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The brain continuously monitors speech output to detect potential errors between its sensory prediction and its sensory production (Daliri et al., 2020). When the brain encounters an error, it generates a corrective motor response, usually in the opposite direction, to reduce the effect of the error. Previous studies have shown

The brain continuously monitors speech output to detect potential errors between its sensory prediction and its sensory production (Daliri et al., 2020). When the brain encounters an error, it generates a corrective motor response, usually in the opposite direction, to reduce the effect of the error. Previous studies have shown that the type of auditory error received may impact a participant’s corrective response. In this study, we examined whether participants respond differently to categorical or non-categorical errors. We applied two types of perturbation in real-time by shifting the first formant (F1) and second formant (F2) at three different magnitudes. The vowel /ɛ/ was shifted toward the vowel /æ/ in the categorical perturbation condition. In the non-categorical perturbation condition, the vowel /ɛ/ was shifted to a sound outside of the vowel quadrilateral (increasing both F1 and F2). Our results showed that participants responded to the categorical perturbation while they did not respond to the non-categorical perturbation. Additionally, we found that in the categorical perturbation condition, as the magnitude of the perturbation increased, the magnitude of the response increased. Overall, our results suggest that the brain may respond differently to categorical and non-categorical errors, and the brain is highly attuned to errors in speech.

ContributorsCincera, Kirsten Michelle (Author) / Daliri, Ayoub (Thesis director) / Azuma, Tamiko (Committee member) / School of Sustainability (Contributor) / College of Health Solutions (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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The following paper explores the various effects of stress on the endocrine system. Many understand that being stressed can jeopardize maintaining adequate health, but what specifically happens when humans are stressed? Why does stress affect human health? This paper delves into background information, previous research, and the depths to which

The following paper explores the various effects of stress on the endocrine system. Many understand that being stressed can jeopardize maintaining adequate health, but what specifically happens when humans are stressed? Why does stress affect human health? This paper delves into background information, previous research, and the depths to which stress negatively affects the body. The effects stress has on the endocrine system, specifically on the hypothalamic-pituitary-thyroid axis (HPT) and hypothalamic-pituitary-adrenal axis (HPA), is discussed, and additionally, at home de-stressing methods are researched. The study included a set of participants at Arizona State University. The method took place over the course of 2 weeks: one normal week, and the other with the implementation of a de-stressing method. The normal week involved the participants living their daily lives with the addition of a stress-measuring survey, while the second week involved implementing a de-stressing method and stress-measuring survey. The purpose of this study was to discover if there was a correlation between performing these relaxation activities and decreasing stress levels in ASU students. The results found that students reported they felt more relaxed and calm after the activities. Overall, this thesis provides information and first hand research on the effects of stress and stress-reducing activities and discusses the importance of maintaining lower stress levels throughout everyday life.

ContributorsWeissmann, Megan Diane (Co-author) / Gebara, Nayla (Co-author) / Don, Rachael (Thesis director) / Irving, Andrea (Committee member) / Kizer, Elizabeth (Committee member) / College of Health Solutions (Contributor) / Edson College of Nursing and Health Innovation (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Description

The following paper explores the various effects of stress on the endocrine system. Many understand that being stressed can jeopardize maintaining adequate health, but what specifically happens when humans are stressed? Why does stress affect human health? This paper delves into background information, previous research, and the depths to which

The following paper explores the various effects of stress on the endocrine system. Many understand that being stressed can jeopardize maintaining adequate health, but what specifically happens when humans are stressed? Why does stress affect human health? This paper delves into background information, previous research, and the depths to which stress negatively affects the body. The effects stress has on the endocrine system, specifically on the hypothalamic-pituitary-thyroid axis (HPT) and hypothalamic-pituitary-adrenal axis (HPA), is discussed, and additionally, at home de-stressing methods are researched. The study included a set of participants at Arizona State University. The method took place over the course of 2 weeks: one normal week, and the other with the implementation of a de-stressing method. The normal week involved the participants living their daily lives with the addition of a stress-measuring survey, while the second week involved implementing a de-stressing method and stress-measuring survey. The purpose of this study was to discover if there was a correlation between performing these relaxation activities and decreasing stress levels in ASU students. The results found that students reported they felt more relaxed and calm after the activities. Overall, this thesis provides information and first hand research on the effects of stress and stress-reducing activities and discusses the importance of maintaining lower stress levels throughout everyday life.

ContributorsGebara, Nayla F (Co-author) / Weissmann, Megan (Co-author) / Don, Rachael (Thesis director) / Irving, Andrea (Committee member) / Kizer, Elizabeth (Committee member) / Edson College of Nursing and Health Innovation (Contributor) / College of Health Solutions (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description

Stress is a necessary and functional part of human physiology. From responding to life-threatening situations to getting people out of bed in the morning, stress serves a major purpose in human survival. However, when consistent and high levels of stress are experienced, it can pose a threat to human health.

Stress is a necessary and functional part of human physiology. From responding to life-threatening situations to getting people out of bed in the morning, stress serves a major purpose in human survival. However, when consistent and high levels of stress are experienced, it can pose a threat to human health. One of the major mediators of physiological stress is a hormone called cortisol. Cortisol is a well-defined substance and its function in normal physiology is well understood. Scientific research indicates that consistent and high levels of this hormone may be an aid in cancer’s ability to evade the human immune response. Despite this, there is not much known about its relationship with cancer. I used immunofluorescence to determine cell-to-cell variability of vimentin expression and DNA content for cells that were exposed to cortisol at consistent and frequent doses overtime and those not exposed to cortisol to determine if cortisol altered the variability of vimentin expression and DNA content. I observed no change in the variability in vimentin expression across both cell conditions. I did observe variability in DNA content across both cell conditions, with more variability in the population affected by cortisol. These results suggest that there might be a relationship between the stress induced by cortisol, taking place at the genomic level but may have no impact on specific protein expression. Potential implications of the research conducted are looks to preventative medicine in the context of stress experienced by members of marginalized groups as a way of preventing cancer development.

ContributorsWarthen, Alexander (Author) / Quaranta, Kimberly (Thesis director) / Bussey, Kimberly (Thesis director) / Cunningham, Anna (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2023-05
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Description
Cochlear implant (CI) successfully restores hearing sensation to profoundly deaf patients, but its
performance is limited by poor spectral resolution. Acoustic CI simulation has been widely used
in normal-­hearing (NH) listeners to study the effect of spectral resolution on speech perception,
while avoiding patient-­related confounds. It is unclear how speech production may change

Cochlear implant (CI) successfully restores hearing sensation to profoundly deaf patients, but its
performance is limited by poor spectral resolution. Acoustic CI simulation has been widely used
in normal-­hearing (NH) listeners to study the effect of spectral resolution on speech perception,
while avoiding patient-­related confounds. It is unclear how speech production may change with
the degree of spectral degradation of auditory feedback as experience by CI users. In this study,
a real-­time sinewave CI simulation was developed to provide NH subjects with auditory
feedback of different spectral resolution (1, 2, 4, and 8 channels). NH subjects were asked to
produce and identify vowels, as well as recognize sentences while listening to the real-­time CI
simulation. The results showed that sentence recognition scores with the real-­time CI simulation
improved with more channels, similar to those with the traditional off-­line CI simulation.
Perception of a vowel continuum “HEAD”-­ “HAD” was near chance with 1, 2, and 4 channels,
and greatly improved with 8 channels and full spectrum. The spectral resolution of auditory
feedback did not significantly affect any acoustic feature of vowel production (e.g., vowel space
area, mean amplitude, mean and variability of fundamental and formant frequencies). There
was no correlation between vowel production and perception. The lack of effect of auditory
feedback spectral resolution on vowel production was likely due to the limited exposure of NH
subjects to CI simulation and the limited frequency ranges covered by the sinewave carriers of
CI simulation. Future studies should investigate the effects of various CI processing parameters
on speech production using a noise-­band CI simulation.
ContributorsPerez Lustre, Sarahi (Author) / Luo, Xin (Thesis director) / Daliri, Ayoub (Committee member) / Division of Teacher Preparation (Contributor) / College of Health Solutions (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
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Description
The purpose of this study was to determine the impact of yoga intensity on stress in a population of college-aged females. Stress has been shown to negatively impact health both physically and mentally, therefore it is imperative that there is a way to combat these negative health effects. Participants included

The purpose of this study was to determine the impact of yoga intensity on stress in a population of college-aged females. Stress has been shown to negatively impact health both physically and mentally, therefore it is imperative that there is a way to combat these negative health effects. Participants included females between the ages of 18-25 who had been participating in physical activity 3-5 days per week (n=11). The subjects participated in two sessions of yoga, one of lower intensity, Hatha, and one of higher intensity, Vinyasa. Stress was measured by a Stress Indicators Questionnaire, which was modified to fit the aim of the study. It was filled out by the subjects pre and post each session, resulting in four questionnaires per subject. The yoga classes were displayed through a program called YogaGlo. The data was scored and analyzed with a modified scoring guideline based off of the questionnaire guidelines and with the use of Excel. The results showed that there was a statistically significant effect of both low (p value= 0.02) and high (p value= 0.01) intensity yoga on stress. There was not a statistically significant effect between the different yoga intensities on stress (p value= 0.3). Limitations of our study include a self-selective population, no control group, and demand characteristics. The results from this study should be used for further research on yoga and various aspects of mental health, such as anxiety and depression, with a female population of all ages, longer yoga sessions, and a longitudinal study format.
ContributorsSydenham, Isabella Anne (Co-author) / Edwards, Christina (Co-author) / Hoffner, Kristin (Thesis director) / Nolan, Nicole Blaize (Committee member) / College of Health Solutions (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
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Description

For my senior undergraduate thesis, I created a self-exploration project to understand stress management. The Alexander Technique, created by F.M. Alexander, is an educational “hands-on” awareness practice that has spurred variations since its inception (Gelb, 2003). Primal AlexanderTM (PATM), a variation of the Alexander technique developed by Mio Morales, is

For my senior undergraduate thesis, I created a self-exploration project to understand stress management. The Alexander Technique, created by F.M. Alexander, is an educational “hands-on” awareness practice that has spurred variations since its inception (Gelb, 2003). Primal AlexanderTM (PATM), a variation of the Alexander technique developed by Mio Morales, is taught on online platforms, chiefly Zoom and other equivalent video communication. PATM shares with the traditional teachings of the Alexander Technique that learning the practice has many benefits – one of these benefits being effective internal stress management. After being introduced to Primal AlexanderTM by Faculty Honors Advisor Robert Kaplan of Arizona State University, I began researching stress management while also practicing Primal AlexanderTM. Considering that nearly half of U.S adults report that stress has a negative effect on their health, it is fair to assume that properly managing stress in individuals continues to be a major obstacle in healthcare (SingleCare, 2022). My personal afflictions that were a result of stress were beginning to affect my mental, emotional, and physical states of health. Learning PATM inspired my support for clinical application of the practice as a stress management technique as I recognized changes within my body that suggested effective, internal stress management.

ContributorsErhardt, Cassandra (Author) / Kaplan, Robert (Thesis director) / Sidman, Cara (Committee member) / Barrett, The Honors College (Contributor) / School for the Future of Innovation in Society (Contributor) / The Sidney Poitier New American Film School (Contributor) / College of Health Solutions (Contributor)
Created2022-05
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Description

The following study was designed to better understand the perceived stress levels and common coping strategies of nursing students attending Arizona State University during the COVID-19 pandemic. Lazarus and Folkman’s (1984) transactional theory of stress and coping suggests that stress is a product of the transaction between an individual and

The following study was designed to better understand the perceived stress levels and common coping strategies of nursing students attending Arizona State University during the COVID-19 pandemic. Lazarus and Folkman’s (1984) transactional theory of stress and coping suggests that stress is a product of the transaction between an individual and their complex environment. During the COVID-19 pandemic nursing students were forced to close and utilize online learning methods to ensure the safety of students, faculty, and staff. The current study identifies the perceived stress levels and common coping strategies of undergraduate nursing students at Arizona State University. A survey was sent to the identified population which asked participants to rate their stress level of attending nursing school during COVID-19 on a scale from one to ten. In addition, the Carver’s COPE inventory was utilized to determine common coping strategies among the nursing student population. The results of this study indicate that the closure of universities, and utilization of online learning methods increased stress levels of nursing students attending Arizona State University during COVID-19. In addition, nursing students most common coping strategies were identified as the use of planning, a problem-focused coping strategy, reinterpretation and growth, and active coping.

ContributorsBillera, Ava (Author) / Savaglio, Lauren (Thesis director) / Sebren, Ann (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2022-05