Matching Items (5)
Description
Critical flicker fusion thresholds (CFFTs) describe when quick amplitude modulations of a light source become undetectable as the frequency of the modulation increases and are thought to underlie a number of visual processing skills, including reading. Here, we compare the impact of two vision-training approaches, one involving contrast sensitivity training and the other directional dot-motion training, compared to an active control group trained on Sudoku. The three training paradigms were compared on their effectiveness for altering CFFT. Directional dot-motion and contrast sensitivity training resulted in significant improvement in CFFT, while the Sudoku group did not yield significant improvement. This finding indicates that dot-motion and contrast sensitivity training similarly transfer to effect changes in CFFT. The results, combined with prior research linking CFFT to high-order cognitive processes such as reading ability, and studies showing positive impact of both dot-motion and contrast sensitivity training in reading, provide a possible mechanistic link of how these different training approaches impact reading abilities.
ContributorsZhou, Tianyou (Author) / Nanez, Jose (Author) / Zimmerman, Daniel (Author) / Holloway, Steven (Author) / Seitz, Aaron (Author) / New College of Interdisciplinary Arts and Sciences (Contributor)
Created2016-10-26
Description
This thesis is a continuation of the Humanities Lab “Narratives of School Shootings” class, which analyzed the impact of school violence on students and communities and examined the narratives and factors that exist relating to school shootings. A primary focus of the class was youth activism and advocacy. In collaboration with the Greenlights Grant Initiative, which was created to combat violence in schools, Barrett students were partnered with school districts to assist in grant writing. Using projects from “Narratives of School Shootings”, the team deduced which grants best supported each school district and worked with the districts to write and submit them. These grants are used for proactive and reactive measures to keep student emotionally and physically sound. Through this process, Barrett students analyzed the intricacies of grant writing and government funding, as well as how those contribute to cycles of inequality.
ContributorsZimmerman, Daniel (Author) / Brammer, Elizabeth (Co-author) / Miller, Allison (Co-author) / Lindstrom-Johnson, Sarah (Thesis director) / Blasingame, James (Committee member) / Barrett, The Honors College (Contributor) / Department of English (Contributor) / Department of Psychology (Contributor)
Created2024-05
Description
This thesis is a continuation of the Humanities Lab “Narratives of School Shootings” class, which analyzed the impact of school violence on students and communities and examined the narratives and factors that exist relating to school shootings. A primary focus of the class was youth activism and advocacy. In collaboration with the Greenlights Grant Initiative, which was created to combat violence in schools, Barrett students were partnered with school districts to assist in grant writing. Using projects from “Narratives of School Shootings”, the team deduced which grants best supported each school district and worked with the districts to write and submit them. These grants are used for proactive and reactive measures to keep student emotionally and physically sound. Through this process, Barrett students analyzed the intricacies of grant writing and government funding, as well as how those contribute to cycles of inequality.
ContributorsBrammer, Elizabeth (Author) / Miller, Allison (Co-author) / Zimmerman, Daniel (Co-author) / Lindstrom Johnson, Sarah (Thesis director) / Blasingame, James (Committee member) / Barrett, The Honors College (Contributor) / School of International Letters and Cultures (Contributor) / Department of English (Contributor)
Created2024-05
Description
This thesis is a continuation of the Humanities Lab “Narratives of School Shootings” class, which analyzed the impact of school violence on students and communities and examined the narratives and factors that exist relating to school shootings. A primary focus of the class was youth activism and advocacy. In collaboration with the Greenlights Grant Initiative, which was created to combat violence in schools, Barrett students were partnered with school districts to assist in grant writing. Using projects from “Narratives of School Shootings”, the team deduced which grants best supported each school district and worked with the districts to write and submit them. These grants are used for proactive and reactive measures to keep student emotionally and physically sound. Through this process, Barrett students analyzed the intricacies of grant writing and government funding, as well as how those contribute to cycles of inequality.
ContributorsMiller, Allison (Author) / Zimmerman, Daniel (Co-author) / Brammer, Elizabeth (Co-author) / Lindstrom Johnson, Sarah (Thesis director) / Blasingame, James (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / Sanford School of Social and Family Dynamics (Contributor)
Created2024-05
Description
Past research suggested that lutein (L) and zeaxanthin (Z) play a role in many aspects of cognitive functions including motor speed, working memory, executive function, psychomotor speed and verbal fluency among elderly people. Moreover, L and Z are the only carotenoids found in the eye, and they are correlated with improved contrast sensitivity, improved temporal vision, reduced glare disability, and reduced risk of age related-macular degeneration (AMD). Animal and postmortem research suggests that MPOD may be a biomarker for predicting cognitive decline with age. The purpose of this study is to evaluate the potential relationship between MPOD and cognition in young healthy adults. There were fifty participants in the current study, 25 had low MPOD. The remaining participants exhibited high MPOD, which was measured using a macular pigment densitometer. People with low MPOD did not perform any worse than people with high MPOD. Although low MPOD in young adults may be a biomarker for future cognitive decline, the effects may lay dormant until later in life. Future research should explore this possibility by replicating this study with an older population.
ContributorsZimmerman, Daniel (Author) / Nanez, Jose E (Thesis advisor) / Shipstead, Zachary (Committee member) / Hall, Deborah (Committee member) / Arizona State University (Publisher)
Created2014