop, Devon Olivia (Author) / Doane, Leah (Thesis director) / Orchinik, Miles (Committee member) / Zeiders, Katherine (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor)
Created2013-05
Description
An introduction to neuroscientific thought aimed at an audience that is not educated in biology. Meant to be readable and easily understood by anyone with a high school education. The first section is completed in its entirety, with outlines for the proposed final sections to be completed over the next few years.
ContributorsNelson, Nicholas Alan (Author) / Olive, M. Foster (Thesis director) / Brewer, Gene (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / School of Life Sciences (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor)
Created2014-05
Description
Attention-deficit/hyperactivity disorder (ADHD) is a common developmental disorder characterized by symptoms of impulsivity, inattention, and hyperactivity that interfere with development. Given the lasting academic and social deficits associated with ADHD symptoms, it is critical to study the risk factors of this disorder and possible factors that could protect against its development. Therefore, the current study investigated the potential role of social support from parents, siblings, teachers, and peers as promotive and protective factors against the development of ADHD symptoms for children at familial risk of developing ADHD symptoms. Participants included 903 twins (30.5% monozygotic twins, 35.9% same-sex dizygotic twins, 31.7% opposite-sex dizygotic twins) from the longitudinal Arizona Twin Project. Children (51.6% female) were assessed for social support and ADHD symptoms at age 8 (M = 8.42, SD = 0.68) and for ADHD symptoms at age 9 (M = 9.71, SD = 0.93). Children’s familial risk for developing ADHD symptoms was assessed as a function of their cotwin’s symptom status at age 8 and the pair’s zygosity. Mixed model regression analyses indicated that familial risk was a robust predictor of ADHD symptoms. Further, peer acceptance was found to operate as a promotive factor against the development of ADHD symptoms, with some evidence for positive parenting as a promotive factor, as well. None of the forms of social support were found to be protective factors for children at familial risk of developing ADHD symptoms. Bivariate twin analyses revealed that peer acceptance and ADHD were related for both genetic and environmental reasons, suggesting that children’s heritable behaviors influence their peer acceptance. Future directions may include examining additional factors as possible moderators of familial risk of developing ADHD symptoms.
ContributorsHawkins, Jessica Kathryn (Author) / Lemery-Chalfant, Kathryn (Thesis director) / Miadich, Samantha (Committee member) / School of Life Sciences (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12
Description
Psychological studies and feminist theories have determined the existence of many forms of
male bias in the English language. Male bias can be traced through American history in the form of laws of coverture and the categorization of women in law. Taking into account the connections between sexist language, history, and law, this paper investigates 1) how and why legal language is biased, 2) why male bias has persisted in law over time, and 3) what impact male-biased law has on women. The works of ancient philosophers, feminist historians, psycholinguistic scientists, and modern philosophers of law are used to explain the patriarchal gender hierarchy’s influence on law. Case law and legal policies demonstrate that sexism has been maintained through history due to the preservation of male-biased language and the exclusion of women from the public sphere. Today, the use of masculine generics continues to taint the legal profession by reflecting, rather than denouncing, its patriarchal roots.
male bias in the English language. Male bias can be traced through American history in the form of laws of coverture and the categorization of women in law. Taking into account the connections between sexist language, history, and law, this paper investigates 1) how and why legal language is biased, 2) why male bias has persisted in law over time, and 3) what impact male-biased law has on women. The works of ancient philosophers, feminist historians, psycholinguistic scientists, and modern philosophers of law are used to explain the patriarchal gender hierarchy’s influence on law. Case law and legal policies demonstrate that sexism has been maintained through history due to the preservation of male-biased language and the exclusion of women from the public sphere. Today, the use of masculine generics continues to taint the legal profession by reflecting, rather than denouncing, its patriarchal roots.
ContributorsHabib, Shanika Sabin (Author) / Stoff, Laurie (Thesis director) / Fedock, Rachel (Committee member) / Department of Psychology (Contributor) / School of International Letters and Cultures (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Chronic stress is a risk factor for many diseases that impact the brain, including Alzheimer’s Disease. Unlike acute stress, chronic stress reduces neuronal plasticity, which can lead to neuronal remodeling and suppression. This project investigates the effect of stress on the dendritic complexity of hippocampal neurons in rats, demonstrating a methodology for procuring and analyzing these neurons. The brains of the 160 rats from the Sustained Threat and Timing (STAT) experiment were frozen. The STAT experiment investigated the effect chronic variable stress had on prospective and retrospective timing in rodents. Using a cryostat, thin coronal slices of brain tissue were placed on microscopic slides. The tissue samples were then stained using the Golgi method of silver staining. Hippocampal neurons were assessed using Sholl Analysis; the dendritic complexity of these neurons was quantified. The method of using Sholl Analysis was found to be an effective process in measuring dendritic length of hippocampal neurons.
ContributorsMiller, Amara Delaney (Author) / Sanabria, Federico (Thesis director) / Gupta, Tanya (Committee member) / School of Life Sciences (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05