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Effets de la pratique d'activité physique et de méditation de pleine conscience sur les performances cognitives et le stress d'élèves du primaireRichelme, Rémi January 2017 (has links)
Les manifestations de stress semblent de plus en plus présentes chez nos jeunes. C’est pourquoi des interventions pouvant amener une réduction de stress sont pertinentes à intégrer dans nos écoles. Parallèlement, toujours avec le souci d’aider les jeunes dans leur réussite éducative, des interventions favorisant l’apprentissage et les performances académiques sont tout aussi importantes à intégrer dans nos réseaux éducatifs. L’activité physique et la méditation de pleine conscience semblent être des activités prometteuses à ces égards.
L’objectif de cette recherche est de déterminer auprès de jeunes l’effet immédiat sur les performances cognitives et le stress perçu des interventions suivantes :
1- Quinze minutes d’activité physique;
2- Quinze minutes de méditation de pleine conscience;
3- Quinze minutes d’activité physique et de méditation de pleine conscience;
4- Quinze minutes d’écoute passive d’un documentaire.
Pour ce faire, 82 participants ont été recrutés dans une école primaire de la région de Sherbrooke. Chaque participant a effectué chacune de ces conditions à une seule reprise. Pour mesurer les performances cognitives, les tests de Stroop et du Tracé ont été utilisés alors que le stress perçu a été mesuré à l’aide d’une échelle visuelle analogique. Une amélioration significative des performances cognitives a été remarquée pour les jeunes ayant performé sous la médiane lors de la condition témoin. De plus, toutes les interventions, y compris l’intervention témoin, ont engendré une réduction significative du stress perçu et aucune différence significative entre les interventions n’a été observée. Ces résultats soutiennent l’utilisation des interventions d’activité physique et de méditation de pleine conscience dans les écoles primaires. De plus, cette recherche répond à plusieurs critiques effectuées dans la littérature scientifique. En effet, les interventions comprenant de la pleine conscience ont été dans le cadre de cette étude standardisées et elles sont complètement reproductibles. Les participants ont aussi indiqué leur niveau d’appréciation ainsi que la fréquence à laquelle ils désireraient pratiquer de la méditation de pleine conscience. Finalement, ce projet de recherche innove en mesurant des effets immédiats chez les jeunes de l’intervention de méditation de pleine conscience en plus de combiner la pratique d’activité physique et celle de la méditation de pleine conscience.
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The Relationship Between Mindfulness and Work-Related StressAndersson, Malin, Engervall, Magnus January 2017 (has links)
Stress is both a health risk and an economic risk for our society. Employers search for ways to offer possible stress reducers for their employees. Mindfulness as a stress reducer is a fairly new research area but with a good amount of research papers suggesting that mindfulness programmes over several weeks are successful in reducing subjective perceived stress as well as physiological stress, such as blood pressure and cortisol levels. This study aims to examine whether mindfulness could show positive effects on stress at work, after only one mindfulness session, compared to being on an extended break. Measurements includes the Shirom-Melamed Burnout Questionnaire (SMBQ), blood pressure and pulse. The results show that engaging in one single mindfulness session does have an effect on lowering blood pressure as well as lowering perceived tension, which is one of four parts of the SMBQ.
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Understanding the links of Mindfulness, Relationship Satisfaction, and Sexual SatisfactionGreer, Elizabeth N. 01 January 2017 (has links)
The purpose of the present study was to examine the relationship between mindfulness and its link to sexual satisfaction and relationship satisfaction. Data were collected from 809 individuals (18.8% bisexual, 60.7% straight, 19.2% gay/lesbian) in romantic relationships. Participants completed an online survey to measure mindfulness (five facets: observing of experience, describing with words, acting with awareness, non judging of inner experience, non reactivity to inner experience), sexual satisfaction, and relationship satisfaction. Results from two multivariate analyses (predicting sexual satisfaction and relationship satisfaction) revealed that relationship satisfaction is significantly predicted by three of the five facets of mindfulness – acting with awareness, describing with words, and non judging of inner experience. Sexual satisfaction was significantly predicted by the non judging of inner experience facet of mindfulness. Non judging of inner experience was the only facet that significantly predicted both relationship and sexual satisfaction. These findings indicate that when individuals are able to take a non-evaluative stance towards their sensations, cognitions, and emotions, they are more likely to be satisfied. Future research and clinical intervention for improving satisfaction may benefit from focusing on mindfulness related to the non judging of inner experience. Implications for clinical practice and future research will be discussed.
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Ohm … Pardon the Interruption! An Exploration of Mindfulness as a Buffer against the Effects of IntrusionsFletcher, Keaton Allen 29 June 2016 (has links)
Previous research has provided a helpful, albeit narrow, understanding of task interruptions as related to outcomes such as wellness and performance (e.g., Eyrolle & Cellier, 2000). Building on this foundation by viewing interruptions through the broader theoretical context of the theory of mental workload, this study sought to explain the cognitive processes underlying the negative performance effects often associated with interruptions and to apply an intervention aimed at mitigating these effects. Specifically, mindfulness has emerged as a promising method for reducing the cognitive burden of interruptions. This study examined the effects of intrusions (a type of interruption) on psychological strain and performance through perceived mental workload. Although perceived mental workload did predict strain outcomes, the overall mediation models failed to reach significance. Results also failed to support the hypothesized effect of state mindfulness as a potential moderator. A set of post hoc analyses, however, found that intrusion perceptions acted as a mediator between intrusion condition and psychological strain outcomes. Further, this mediation was moderated by state mindfulness, which in turn was moderated by the intrusion time. Specifically, the indirect effect of intrusion condition on strain outcomes was such that individuals experienced more strain if they received an intrusion compared to those who were not given an intrusion, unless they completed the form quickly and were also low on state mindfulness, in which case there was no difference in strain outcomes based on whether they experienced an intrusion. Together, these results suggest that intrusion perceptions play key roles in strain outcomes, and that moderators of these relationships should be further explored.
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The Role of Home Practice Engagement in a Mindfulness-Based InterventionEpstein, Dawn E. January 2016 (has links)
<p>Over the last three decades, there has been a precipitous rise in curiosity regarding the clinical use of mindfulness meditation for the self-management of a broad range of chronic health conditions. Despite the ever-growing body of evidence supporting the use of mindfulness-based therapies for both medical and psychological concerns, data on the active ingredients of these mind-body interventions are relatively scarce. Regular engagement in formal mindfulness practice is considered by many to be requisite for generating therapeutic change; however, previous investigations of at-home practice in MBIs have produced mixed results. The equivocal nature of these findings has been attributed to significant methodological limitations, including the lack of standardized, systematic practice monitoring tools, and a singular focus on practice time, with little attention paid to the nature and quality of one’s practice. The present study used a prospective, observational design to assess the effects of home-based practice on dispositional mindfulness, self-compassion, and psychological functioning in twenty-eight people enrolled in an MBSR or MBCT program. To address some of the aforementioned limitations, the present study collected detailed weekly accounts of participants’ home-based practice engagement, including information about practice time (i.e., frequency and duration), exercise type, perceived effort and barriers to participation, and practice quality. Hierarchical multiple regression was used to examine the relative contribution of practice time and practice quality on treatment outcomes, and to explore possible predictors of adherence to at-home practice recommendations. As anticipated, practice quality and perceived effort improved with time; however, rather unexpectedly, practice quality was not a significant predictor of treatment-related improvements in psychological health. Home practice engagement, however, was predictive of change in dispositional mindfulness, in the expected direction. Results of our secondary analyses demonstrated that employment status was predictive of home practice engagement, with those who were unemployed completing more at-home practice on average. Mindfulness self-efficacy at baseline and previous experience with meditation or other contemplative practices were independently predictive of mean practice quality. The results of this study suggest that home practice helps generate meaningful change in dispositional mindfulness, which is purportedly a key mechanism of action in mindfulness-based interventions.</p> / Dissertation
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Conceptual and experiential self-focus in eating disordersRawal, Adhip January 2009 (has links)
This thesis reports five studies investigating cognitive processes in eating disorder (ED) psychopathology. Chapter 1 describes background information about EDs. Chapter 2 reviews cognitive theories of Anorexia Nervosa (AN), and discusses how integration of a process-focused framework, originally applied to depression, may advance under-standing of maintaining mechanisms in AN. Chapter 3 reports a focus group with AN patients that explores features of the subjective experience of the disorder. Findings highlight ruminative, avoidant and discrepancy-based thinking: features that are suggested to be indicative of a ‘conceptualising’ mode of processing. Patients’ reports suggest positive effects of a body-mindfulness group, which encourages an alternative, ‘experiential’ mode of processing. Chapter 4 presents data on rumination, experiential avoidance, negative self-beliefs and underlying assumptions in an analogue population and shows elevated levels for ED-concerned individuals on all of these measures. Chapter 5 examines mode of processing effects (conceptual vs. experiential) in an analogue population. Findings show differential stress-induced emotional reactivity, particularly in the ED-concerned group. Chapter 6 investigates mode of processing effects in a sample of AN patients. Results confirm that modes of processing have differential effects on stress-induced emotional reactivity. Chapter 7 presents data from a 10-month follow-up of AN patients. This study shows that changes in ED-symptoms are associated with changes in rumination, avoidance and aspects of schematic thinking. Differential stress-induced reactivity is associated with outcome. Finally, chapter 8 discusses theoretical and clinical implications of this research and the mode of processing framework in EDs, particularly AN, as well describing how future investigations may continue integrating this framework to the study of ED psycho-pathology. The current findings suggest that both cognitive-affective content and the underlying mental processing activity need consideration in cognitive models of EDs.
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Stop. Breathe. Be. A pilot study examining mindfulness training to improve the socioemotional wellbeing of youth with autism spectrum disorderThom, Katherine 12 September 2016 (has links)
Adolescence is challenging time for youth with autism spectrum disorder (ASD), who generally exhibit a myriad of psychosocial difficulties. While this developmental period represents an important window for intervention, few evidence-based programs exist. Recent research suggests that interventions targeting emotion regulation (ER) skill deficits in ASD may represent a promising approach to promoting more favourable outcomes for these youth (Mazefsky et al., 2014). Nurturing mindfulness has been shown to be an effective means of improving ER and wellbeing in diverse child and adult populations, although research in ASD is limited. This pilot study evaluated the impact of a 9-week mindfulness intervention on the ER and socioemotional functioning of 14 adolescents (13-17 years) with high functioning ASD using a pre-test post-test design. Parents reported statistically significant changes of small to medium effect size in adolescents’ overall problem behaviours and social skills, ER, adaptability, hyperactivity, and withdrawal behaviours. Additionally, parents reported changes of small effect size that approached significance for adolescents’ anxiety symptoms and atypicality. Adolescents reported changes of small effect size that were statistically significant for anxiety symptoms and interpersonal functioning, and non-significant for depression and social stress symptoms. Changes in many parent-reported outcome variables showed moderate to strong correlations with home practice adherence and parent-reported changes in ER. Qualitative observations of program impact and social acceptability were positive and supported the quantitative findings. The results provide promising evidence for mindfulness training with youth with ASD. Implications for assessment, intervention, and future research are discussed. / October 2016
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Present with an Uncertain Future: Dispositional Mindfulness, Covariation Bias, and Event-Related Potential Responses to Emotional Stimuli in Uncertain ContextsGoodman, Robert J. 01 January 2014 (has links)
Uncertainty represents a robust threat that can amplify aversive experiences and exaggerate negative expectations about uncertain future outcomes. Mindfulness – an open and receptive attention to present moment experiences -- has been shown to facilitate adaptive regulation when faced with a variety of distinct emotional threats. Reduced experiential avoidance and equanimity in the face of unpleasant emotional experiences have been theorized as central to these emotional regulatory benefits. The present study explored whether dispositional mindfulness would promote adaptive responses to uncertainty during the anticipation of, and after exposure to emotional stimuli, as indicated by self-reports and neural (event-related potential) markers of anticipation and appraisal. Participants were exposed to stimulus cues that informed them about the valence of a subsequent emotional picture as neutral, aversive, or uncertain. Consistent with past research, uncertainty during the anticipation of an emotional stimulus amplified unpleasant stimulus appraisals, and participants demonstrated biased expectations to associate uncertainty with aversiveness. Dispositional mindfulness was associated with lower expectations for unpleasant stimuli, and was found to amplify the effect of uncertainty on a cortical marker of stimulus appraisal called the late positive potential (LPP). Traits that contrasted with mindfulness predicted opposite patterns of association with these measures. However, these findings were directly the opposite of findings from past research. A theoretically defensible explanation is discussed for these findings and suggestions were made for future research on the role of mindfulness on ERP variability. The results from the present study contribute to a growing body of evidence that suggests that uncertainty during the anticipation of potentially negative future outcomes can exert a potent downstream influence on emotional anticipation and appraisal processes. Further research is needed to clarify the role of dispositional mindfulness during emotional stimulus anticipation and appraisal following uncertainty.
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Determinants of Stress and Effects on Performance in Internal Medicine ResidentsBraun, Sarah 01 January 2015 (has links)
The purpose of the present study was to assess: a) perceived stress, burnout, depression, and empathy at three time points in internal medicine residents, b) the role of gender and trait mindfulness in stress response during residency and c) to evaluate the impact these variables have on performance evaluations. Additionally, specific tasks of the residency that may contribute to the experience of stress and burnout were evaluated to test a model of job strain. Stress predicted subsequent burnout and depression. Burnout predicted subsequent depression, and stress mediated this relationship. Women reported higher mean levels of empathy and burnout than men. The exploratory measure of job strain was not significantly related to stress outcomes. The acting with awareness facet of mindfulness was negatively related to burnout and depression. Performance was both negatively and positively related to stress outcomes. The results are discussed within the context of the current literature.
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Dispositional Mindfulness as a Moderator of Electrocortical and Behavioral Responses to Affective Social StimuliQuaglia, Jordan T. 29 April 2013 (has links)
Numerous studies have linked dispositional mindfulness to enhanced emotion regulation. The present research examined dispositional mindfulness as a predictor of emotion regulation in social affective contexts. Participants completed passive viewing and Emotional Go/No-Go tasks involving social affective stimuli (happy, neutral, and fearful facial expressions). Event-related potentials (ERPs) and behavioral responses were examined to discern whether dispositional mindfulness predicted differential neural and behavioral responses indexing attention to, awareness of, and inhibitory control over automatic responses to affective social stimuli. Dispositional mindfulness predicted larger (more negative) N100, N200 and No-Go N200 amplitudes during the Emotional Go/No-Go task, but was not associated with amplitude of the Late Positive Potential during the passive viewing task. Dispositional mindfulness also predicted faster response times (RT) to target stimuli that were not attributable to a speed-accuracy tradeoff. No relations were found between mindfulness and RT variability nor accuracy. Implications for understanding mindfulness and early processes of social emotion regulation are discussed.
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