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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Reduction of hyperactivity using progressive muscle relaxation imagery and autogenic exercises with electromyographic biofeedback /

Krieger, Gail D. R. January 1985 (has links)
No description available.
22

Jacobsonian versus Autogenic Relaxation Training: Interactions with Locus of Control

Weaver, Mark J. 01 May 1983 (has links)
The purpose of this study was to evaluate the thesis that matching locus of control with type of relaxation training enhances physiological self-control. This was accomplished by comparing the effectiveness of a somatic and a cognitive relaxation method for internal and external locus of control subjects. It was hypothesized that the two techniques vary in degree of cue salience, and that the attentional strategy of internals would interact with the cognitive approach while externals would respond better to the somatic approach. Subjects were 80 volunteers from stressful occupations who scored high on the State-Trait Anxiety Inventory A-trait scale. Forty internals and 40 externals as defined by extreme scores on the Adult Form Nowicki Strickland Locus of Control Scale were randomly assigned to either the Jacobson or Autogenic group for five weekly laboratory training sessions with daily home practice. The effectiveness of the relaxation training was measured by six dependent variables: EMG, skin temperature, heart rate, State-Trait Anxiety Inventory (A-state and A-trait scales), and self-reported home practice sessions. The data were analyzed by using analyses of variance with repeated measures. The expected interaction between locus of control and type of relaxation training was found only for heart rate. While the treatment was effective in reducing physiological and subjective anxiety for all subjects, internal locus of control subjects and those who received Jacobson training reduced muscle tension and increased temperature better than externals and subjects in the Autogenic group. Externals became more internal during training, and the allegedly stable characteristic of trait anxiety significantly decreased. The possibility that heart rate may be a less easily perceived parameter than EMG or skin temperature is discussed, and it is recommended that future research evaluate other physiological variables for enhanced responsivity under congruent conditions. The importance of further basic research on relaxation training is emphasized, and it is noted other aspects of this widely used treatment approach should be investigated for interactions with locus of control.
23

Status and Slaughter: The Psyco-social Factors that Influence Public Mass Murder

Van Geem, Stephen G. 01 May 2009 (has links)
Even though public mass shootings are relatively rare, they represent an atypical form of violence that is both sudden and yields an unprecedented amount of carnage; for these reasons, an inordinate amount of scholarship has been produced in order to isolate both the causes and effects of these rampages. As there is no clear cut and universal cause, over the past forty years numerous factors have been offered to account for these types of shootings, including bullying, peer relations, family problems, cultural conflict, demographic change, mental illness, gun culture, copycatting, and the media. While there appears to be an element of truth in each of these perspectives, all of these isolated factors focus upon only one or two surface-level influences, thus ignoring the possibility that multiple and distinct causes are interacting with one another. The aim of this study is to construct a meaningful model of motivation that is common to each situation, is to build upon psycho-social theories of crime, and to highlight which combination of specific background factors and processes is necessary to produce these vicious massacres. To answer the underlying research question, "Why do certain individuals elect this specific line of action?" this thesis will first provide a review of the relevant literature, will then emphasize three key social and psychological predisposers that combine together to negatively influence the individuals involved, and will subsequently highlight five separate and unique case studies in order to examine the proposed model.
24

Varying flux controls on timescales of autogenic storage and release processes in fluvio-deltaic environments : tank experiments

Powell, Erica Janette 15 July 2011 (has links)
Changes in external forcing having traditionally been the main area of interest in trying to understand paleo-depositional environments in sedimentary systems; however, autogenic variability has been rising in importance, while autogenic behavior has been thought of as a “noise” generator. Recently, autogenic variability has been rising in attention because decoupling allogenic signatures (externally driven) from the stratigraphic record requires robust understanding of autogenic variations (internally generated). This study aims to quantitatively measure autogenic processes under a range of flux conditions and to show that autogenic processes generate distinct signatures rather than random noise. We present data from a matrix of nine different tank experiments in order to systematically evaluate the effects of sediment flux and water discharge variations on the autogenic timescale of fluvial sediment storage and release processes and the implications of this data to the stratigraphic record. The sediment flux tow ater discharge ratio and the absolute values of these two discharges control the autogenic timescale. Variations in sediment supply yield two competing effects on the autogenic timescale. The primary sediment flux control causes a reduction in the autogenic timescale as an increase in sediment supply yields an increased rate of filling the “fluvial envelope” (the space between the maximum and minimum fluvial slopes obtained during storage and release events). In contrast, the secondary sediment flux control increases the size of the fluvial envelope and works against the primary sediment flux control. Increasing the water discharge increases the autogenic timescale by widening the fluvial envelope during the organization of the fluvial system and more importantly, diminishes the functionality of the secondary sediment control. A competition exists between these factors, causing a non-linear range of autogenic timescales for a given sediment flux to water discharge ratio. In the nine experiments here, as the ratio decreases, the secondary effects of variations in sediment supply are suppressed by the relatively high water discharge, and the timescale is more predictable using the primary sediment control. As the ratio increases, the secondary effects from sediment supply are enhanced by a poorly organized fluvial system, and the timescale converges to a narrow range. This suggests significant implications for autogenic sediment delivery and stratigraphic development in a wide range of discharge conditions in field cases. / text
25

Pilot RCT of Mindfulness-Based Stress Reduction (MBSR) Versus Progressive Muscle Relaxation (PMR) to Reduce Symptoms of Distress Among Elderly Dementia Caregivers: Results at One Year Post-Intervention

O'Donnell, Rose Marie Minna, O'Donnell, Rose Marie Minna January 2017 (has links)
Providing care for a frail older adult who is suffering from dementia has been described as a stressful experience that may erode psychological well-being and physical health of caregivers. The burden and stress is increased when the caregivers are themselves elderly. The present study investigated an 8-week stress-reduction program, Mindfulness-Based Stress Reduction (MBSR), and compared it to a similarly structured, alternative behavioral intervention, Progressive Muscle Relaxation (PMR), to determine if MBSR was as effective or more effective than PMR at reducing subjective burden, symptoms of depression, perceived loneliness or perceived stress among middle-aged and older family caregivers of persons with dementia and other neurocognitive disorders. Twenty-eight participants were randomly assigned to either MBSR or PMR. Self-report and biological measures were collected on five occasions: At the beginning and end of intervention training, and at 8 weeks, 6 months and 1 year following the end of intervention training. In addition to a packet of self-report questionnaires and home-collected salivary cortisol, a laboratory controlled emotional stress test was designed to elicit an emotionally stressful response relevant to caregivers’ experience of caregiving, and facilitate the measurement of stress-related changes in systolic blood pressure and cortisol reactivity. At 1 year post-intervention, the PMR group showed a significantly greater reduction in perceived stress and disruptive patient behaviors. A reduction in emotional reactivity to patient problem behaviors approached significance (p = .08) at 1 year post-intervention for the PMR group. The MBSR group showed significantly greater reductions in self-reported symptoms of depression and perceived isolation from pre- to post-intervention, and those changes remained significant at 8 weeks post-intervention. However, by 1 year post-intervention, interaction effects were non-significant as both groups showed similar decreases in symptoms of depression and perceived isolation. Both groups showed similar decreases in diurnal cortisol, cortisol awakening response, and daily average cortisol (but not laboratory cortisol) from pre- to post-intervention and further decreases at 8 weeks post-intervention, and showed similar reductions in magnitude of change by 1 year post-intervention. This pattern was similar for both groups with systolic blood pressure, showing decreases from pre- to post-intervention, additional decreases at 8 weeks post-intervention, and returning towards baseline by 1 year post-intervention. Both groups also reported similar increases in levels of dispositional mindfulness and self-compassion and similar improvement in overall sleep quality that was sustained at 1 year post-intervention. No changes were seen for perceived burden or loneliness. Significant correlations with amount of daily practice of the instructed stress-reduction approaches were observed for several of the dependent measures from pre- to post-intervention and 8 weeks post-intervention. From pre-intervention to 1 year post-intervention, an overall pattern emerged, where both groups showed similar improvements from pre- to post-intervention, and additional improvements at 8 weeks post-intervention, but displayed a curvilinear reduction in improvements—with some exceptions—and a return towards baseline at 6 months and 1 year post-intervention. In general, reductions in the magnitude of changes observed by 1 year post-intervention remained below baseline levels. Results suggest that both MBSR and relaxation-based interventions may be differentially effective in reducing psychological and physiological indices of chronic stress among older caregivers of relatives with neurocognitive disorders. However, further research, employing wait-list control participants, will be necessary for unambiguous interpretation of the present results.
26

Autonomic Self-Control of Clinical Relaxation as a Function of Imagery

Allen, Dean G. 01 May 1982 (has links)
The purpose of this dissertation was to test the significance of objective l y measured imagery ability on the learning of self-controled relaxation of autonomic nervous system activity. Imagery is discussed in terms of its interaction with Autogenic vs. Jacobsonian methods of training clinical relaxation. Thirty-six female subjects from a college population, representing extreme highs and lows on "spatial ability" tests were given a series of three six-session sequences of Baseline, Treatment 1, and Treatment 2, which contained silent relaxation as a control, plus Jacobsonian and Autogenic relaxation. High and low spatial ability subjects were divided into split groups (A & B) which were given Jacobsonian and Autogenic relaxation treatment in different sequence orders. Skin temperature biofeedback was used to monitor the little fingers on both hands as a general indicator of autonomic clinical relaxation. Mean temperature; temperature change within sessions; and temperature change between sessions, were analyzed by different treatment periods and spatial ability groups. The data from these groups were analyzed using an ANOVA design. There were no significant differences in mean temperature data. A nearly significant two-way interaction was found between imagery ability and treatment order during Autogenic training. Also a significant interaction was found in skin temperature change between sessions for, "Sensory" vs. "Intuitive" personality types, and a nearly significant difference for Autogenic vs. Jacobsonian treatment. It was concluded that Jacobsonian training was generally more effective than Autogenic training for inducing vascular relaxation in both high and low imagery subjects. Also it was found that Sensory perceptual types are significantly more stable in terms of day to day skin temperature variation during relaxation training, than are Intuitive perceptual types.
27

4D evolution of fluvial system and channel-fill architecture of the Cretaceous Blackhawk Formation, Wasatch Plateau, Utah: An integrated fluvial rock record analysis

Sahoo, Hiranya 20 December 2013 (has links)
Using an integrated dataset comprising outcrop, core, GPR and LiDAR data, this study targets a high-quality outcrop "window" of the upper Cretaceous Blackhawk Formation in the eastern Wasatch Plateau in central Utah, spanning a fairly large spatial (~30 km2 area comprising eight contiguous, and vertical cliff faces) and temporal (~4 my) range. This research provides field-validation and -calibration of a wider range of fluvial heterogeneity: 1) large-scale heterogeneity (10’s of m vertically and 100’s of m laterally), 2) intermediate-scale heterogeneity (1’s of m vertically and 10’s of m laterally), and 3) small-scale heterogeneity (10’s of cm vertically and 1’s of m laterally). These sandbody- to facies-scale heterogeneities generate potential for stratigraphic compartmentalization for analogous fluvial reservoirs and prospects. Moreover, these results specifically constitute an outcrop analog to the producing tight-gas fluvial reservoirs of the adjacent hydrocarbon-prolific Uinta and Piceance Basins of Utah and Colorado, including the giant Jonah Field of Wyoming. 3D virtual outcrop model generated from LiDAR-integration has helped in avulsion-scale (~1's-10's kyr) to basin-fill scale (~100's kyr-1's myr) fluvial sandbody organization analysis down to channel-storey level. This high-resolution analysis has brought several intriguing insights. single-storey sandbodies are preferentially attendant to clustering organization, whereas multi-lateral sandbodies (i.e. channel-belt) show compensational-prone behavior. Sandbody organization is broadly compensational for the lower Blackhawk Formation, where the floodplain facies diversity is the highest. In contrast, floodplain diversity decreases stratigraphically upward such that the upper Blackhawk Formation shows the least heterogeneous floodplain with clustering-prone sandbody organization. In the quest of differentiating autogenic from allogenic signal in dynamic systems where their interplay is complexly intertwined, this study presents two incised-valley examples, where resultant fluvial organization has been interpreted, contrary to conventional wisdom, to be preferentially modulated by a dominant controlling mechanism of autogenic forcing. In filling these incised valley deposits, each of which is up to ~15-20 m thick, the dominating behavior of substrate coal compaction as an autogenic mechanism supplanted allogenic forcing (i.e. sea-level fluctuation).
28

The influence of hypnosis in the context of sports-injuries : an ecosystemic perspective

Kaplan, Roleen Sandra 12 1900 (has links)
In this study an ecosystemic approach to self-hypnosis was utilised as a tool to explore and describe the healing of sport injuries. Four injured Subjects, from four different sporting activities participated in the study. Self-hypnosis/hypnosis was used as a linguistic means to perturb the problem-defining ideas within which the sport injury was embedded. Problem dis-solution involved a process of reframing each Subject's current reality through dialogue, and a new reality for each respective Subject was co-constructed through consequent linguistic differentiation. The hypnotist, participating in the linguistic domain as an equal participant, looked for intended meanings in each respective conversational exchange with the athletes, and synthesised information creatively. This process and the thinking behind each case study is described in detail in this dissertation. / Psychology / M.A. (Psychology)
29

The influence of hypnosis in the context of sports-injuries : an ecosystemic perspective

Kaplan, Roleen Sandra 12 1900 (has links)
In this study an ecosystemic approach to self-hypnosis was utilised as a tool to explore and describe the healing of sport injuries. Four injured Subjects, from four different sporting activities participated in the study. Self-hypnosis/hypnosis was used as a linguistic means to perturb the problem-defining ideas within which the sport injury was embedded. Problem dis-solution involved a process of reframing each Subject's current reality through dialogue, and a new reality for each respective Subject was co-constructed through consequent linguistic differentiation. The hypnotist, participating in the linguistic domain as an equal participant, looked for intended meanings in each respective conversational exchange with the athletes, and synthesised information creatively. This process and the thinking behind each case study is described in detail in this dissertation. / Psychology / M.A. (Psychology)
30

RELAXAMENTO PSICOFÍSICO EM CRIANÇAS

Fernandes, Elaine Ferrão 08 March 2005 (has links)
Made available in DSpace on 2016-08-03T16:34:28Z (GMT). No. of bitstreams: 1 ELAINE F FERNANDES.pdf: 724683 bytes, checksum: e96a0d1306ccd662e5059be967ebf83d (MD5) Previous issue date: 2005-03-08 / Research of bibliographical and monographical nature, this paper investigates the psychophysics relaxation in the health area, of children in a period of eight years, between January 1997 and November 2004. Initially, based in neuropsychological literature, it describes the relaxation role in homeostasis and the conscious body health, emphasizing the pleasure and painful behavior. Next, it describes and analyses several relaxation techniques, Jacobson Progressive Relaxation, Schulz Autogenos and Michaux Relaxation. To develop this research it was used 27 databases, due to the lack of production of this theme, per base. As result, it shows the total of 500 articles about relaxation, 200 of them related to children. They are national and international articles, most of them in English. Following this, it classifies these group in production by year, showing a significant increasing, although it is not systematic in number, from 14 articles in 1997 to 39 in 2004. As for the thematic, the data reveals first, the interest in pain, second in breathing problems and third in anxiety. The articles about pain, as they are in more quantity, have more detailed analysis, with discrimination by year, situation type, relaxation usage and pathology characterized by painful behavior. Finally, it is made a classification of the articles due to the usage of relaxation in clinical problems mainly the physical ones, those of affectionate-emotional psychic background, those with no usage of drugs and those with psychic background with the aid of drugs and psychiatric treatment. To discuss the results, several articles researched are also mentioned. Due to the richness of data, showing up the increasing of professionals in this health area, it is suggested further reading / Trabalho de natureza monográfica bibliográfica investiga o relaxamento psicofísico na área da saúde, em crianças, por um intervalo de oito anos, entre janeiro de 1997 e novembro de 2004. Inicialmente, com base em literatura neuropsicológica, descreve o papel do relaxamento na busca da homeostase e da consciência corporal saudável, enfocando comportamentos de prazer e dor. A seguir, descreve e analisa diversas técnicas de relaxamento, Relaxamento Progressivo de Jacobson, Autógeno de Schultz e Relaxamento de Michaux. A fim de desenvolver sua pesquisa utiliza-se de 27 bases de dados, devido a pouca produção encontrada sobre o tema, por base. Como resultados, levanta ao todo 500 artigos sobre relaxamento, sendo 200 em crianças. São artigos nacionais e internacionais, com predomínio do idioma inglês. A seguir, classifica esses artigos por ano de produção, constatando um crescimento significativo, porém não sistemático em seu número, de 14 artigos em 1997, para 39, em 2004. Quanto à temática, os dados revelam em primeiro lugar, um interesse em dor, em segundo em problemas respiratórios, e, em terceiro lugar, em ansiedade. Os artigos sobre dor, por serem os mais numerosos levantados, sofrem análise mais detalhada, com discriminação da quantidade de artigos por ano e dos tipos de situação e de patologia caracterizados por quadro álgico. Finalmente é feita uma classificação dos artigos segundo a utilização do relaxamento junto à problemática clínica predominantemente física, a de fundo psíquico afetivo-emocional, sem utilização de fármacos e, a de fundo psíquico, com intervenção psiquiátrica farmacológica. Na discussão dos resultados, vários artigos pesquisados são também comentados. Dada a riqueza dos dados, evidenciando interesse crescente de profissionais da área da Saúde na literatura levantada, sugere-se pesquisa complementar

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