Matching Items (6)
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- All Subjects: working memory
- Creators: Azuma, Tamiko
Description
Frequency effects favoring high print-frequency words have been observed in frequency judgment memory tasks. Healthy young adults performed frequency judgment tasks; one group performed a single task while another group did the same task while alternating their attention to a secondary task (mathematical equations). Performance was assessed by correct and error responses, reaction times, and accuracy. Accuracy and reaction times were analyzed in terms of memory load (task condition), number of repetitions, effect of high vs. low print-frequency, and correlations with working memory span. Multinomial tree analyses were also completed to investigate source vs. item memory and revealed a mirror effect in episodic memory experiments (source memory), but a frequency advantage in span tasks (item memory). Interestingly enough, we did not observe an advantage for high working memory span individuals in frequency judgments, even when participants split their attention during the dual task (similar to a complex span task). However, we concluded that both the amount of attentional resources allocated and prior experience with an item affect how it is stored in memory.
ContributorsPeterson, Megan Paige (Author) / Azuma, Tamiko (Thesis advisor) / Gray, Shelley (Committee member) / Liss, Julie (Committee member) / Arizona State University (Publisher)
Created2013
Description
Military veterans have a significantly higher incidence of mild traumatic brain injury (mTBI), depression, and Post-traumatic stress disorder (PTSD) compared to civilians. Military veterans also represent a rapidly growing subgroup of college students, due in part to the robust and financially incentivizing educational benefits under the Post-9/11 GI Bill. The overlapping cognitively impacting symptoms of service-related conditions combined with the underreporting of mTBI and psychiatric-related conditions, make accurate assessment of cognitive performance in military veterans challenging. Recent research findings provide conflicting information on cognitive performance patterns in military veterans. The purpose of this study was to determine whether service-related conditions and self-assessments predict performance on complex working memory and executive function tasks for military veteran college students. Sixty-one military veteran college students attending classes at Arizona State University campuses completed clinical neuropsychological tasks and experimental working memory and executive function tasks. The results revealed that a history of mTBI significantly predicted poorer performance in the areas of verbal working memory and decision-making. Depression significantly predicted poorer performance in executive function related to serial updating. In contrast, the commonly used clinical neuropsychological tasks were not sensitive service-related conditions including mTBI, PTSD, and depression. The differing performance patterns observed between the clinical tasks and the more complex experimental tasks support that researchers and clinicians should use tests that sufficiently tax verbal working memory and executive function when evaluating the subtle, higher-order cognitive deficits associated with mTBI and depression.
ContributorsGallagher, Karen Louise (Author) / Azuma, Tamiko (Thesis advisor) / Liss, Julie (Committee member) / Lavoie, Michael (Committee member) / Arizona State University (Publisher)
Created2017
Description
Latino parents of children with feeding disorders completed a survey about their experiences accessing support and the cultural competence of their providers. This work is a follow-up project to a presented American Speech and Hearing Association Conference poster (Stats-Caldwell, Lindsay, Van Vuren, 2017). That project revealed caregivers’ use of social media and indicated an overall perceived lack of support from providers. In the present survey, Latino caregivers identified the resources they consult and rated the level of helpfulness in addition to the types of supports they sought and received from these resources. Results indicate a considerable reliance on pediatricians in both frequency of consultation and helpfulness ratings. No significant difference was seen between the frequency of consultation between pediatricians, speech-language pathologists and other service providers. No significant difference was found in the helpfulness ratings between speech-language pathologists and topic-specific social media pages, nor speech-language pathologists and grandmothers. Participants indicated reliance on social media for informational resources. The influence of social media is discussed. The cultural implications of treating this population are also reviewed.
ContributorsVan Vuren, Katherine Ann (Author) / Azuma, Tamiko (Thesis advisor) / Scherer, Nancy (Thesis advisor) / Helms-Tillery, Kate (Committee member) / Arizona State University (Publisher)
Created2018
Description
An increasing number of veterans are transitioning from military service to college. Critical to academic success is the process of decision-making, which previous research has found to be influenced by a variety of factors including anxiety and working memory (WM). Many service-related conditions often influence anxiety and WM, and given the high prevalence of these conditions among veterans, the present study aimed to analyze the effects of working memory and anxiety on decision-making behavior in U.S. Military Veterans. Participants completed a large test battery including tasks assessing WM skills (Symmetry Span Task), anxiety (Beck Anxiety Inventory), and decision-making (Iowa Gambling Task). The study results indicated that WM and anxiety both play roles in decision-making performance in young military veterans. High anxiety is related to increased avoidance of adverse outcomes in decision-making for U.S. Military Veterans, while lower working memory span is associated with greater risk-taking behavior. This study provides both functional and clinical implications into areas of possible intervention that need to be assessed in military veterans, as well as modifications to these assessments that need to be made in order to appropriately measure decision-making behavior. Future work will be done in order to more effectively analyze the adverse impacts of service-related conditions and the ways in which intervention can be implemented in order to minimize these effects.
ContributorsTully, Mckayla Lynne (Author) / Azuma, Tamiko (Thesis director) / Gallagher, Karen (Committee member) / Department of Psychology (Contributor) / Sanford School of Social and Family Dynamics (Contributor) / Department of Speech and Hearing Science (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Abstract
Healthy eating promotes the optimal growth and development of children and can help reduce the risk of developing many health-related problems such as obesity and diabetes in both children and adults. Low-income, minority children disproportionately suffer from several chronic diseases when compared to middle to upper class non-Hispanic whites. The school is an environment in which children can learn about the importance of healthy eating by observing foods served, observing role models and interacting with a curriculum that emphasizes health and good nutrition. Parent involvement has been shown to play a role in improving health habits of children. Therefore, promoting nutrition education in the school by effectively improving parent involvement among minority parents is a promising approach.
The purpose of this action research was to examine the process of developing and evaluating a culturally sensitive, family-based nutrition newsletter for Latino parents of preschool children. The study aimed to: 1) identify challenges and explore education outreach and food-related issues facing preschool Latino families and 2) develop and evaluate a culturally sensitive, family-based nutrition education newsletter that promotes family engagement and healthy eating. The four phases of this research included: 1) a formative stage; 2) a development stage;3) an evaluation stage and 4) a sustainability stage. Descriptive statistics and thematic coding was used to analyze the data. Findings from parent and staff surveys indicated that newsletters and healthy recipes were the preferred methods of receiving food and nutrition-related information and the priority health issues for participants were diabetes and obesity. Based on the preferences of parents and staff, a family based nutrition newsletter was developed that was designed to encourage parents and children to work together while engaging with newsletter material. The newsletter was evaluated by parents and staff for content, format and effectiveness.
Overall, the newsletters were well received by parents and staff. The newsletter increased interest in nutrition, but participants wanted more information and wanted more fun activities for the children. The findings of this study indicated that the tailored approach to designing newsletters is not only feasible, but acceptable regarding the audience’s specific needs and preferences in this specific context and is a viable delivery method for nutrition education and sustainable nutrition education outreach for this Center. The development of culturally sensitive nutrition education materials that meet the needs of the specific intended audiences is discussed.
Healthy eating promotes the optimal growth and development of children and can help reduce the risk of developing many health-related problems such as obesity and diabetes in both children and adults. Low-income, minority children disproportionately suffer from several chronic diseases when compared to middle to upper class non-Hispanic whites. The school is an environment in which children can learn about the importance of healthy eating by observing foods served, observing role models and interacting with a curriculum that emphasizes health and good nutrition. Parent involvement has been shown to play a role in improving health habits of children. Therefore, promoting nutrition education in the school by effectively improving parent involvement among minority parents is a promising approach.
The purpose of this action research was to examine the process of developing and evaluating a culturally sensitive, family-based nutrition newsletter for Latino parents of preschool children. The study aimed to: 1) identify challenges and explore education outreach and food-related issues facing preschool Latino families and 2) develop and evaluate a culturally sensitive, family-based nutrition education newsletter that promotes family engagement and healthy eating. The four phases of this research included: 1) a formative stage; 2) a development stage;3) an evaluation stage and 4) a sustainability stage. Descriptive statistics and thematic coding was used to analyze the data. Findings from parent and staff surveys indicated that newsletters and healthy recipes were the preferred methods of receiving food and nutrition-related information and the priority health issues for participants were diabetes and obesity. Based on the preferences of parents and staff, a family based nutrition newsletter was developed that was designed to encourage parents and children to work together while engaging with newsletter material. The newsletter was evaluated by parents and staff for content, format and effectiveness.
Overall, the newsletters were well received by parents and staff. The newsletter increased interest in nutrition, but participants wanted more information and wanted more fun activities for the children. The findings of this study indicated that the tailored approach to designing newsletters is not only feasible, but acceptable regarding the audience’s specific needs and preferences in this specific context and is a viable delivery method for nutrition education and sustainable nutrition education outreach for this Center. The development of culturally sensitive nutrition education materials that meet the needs of the specific intended audiences is discussed.
ContributorsPazzaglia, Gina (Author) / Margolis, Eric (Thesis advisor) / Appleton, Nicholas (Committee member) / Paredes, Maria (Committee member) / Arizona State University (Publisher)
Created2016
Description
Purpose: Children with attention-deficit/hyperactivity disorder (ADHD) have been found to have central executive deficits in working memory as well as less academic success than children with typical development. The purpose of this study was to determine which components of central executive function were most closely related to parental rating scores of attention.
Method: Two hundred twenty three 2nd graders with typical development, dyslexia, developmental language disorder (DLD), or dyslexia/DLD completed three central executive tasks from the Comprehensive Assessment Battery for Children–Working Memory (Gray, Alt, Hogan, Green, & Cowan, n.d.). Parents of the children completed the ADHD Rating Scale-IV: Home Version for their child. None of the participants had been diagnosed with ADD/ADHD
Results: When diagnostic group performance was compared we found significant differences on each central executive task. When ADHD group performance was compared we found a significant between-group performance only on the n-back visual task with the high-risk group scoring lower than the other two groups. ADHD rating scores predicted a significant amount of variance for each central executive task, but percentages were small (3%-6%).
Discussion: Working memory is known to be related to attention control. Stronger attentional control is associated with a higher working memory performance. Our study showed that children most at risk for ADD/ADHD based on parent ratings scored lowest on the visuospatial task, likely because rehearsal of visuospatial information is not possible so relies more heavily on attention. This study is a step toward considering how attention affects working memory performance so that both can be considered when designing instruction and interventions.
Method: Two hundred twenty three 2nd graders with typical development, dyslexia, developmental language disorder (DLD), or dyslexia/DLD completed three central executive tasks from the Comprehensive Assessment Battery for Children–Working Memory (Gray, Alt, Hogan, Green, & Cowan, n.d.). Parents of the children completed the ADHD Rating Scale-IV: Home Version for their child. None of the participants had been diagnosed with ADD/ADHD
Results: When diagnostic group performance was compared we found significant differences on each central executive task. When ADHD group performance was compared we found a significant between-group performance only on the n-back visual task with the high-risk group scoring lower than the other two groups. ADHD rating scores predicted a significant amount of variance for each central executive task, but percentages were small (3%-6%).
Discussion: Working memory is known to be related to attention control. Stronger attentional control is associated with a higher working memory performance. Our study showed that children most at risk for ADD/ADHD based on parent ratings scored lowest on the visuospatial task, likely because rehearsal of visuospatial information is not possible so relies more heavily on attention. This study is a step toward considering how attention affects working memory performance so that both can be considered when designing instruction and interventions.
ContributorsCleveland, Alexandra (Author) / Gray, Shelley (Thesis director) / Azuma, Tamiko (Committee member) / College of Health Solutions (Contributor) / Barrett, The Honors College (Contributor)
Created2019-12