The study aimed to examine whether an experimental imagery intervention, which elicited ecological representations of self, was more effective in enhancing vividness of movement imagery, action control and performance ability than a conventional imagery intervention and/or that of a standard, instruction intervention. In order to test this hypothesis, a sample of 36 young ballet dancers (11-13 years) were secured from five reputable ballet schools and randomly assigned to three groups (n = 12) for the purposes of conducting a true experiment: a standard control group, an imagery control group and an experimental imagery group. Descriptive statistics and frequencies were conducted for all instruments used to describe and represent single variables of interest. Parametric and nonparametric statistical procedures were used to determine whether significant differences existed between the three groups for measures of vividness of movement imagery, action control and performance ability. Additional emerging relationships and trends were explored through bivariate correlational analyses, multiple stepwise regression procedures, a factor analysis as well as MANOVA and ANOVA statistical procedures. The results of the study were varied and some interesting trends were observed. Contrary to what was expected, the results revealed significant differences across the three groups for mean difference scores of performance ability, in favour of the standard control group. In particular, the standard control group revealed positive benefits in performance ability while the imagery control and experimental imagery groups revealed deteriorations in performance ability. The experimental imagery group was found to be significantly different from the imagery control group for mean difference measures of internal vividness ofmovement imagery. However, the study failed to reveal significant variations in mean difference scores for action control across the three groups. Furthermore, the results indicated that external and internal vividness of movement imagery were found to be significantly correlated with performance ability for the entire sample (N = 36) and across the two imagery groups (N = 24) respectively. Finally, numerous significant and near-significant relationships were observed between measures of vividness of movement imagery, action control and performance ability. The results were discussed in relation to the literature on mental imagery, ecological self, action control and development. / Thesis (M.A.)-University of Natal, Pietermaritzburg, 2001.

In response to challenging situations physiological and psychological adaptations result in elevated levels of arousal and when these levels are 'optimal' performance is enhanced. There are however, limitations to the amount of physiological and mental stimulation one can tolerate, with cumulative fatigue effects being the outcome when stressful conditions are imposed on the individual over an extended period of time. As a result of the extreme physical and cognitive demands placed on military forces while in combat, with soldiers being thrust into battle and required to make critical life-or-death determining decisions followed by appropriate motor responses, the physical and psychological capabilities of the troops are pushed to maximal limits, often resulting in undesirable decrements in physical and mental performance, with consequential human and materiel losses. Thirty-two soldiers participated in a battery of combat-related field and laboratory tests, first under 'normal' conditions with no prior physical activity and then immediately after the participation of an intensive bout of exercise. Physiological and perceptual responses plus standard of performance were measured at various stages of testing. Results of the Rating of Perceived Exertion (RPE), Body Discomfort Scale and heart rate responses revealed significantly higher levels of psychophysical strai,n in response to the strenuous physical activity. Despite these findings, the electromyographic (EMG) activity and efficiency of the combat-related skills were not negatively affected. Rather, nominal improvements in post-activity performance were noted, specifically response time, and this was attributed to elevated arousal and activation as a result of the exercise that was of sufficient duration to enhance arousal without imposing long term cumulative fatigue effects.

Flow is a mental state characterised by a feeling of energised focus, complete involvement and success when fully immersed in an activity. The dimensions of and the conditions required for flow to occur have been explored in a broad spectrum of situational contexts. The close relationship between flow and peak performance sparked an interest in ways to induce flow. However, any process of flow induction requires a measure to trace the degree to which flow is in fact occurring. Self-reports of the flow experience are subjective and provide ad hoc information. Psycho-physiological measures, such as EEG, can provide objective and continuous indications of the degree to which flow is occurring. Unfortunately few studies have explored the relationships between psycho-physiological measures and flow. The present study was an attempt to determine the EEG correlates of flow under conditions of peak performance. Twenty participants were asked to perform a continuous visuomotor task 10 times. Time taken per task was used as an indicator of task performance. EEG recordings were done concurrently. Participants completed an Abbreviated Flow Questionnaire (AFQ) after each task and a Game Flow Inventory (GFI) after having finished all 10 tasks. On completion, performance times and associated flow scores were standardised where after the sample was segmented into a high flow - peak performance and a low flow - low performance level. Multi-variate analysis of variance (MANOVA) was conducted on the performance, flow and EEG data to establish that a significant difference existed between the two levels. In addition, a one-way analysis of variance between high and low flow data was conducted for all variables and main effects were established. Inter-correlations of all EEG data at both levels were then conducted across four brain sites (F3, C3, P3, O1). In high flow only, results indicated increased lobeta power in the sensorimotor cortex together with a unique EEG pattern showing beta band synchronisation between the prefrontal and sensori-motor areas and de-synchronisation between all other areas, while all other frequencies (delta, theta, alpha, lobeta, hibeta, and gamma) remained synchronised across all scalp locations. These findings supported a theoretical neuropsychological model of flow. / Psychology / D. Com. (Consulting Psychology)

The purpose of this research was to investigate if various psychological wellbeing assessments can predict maximal strength performance and self-scored rating of perceived exertion (RPE) in the back squat. Fifty-eight resistance-trained males and females were recruited, and reported to the laboratory on one day. Subjects completed eight different scales and questionnaires before completing one-repetition maximum (1RM) testing of the squat, followed by two single-repetition sets at 30%, 40%, 50%, 60%, 70%, 80%, and 90% of 1RM, and a set to volitional fatigue at 70% of 1RM. Cognitive anxiety and hypersomnia were found to be positive and negative predictors (p<0.05), respectively, of 1RM performance. Further, self-confidence, grit, and perceived recovery status were significant negative predictors of RPE (p<0.05). Finally, PRS was discovered to be a positive predictor of subject-reported 1RM self-efficacy (b=0.39, t=3.14, p<0.01, R2=0.15). / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2017. / FAU Electronic Theses and Dissertations Collection

This thesis takes as its starting point the observation that the authorship of the creative product of orchestral performances has been, and continues to be, over-attributed to the conductor. This is reflected both in popular perceptions and in the scholarly attention given to the conductor's leadership role, as well as in orchestral practices which privilege the conductor's artistically superior position within the orchestra through rehearsal and performance rituals and in remuneration and marketing. Although existing research has challenged the perception that the authority of the conductor is absolute, none has offered alternative explanations for how best to attribute the authorship of orchestral performances. Through a three-phased mixed-methods empirical study including an online questionnaire, in-depth interviews, and a newly developed method of data collection utilising an online variation of video-stimulated recall to capture musician experiences in real-life rehearsal and performance settings, this research contributes to an understanding of the social psychology of orchestral performance by identifying what prompts musicians' decision-making regarding how and when to play their parts. The analysis of the data has resulted in the development of a theoretical Framework of Influence and Action in Orchestral Performance that offers a new way of conceptualising authorship in performance through a 'theory of influence'. It concludes with an exploration of the implications of this revised view of authorship for existing orchestral practices, group creativity research, and our understanding of how the relationships enacted in the micro-socialities of orchestral performance reflect larger social formations.

Flow is a mental state characterised by a feeling of energised focus, complete involvement and success when fully immersed in an activity. The dimensions of and the conditions required for flow to occur have been explored in a broad spectrum of situational contexts. The close relationship between flow and peak performance sparked an interest in ways to induce flow. However, any process of flow induction requires a measure to trace the degree to which flow is in fact occurring. Self-reports of the flow experience are subjective and provide ad hoc information. Psycho-physiological measures, such as EEG, can provide objective and continuous indications of the degree to which flow is occurring. Unfortunately few studies have explored the relationships between psycho-physiological measures and flow. The present study was an attempt to determine the EEG correlates of flow under conditions of peak performance. Twenty participants were asked to perform a continuous visuomotor task 10 times. Time taken per task was used as an indicator of task performance. EEG recordings were done concurrently. Participants completed an Abbreviated Flow Questionnaire (AFQ) after each task and a Game Flow Inventory (GFI) after having finished all 10 tasks. On completion, performance times and associated flow scores were standardised where after the sample was segmented into a high flow - peak performance and a low flow - low performance level. Multi-variate analysis of variance (MANOVA) was conducted on the performance, flow and EEG data to establish that a significant difference existed between the two levels. In addition, a one-way analysis of variance between high and low flow data was conducted for all variables and main effects were established. Inter-correlations of all EEG data at both levels were then conducted across four brain sites (F3, C3, P3, O1). In high flow only, results indicated increased lobeta power in the sensorimotor cortex together with a unique EEG pattern showing beta band synchronisation between the prefrontal and sensori-motor areas and de-synchronisation between all other areas, while all other frequencies (delta, theta, alpha, lobeta, hibeta, and gamma) remained synchronised across all scalp locations. These findings supported a theoretical neuropsychological model of flow. / Psychology / D. Com. (Consulting Psychology)

M.A. / This study was conducted to ascertain whether there is a significant relationship between, parental pressure, stress levels and athletic performance in high school track and field athletes. The question can be asked whether parental pressure will result in increased stress levels in the athlete and therefore poorer performance? Sixty-six high school track and field athletes, between the ages of 13 and 18 years, were selected for the study. The athletes were taken from training groups and an Afrikaans high school to Provide a sample that included both elite and social athletes. The IPAT-Anxiety Scale, Sport Competition Anxiety Test (SCAT), SASOL junior tables and three self-designed questionnaires were used to determine the athletes' stress levels, amount of parental pressure and performance measurements. Significant relationships were found between parental pressure, increased stress levels and poorer performance. The more parental pressure experienced by the athlete the higher his stress levels and consequently the poorer his performance.

No description available.

Intrusions, or interruptions by others, are a common phenomenon in the modern workplace (Grove, 1983; Jett & George, 2003), particularly in the computing and information-technology (CIT) industry, as cross-specialty, and cross-team collaborations become more common (Beck et al., 2001). The present study examines the relationship between day-to-day intrusions (measured Monday, Tuesday, and Wednesday) and strain reactions and perceived job performance over the week (measured on Thursday) among 150 CIT employees. Using a number of resource-based theories (i.e., Conservation of Resources, Ego Depletion Model, Cognitive Fatigue Model), I hypothesize that participants experiencing more frequent intrusions on a day-to-day basis will experience greater levels of overall strain reactions (i.e., fatigue, self-regulation failure, and cognitive failure), and lower levels of overall perceived job performance for the week. To test these hypotheses, I applied a micro-macro multi-wave design, such that intrusions were measured at the end of three consecutive workdays (Level-1 Predictors) and strain reactions and performance measured on the fourth day (Level-2 Outcomes). Using Structural Equation Modeling and the technique put forth by Croon and van Veldhoven (2007), I specified four models to test my hypotheses, wherein level-1 variables (i.e., day-to-day intrusions) predicted level-2 outcomes (i.e., week-level fatigue, self-regulation failure, cognitive failure, and perceived performance). I found that day-to-day intrusions were significantly positively associated with fatigue, self-regulation failure, and perceived performance. However, day-to-day intrusions were not significantly associated with cognitive failure. These results suggest that intrusions may consume time and self-regulatory resources but may not consume cognitive resources, and that although intrusions cause impairment from a physical and self-regulatory perspective, they may not inhibit cognitive functioning. Future research should further investigate the relationship between intrusions and cognitive functioning. The present study is one of the first to explicitly study intrusions and recognize it as a stressor that influences both strain and performance variables. This is critical as intrusions become a more prominent fixture in the American workplace. This study also contributes to our understanding of the use of micro-macro approaches to statistical analyses, and provides additional insight into how occupational health psychologists can test long-held assumptions; namely day-to-day stressors contribute to long-term strain.

Indiana University-Purdue University Indianapolis (IUPUI) / Women who fail to confront sexism can experience negative intrapersonal consequences, such as greater negative self-directed affect (negself) and greater obsessive thoughts, particularly if they are highly committed to challenging sexism. Female undergraduates (N = 392) were sampled to investigate whether failing to confront past sexism influences future task performance and whether any effects on performance occur through the depletion of cognitive resources. Participants were randomly assigned to recall either confronting or failing to confront past sexism, then completed measures of affect, obsessive thoughts, working memory, and performance. Women who recalled failing to confront were expected to have greater negself and obsessive thoughts related to the situation and lower working memory and performance, and desire to respond to the situation was expected to moderate these effects. As predicted, compared with women who recalled confronting, women who recalled failing to confront reported greater negself. Contrary to predictions, there was no significant effect of confrontation condition on obsessive thoughts, working memory, or performance. However, condition interacted with desire to confront, such that the more women who recalled failing to confront wanted to respond to the situation, the more negself they reported and the lower their working memory. In addition, for women who recalled confronting, greater desire to respond was associated with higher performance, while desire to respond was unrelated to performance for women who recalled failing to confront. In contrast to predictions, neither obsessive thoughts nor working memory mediated the failure to confront-performance relationship, and there was no evidence of moderated mediation. In sum, although the cognitive variables of obsessive thoughts and working memory did not mediate the effect of failing to confront on performance, the results nevertheless demonstrate the importance of confronting sexism, particularly when one wants to do so, and have important implications for settings like the workplace where women may face discrimination and have to decide whether or not to confront.