Matching Items (46)
Description
For over a century, researchers have been investigating collective cognition, in which a group of individuals together process information and act as a single cognitive unit. However, I still know little about circumstances under which groups achieve better (or worse) decisions than individuals. My dissertation research directly addressed this longstanding question, using the house-hunting ant Temnothorax rugatulus as a model system. Here I applied concepts and methods developed in psychology not only to individuals but also to colonies in order to investigate differences of their cognitive abilities. This approach is inspired by the superorganism concept, which sees a tightly integrated insect society as the analog of a single organism. I combined experimental manipulations and models to elucidate the emergent processes of collective cognition. My studies show that groups can achieve superior cognition by sharing the burden of option assessment among members and by integrating information from members using positive feedback. However, the same positive feedback can lock the group into a suboptimal choice in certain circumstances. Although ants are obligately social, my results show that they can be isolated and individually tested on cognitive tasks. In the future, this novel approach will help the field of animal behavior move towards better understanding of collective cognition.
ContributorsSasaki, Takao (Author) / Pratt, Stephen C (Thesis advisor) / Amazeen, Polemnia (Committee member) / Liebig, Jürgen (Committee member) / Janssen, Marco (Committee member) / Fewell, Jennifer (Committee member) / Hölldobler, Bert (Committee member) / Arizona State University (Publisher)
Created2013
Description
Incidental learning of sequential information occurs in visual, auditory and tactile domains. It occurs throughout our lifetime and even in nonhuman species. It is likely to be one of the most important foundations for the development of normal learning. To date, there is no agreement as to how incidental learning occurs. The goal of the present set of experiments is to determine if visual sequential information is learned in terms of abstract rules or stimulus-specific details. Two experiments test the extent to which interaction with the stimuli can influence the information that is encoded by the learner. The results of both experiments support the claim that stimulus and domain specific details directly shape what is learned, through a process of tuning the neuromuscular systems involved in the interaction between the learner and the materials.
ContributorsMarsh, Elizabeth R (Author) / Glenberg, Arthur M. (Thesis advisor) / Amazeen, Eric (Committee member) / Brewer, Gene (Committee member) / Arizona State University (Publisher)
Created2013
Description
The benefits of exercise have been recommended in typical and other special populations. However, the evidence for persons with Down syndrome (DS) is still limited. This study was aimed at investigating the impact of an acute bout of aerobic exercise intervention on motor performance, executive function and intrinsic motivation in adolescents and young adults with DS. Ten participants with DS were assigned to an exercise group, who walked on a incremental treadmill protocol for 20 minutes. The exercise intensity was achieved at 66% of their predicted maximum heart rate. Another ten participants with DS were assigned to an attentional control group, who watched a video for 20 minutes. Measures of fine manual dexterity (e.g., Purdue Pegboard test), manual force production (e.g., grip strength test), processing speed (e.g., visual choice reaction time test), verbal processing (e.g., verbal fluency test), attention shifting ability (e.g., The Dimensional Card sorting test), and inhibitory control (e.g., Knock and Tap test) were tested pre and post intervention. An intrinsic motivation scale (e.g., enjoyment and effort) was conducted after the intervention. First, results showed participants significantly improved their performance in manual force production and Knock and Tap Test after the exercise intervention. While it has been proposed that exercise increases arousal status, neurotransmitters, or cerebral vasculature, the exact mechanisms in persons with DS are still unknown. However, our results showed that after treadmill walking, motor and cognitive improvements can be found in individuals with DS, even in a single exercise session. In addition, participants reported higher scores in enjoyment after video viewing than exercise, which may a result from musical effect or too much emphasis on external rewards in their early participation in exercise. These may imply that participants had low intrinsic motivation to an active lifestyle. Further, scores in effort were significantly higher after exercise than video viewing, which indicated their capabilities to perceive their physical exertion. However, other motivational regulations (e.g., introjected and identified regulations) have shown the relationship with exercise behavior in this population. Thus, further study should consider divergent motivational factors in order to implement an effective exercise program.
ContributorsChen, Chih-Chia (Author) / Ringenbach, Shannon D.R. (Thesis advisor) / Crews, Debra (Committee member) / Kulinna, Pamela (Committee member) / Amazeen, Eric (Committee member) / Arizona State University (Publisher)
Created2013
Description
Background: Childhood obesity is one of the most serious public health concerns in the United States and has been associated with low levels of physical activity. Schools are ideal physical activity promotion sites but school physical activity opportunities have decreased due the increased focus on academic performance. Before-school programs provide a good opportunity for children to engage in physical activity as well as improve their readiness to learn. Purpose: The purpose of this study was to examine the effect of a before-school running/walking club on children's physical activity and on-task behavior. Methods: Participants were third and fourth grade children from two schools in the Southwestern United States who participated in a before-school running/walking club that met two times each week. The study employed a two-phase experimental design with an initial baseline phase and an alternating treatments phase. Physical activity was monitored using pedometers and on-task behavior was assessed through systematic observation. Data analysis included visual analysis, descriptive statistics, as well as multilevel modeling. Results: Children accumulated substantial amounts of physical activity within the before-school program (School A: 1731 steps, 10:02 MVPA minutes; School B: 1502 steps, 8:30 MVPA minutes) and, on average, did not compensate by decreasing their physical activity during the rest of the school day. Further, on-task behavior was significantly higher on days the children attended the before-school program than on days they did not (School A=15.78%, pseudo-R2=.34 [strong effect]; School B=14.26%, pseudo-R2=.22 [moderate effect]). Discussion: Results provide evidence for the positive impact of before-school programs on children's physical activity and on-task behavior. Such programs do not take time away from academics and may be an attractive option for schools.
ContributorsStylianou, Michalis (Author) / Kulinna, Pamela H. (Thesis advisor) / Van Der Mars, Hans (Committee member) / Amazeen, Eric (Committee member) / Adams, Marc (Committee member) / Mahar, Matthew T. (Committee member) / Arizona State University (Publisher)
Created2014
Description
An intervention study was conducted with elementary physical education teachers and their use of a newly developed series of fitness segments called Knowledge in Action (KIA). This study was designed to enable teachers to teach healthy behavior knowledge (HBK) in their classes without sacrificing physical activity levels. This study has two phases. First, the intervention was conducted to determine the effectiveness of the KIA fitness segment intervention. Second, teachers' perceptions of both teaching HBK and the KIA fitness segments were investigated. Ten teacher participants were randomly assigned to the intervention or control group. Intervention teachers participated in professional development, provided with all teaching materials, and YouTube videos that modeled the teaching of the KIA fitness segments. Teacher fidelity was measured through observations. Student physical activity patterns were measured in randomly selected teachers' classes (both intervention and control) to determine potential physical activity pattern differences between groups. Teachers were interviewed from one to three times across the project in order to determine perceptions of teaching HBK and the KIA fitness segments. Researchers used constant comparison method to uncover possible common themes. Student knowledge was assessed pre/post using PE Metrics Standard 3 cognitive test to determine HBK changes. Data analysis included General liner models (GLM) at the student level (gender) and Hierarchical linear models (HLM) at the school level (treatment, school). There was a moderate mean teacher fidelity score (77.9%) found among the intervention teachers. HLM results showed students in the intervention group had a 3.4(20%) greater improvement in HBK scores when compared with their control counterparts (p<0.001). Student activity levels were found to be similar in both groups with 871.33 and 822.22 steps in the intervention and control groups, respectively. Although all of the teachers thought it was important to teach HBK they were not spending time on it during classes at pretest. Three common themes were discovered: (a) Effective Teacher Training of the Segments, (b), Teachers Learned a Novel Strategy, and (c) Teachers Recommended Modifications. In summary, the KIA fitness segments received favorable views and gave teachers a way to teach HBK without reducing physical activity time.
ContributorsHodges, Michael (Author) / Kulinna, Pamela (Thesis advisor) / Van Der Mars, Hans (Committee member) / Lee, Chong (Committee member) / Arizona State University (Publisher)
Created2013
Description
The non-profit National Board for Professional Teaching Standards (NBPTS) grew out of the belief that teachers were a key factor in improving student achievement and that the profession needed a way to recognize and reward exemplary classroom teachers. Over 100,000 teachers nationwide have achieved National Board Certification across all certificate areas, with approximately 1,800 of those in the area of Physical Education. Although National Board Certified Teachers (NBCTs) have been the subjects of several studies since the inception of NBPTS, very few have investigated the impact of National Board Certification (NBC) and Physical Education Teachers. This study examined the teaching effectiveness of NBCPETs and non-NBCPETs as they taught intact Physical Education classes with their own students. Participating teachers were provided with an experimental teaching unit (ETU) with a specific learning objective, but were free to plan and design the intended instruction. This study also examined the cognitive processes of NBCPETs and non-NBCPETs during interactive teaching. Academic Learning Time-Physical Education (ALT-PE), the System for Observing Fitness Instructional Time (SOFIT), stimulated-recall interviews, and document analysis were utilized for data collection. Pre- and post-tests on the ETU specific learning objective were conducted to determine student learning and three lessons were videotaped and used in subsequent analysis. Stimulated recall interviews were conducted following each lesson, lasting between 5 to 15 minutes. Themes that emerged from the stimulated-recall interviews across all teachers included: 1) building on past skills, 2) modifications to increase physical activity, and 3) goal-directed instruction. In addition, there is no difference between the amount of time students of NBCPETs engage in moderate to vigorous physical activity (MVPA) as compared to students of non-NBCPETs. Similarly, students of non-NBCPETs are provided the same amount of motor activity at an appropriate success rate (ALT-PE) as students of NBCPETs. Lastly, the results showed no difference in gain scores of the learning objectives between the two groups of teachers.
ContributorsHouston, Jennifer Ellen (Author) / Van Der Mars, Hans (Thesis advisor) / Kulinna, Pamela (Committee member) / Cocchiarella, Martha (Committee member) / Block, Martin (Committee member) / Arizona State University (Publisher)
Created2014
Description
Given the current focus on high-stakes accountability in America's public schools, this study examined teacher evaluation specific to physical education. This study revealed current teacher evaluation practices used in physical education, perceptions of school administrators related to the value of the physical education evaluation process, and the perceptions of the physical education teachers related to the value of the evaluation process. The first phase of this study was an interpretive document analysis study conducted on four separate teacher evaluation systems commonly used within the public school system to evaluate physical education teachers. Those four systems were: Marzanos teacher evaluation model, Danielson framework for teaching (FFT), Rewarding Excellence in Instruction and Leadership (REIL), and Teacher Advancement Program (TAP). A separate evaluation instrument specific to physical education created by the National Association of Sport and Physical Education (NASPE) was used as a comparative evaluation tool. Evidence suggests that two of the four teacher evaluation systems had a high percentage of alignment with the NASPE instrument (TAP 87.5%, FFT 82.5%). The Marzano teacher evaluation model had the least amount of alignment with the NASPE instrument (62.5%). The second phase of this study was a phenomenological approach to understanding administrators' and physical education teachers' perceptions to teacher evaluation specific to physical education. The participants in this study were administrators and physical education teachers from an urban school district. An informal survey and formal semi-structured interviews were used to reveal perceptions of teacher evaluation specific to physical education. Evidence from the administrator's informal survey and formal semi-structured interviews revealed four common themes: (1) "I value PE, but I live in reality" (administrators value physical education, but practice in reality); (2) "good teaching is good teaching"; (3) "I know my limitations, and I want
eed help" (relative to teacher evaluation in PE); and (4) where's the training beef? Evidence from the physical education teacher's informal survey and formal semi-structured interviews revealed three common themes: (a) physical education is valued, but not prioritized; (b) teacher evaluation in physical education is "greatly needed, yet not transparent; (c) physical educators are not confident in their evaluator.
eed help" (relative to teacher evaluation in PE); and (4) where's the training beef? Evidence from the physical education teacher's informal survey and formal semi-structured interviews revealed three common themes: (a) physical education is valued, but not prioritized; (b) teacher evaluation in physical education is "greatly needed, yet not transparent; (c) physical educators are not confident in their evaluator.
ContributorsNorris, Jason (Author) / Van Der Mars, Hans (Thesis advisor) / Beardsley, Audrey (Thesis advisor) / Kulinna, Pamela (Committee member) / Arizona State University (Publisher)
Created2014
Description
A converging operations approach using response time distribution modeling was adopted to better characterize the cognitive control dynamics underlying ongoing task cost and cue detection in event based prospective memory (PM). In Experiment 1, individual differences analyses revealed that working memory capacity uniquely predicted nonfocal cue detection, while proactive control and inhibition predicted variation in ongoing task cost of the ex-Gaussian parameter associated with continuous monitoring strategies (mu). In Experiments 2A and 2B, quasi-experimental techniques aimed at identifying the role of proactive control abilities in PM monitoring and cue detection suggested that low ability participants may have PM deficits during demanding tasks due to inefficient monitoring strategies, but that emphasizing importance of the intention can increase reliance on more efficacious monitoring strategies that boosts performance (Experiment 2A). Furthermore, high proactive control ability participants are able to efficiently regulate their monitoring strategies under scenarios that do not require costly monitoring for successful cue detection (Experiment 2B). In Experiments 3A and 3B, it was found that proactive control benefited cue detection in interference-rich environments, but the neural correlates of cue detection or intention execution did not differ when engaged in proactive versus reactive control. The results from the current set of studies highlight the importance of response time distribution modeling in understanding PM cost. Additionally, these results have important implications for extant theories of PM and have considerable applied ramifications concerning the cognitive control processes that should be targeted to improve PM abilities.
ContributorsBall, Brett Hunter (Author) / Brewer, Gene A. (Thesis advisor) / Goldinger, Stephen (Committee member) / Glenberg, Arthur (Committee member) / Amazeen, Eric (Committee member) / Arizona State University (Publisher)
Created2015
Description
Incentive travel continues to grow as a form of motivation in the work place. However, there is little research that has examined future potential incentive travelers' wants and needs from an incentive travel trip. The purpose of this study was to understand how and in what way various potential incentive travelers' beliefs, including attitudes, subjective norm, perceived behavioral control and motivation, influence their future inclusion of a significant other on an incentive travel trip using a modified theory of planned behavior. Moreover, the potential moderating effect of past inclusion of a significant other experience was examined as well. The study collected 129 usable responses from potential incentive travelers from companies based in Iowa and Arizona. The research for this project was conducted through online questionnaires that included quantitative and qualitative questions. The study used exploratory factor analysis (EFA), Pearson's correlation and multiple regression to test study hypotheses. The results of the multiple regression indicated three constructs, attitudes, subjective norm and motivation appeared to be statistically significant, while perceived behavioral control was not statistically significant in predicting potential incentive travelers' intended inclusion of a significant other. Perceived behavioral control was not significant because the control of including a significant other is dependent on the participant's employer. Pearson's correlation found a moderating effect of past inclusion of a significant other on subjective norm and perceived behavioral control. In conclusion, the results validated the theory of planned behavior in the context of incentive travelers' inclusion of a significant other.
ContributorsDorweiler, Annie (Author) / Timothy, Dallen (Thesis advisor) / Lee, Woojin (Committee member) / Kulinna, Pamela (Committee member) / Arizona State University (Publisher)
Created2012
Description
Individual differences in working memory capacity partly arise from variability in attention control, a process influenced by negative emotional content. Thus, individual differences in working memory capacity should be predictive of differences in the ability to regulate attention in emotional contexts. To address this hypothesis, a complex-span working memory task (symmetry span) was modified so that negative arousing images or neutral images subtended the background during the encoding phase. Across three experiments, negative arousing images impaired working memory encoding relative to neutral images, resulting in impoverished symmetry span scores. Additionally, in Experiment 3, both negative and arousing images captured attention and led to increased hit rates in a subsequent recognition task. Contrary to the primary hypothesis, individual differences in working memory capacity derived from three complex span tasks failed to moderate the effect of negative arousing images on working memory encoding across two large scale studies. Implications for theories of working memory and attention control in emotional contexts will be discussed.
ContributorsWingert, Kimberly Marie (Author) / Brewer, Gene A. (Thesis advisor) / Amazeen, Eric (Committee member) / Killeen, Peter (Committee member) / Goldinger, Stephen (Committee member) / Arizona State University (Publisher)
Created2015