Barrett, The Honors College Thesis/Creative Project Collection
Barrett, The Honors College at Arizona State University proudly showcases the work of undergraduate honors students by sharing this collection exclusively with the ASU community.
Barrett accepts high performing, academically engaged undergraduate students and works with them in collaboration with all of the other academic units at Arizona State University. All Barrett students complete a thesis or creative project which is an opportunity to explore an intellectual interest and produce an original piece of scholarly research. The thesis or creative project is supervised and defended in front of a faculty committee. Students are able to engage with professors who are nationally recognized in their fields and committed to working with honors students. Completing a Barrett thesis or creative project is an opportunity for undergraduate honors students to contribute to the ASU academic community in a meaningful way.
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Fast mapping is the initial link infants make between a word and its referent, and it is crucial to later processes of learning the meanings of words. Despite the importance of fast mapping, previous research has suggested that fast mapping is fragile, with infants being unable to retain words learned through fast mapping longer than five minutes. The current study tested the robustness of fast mapping by imposing task irrelevant interruptions on a fast mapping task. Forty-seven infants (14.7 \u2014 17.4 months old) were assigned to a No Interruption condition, a Posture Interruption condition, or a Visual Interruption condition, and they performed a fast mapping task in which a novel object was named in one trial. Videos of the infants were coded for accuracy of fast mapping and for attentional behaviors (looking behavior) during the task. We found that infants did not learn novel word-object pairings when interrupted, demonstrating that infants' fast mapping abilities are easily disrupted. Overall, there was no evidence that looking behaviors were affected by interruptions, or that they were correlated with accuracy. These findings suggest that fast mapping is fragile in young infants, and further research is required to determine the mechanisms for infant learning, and how infants transition from fast to slow mapping processes.
ContributorsSmith, Emily J (Author) / Benitez, Viridiana (Thesis director) / Glenberg, Arthur (Committee member) / Department of Psychology (Contributor) / School of International Letters and Cultures (Contributor) / Sanford School of Social and Family Dynamics (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12
Description
Teacher assessments are often used alongside parent assessments to identify behavioral problems and patterns in school-aged children. These assessments can aid in the diagnosis of disruptive behavior disorders and are used to screen children for targeted delinquency prevention programs. Although researchers have heavily studied the relationship between parent and teacher assessments, not as much research has analyzed teacher assessments alone, specifically semiannual teacher assessments. Teacher assessments are typically conducted during the fall semester, normally a couple months into the school year, or during the spring semester, normally a couple months after the winter break period. Using data from the Pittsburgh Youth Study (PYS), we aimed to determine the temporal stability and predictive utility of semiannual teacher assessments of children's behavioral problems from 2nd grade to 5th grade. Results showed that mean assessment scores increased from the fall to the spring semester across all 4 grades. We also found that teacher assessments of behavioral problems in grade school were significantly correlated with future serious violence. Although our statistical model did not identify a specific time period or semester when these assessments were most predictive, we observed a pattern where the spring semesters were more predictive for the younger grades, and the fall semesters were more predictive for the older grades. Future research could aim to understand why this pattern exists and what its implications are.
ContributorsForthun, Marisa Nicole (Author) / Pardini, Dustin (Thesis director) / Glenberg, Arthur (Committee member) / School of International Letters and Cultures (Contributor) / Department of Psychology (Contributor) / School of Social Transformation (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12
Description
The use of functional magnetic resonance imaging (fMRI) has been increasing in popularity due to its ability to measure brain activity during presentation of stimuli. Blood flow responses in the brain occur when a stimulus is presented and can be measured using fMRI. The delay of onset of this blood flow response can vary due to distances from the heart to the brain blood vessels. This variability causes differences in onset and time to peak blood flow response across the brain that is not currently predictable. To account for this, statistical analyses add the response's temporal derivative to regression models. Derived from the Taylor series expansion, the temporal derivative corrects for small variations in the time delay for the blood flow response (i.e. less than 1 second or so). However, I show that inclusion of the temporal derivative in analyses increases false positive rates. I conducted fMRI analyses on data collected as participants complete motor responses and on resting state data. Analyses were repeated both with and without inclusion of the temporal derivative. More significant responses were found with inclusion of the temporal derivative in both cases, suggesting possible increases in false positive rates. The goal of the present study is to increase awareness of the current fMRI data analysis practices and their potential flaws.
ContributorsTemporini, Victoria (Author) / McClure, Samuel (Thesis director) / Glenberg, Arthur (Committee member) / Elliott, Blake (Committee member) / Department of Psychology (Contributor) / School of International Letters and Cultures (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12