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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.
381

Influences of Amplified Music

Fagelson, Marc A., Baguley, David M. 20 November 2015 (has links)
Excerpt: Tinnitus: Clinical and Research Perspectives summarizes contemporary findings from basic and clinical research regarding tinnitus mechanisms, effects, and interventions. The text features a collection of international authors, active researchers, and clinicians who provide an expansive scope of material that ensures relevance for patients and professionals. Reviews and reports of contemporary research findings underscore the text s value for classroom use in audiology and otolaryngology programs. Patients and students of audiology will benefit from the text s coverage of tinnitus mechanisms, emerging practice considerations, and expectations for outcomes--for example, recent successes of cognitive behavioral therapy, neuromodulation, and hearing aid use. These and other topics, such as the effects of noise and drugs on tinnitus, are reported in a way that enhances clinicians ability to weave such strategies into their own work. The influence of tinnitus on all aspects of life is explored, from art to medicine and communication to isolation, thereby providing clinicians and patients a deeper understanding of and greater facility managing a tinnitus experience. Finally, this text includes case studies that provide a practical view of tinnitus effects and management approaches. The editors hope that the consideration of mechanisms, interventions, and outcomes resonates with patients, clinicians, and students of audiology.
382

Tinnitius Mechanisms and Management

Fagelson, Marc A. 26 March 2013 (has links)
No description available.
383

Management of the Stressed Patient

Fagelson, Marc A., Baguley, David 06 May 2010 (has links)
No description available.
384

Introduction

Fagelson, Marc A. 01 January 2010 (has links)
No description available.
385

Den inbillade sjuke, hur mår du? : En kartläggning av skådespelares psykiska och fysiska hälsa

Söderström, Charlotte January 2010 (has links)
<p>Syftet med studien är att göra en kartläggning över hur svenska skådespelares fysiska och psykiska hälsostatus ser ut hösten 2009. De områden som undersöks är depression, ångest, sömn, stress, arbetslöshet och hälsopåverkan, hörselproblem och tinnitus, samt alkohol- och droganvändning. En länk till en webbenkät med frågor från Hospital anxiety and depression scale, Perceived stress scale, Nationell undersökning om hörsel, yrsel och tinnitus samt Swedish longitudinal occupational survey of health 2006 skickades till medlemmar i Teaterförbundets skådespelaravdelning. 533 deltagare svarade på de inledande frågorna och 425 deltagare slutförde hela enkäten.</p><p>Resultaten visar på förekomst av depression och ångest av klinisk betydelse, förekomst av sömnbesvär, samt förekomst av hög till mycket hög upplevd stress och prestationsbaserat självförtroende. Deltagarna upplever negativa konsekvenser av arbetslöshet. Det förekommer hörselproblem och tinnitus hos deltagarna samt, riskbruk gällande alkohol och droganvändning. En slutsats är att ibland de skådespelare som svarat på studien uppvisas ångestsymptom av klinisk betydelse hos mer än var tredje deltagare.</p>
386

The Reorganization of Primary Auditory Cortex by Invasion of Ectopic Visual Inputs

Mao, Yuting 06 May 2012 (has links)
Brain injury is a serious clinical problem. The success of recovery from brain injury involves functional compensation in the affected brain area. We are interested in general mechanisms that underlie compensatory plasticity after brain damage, particularly when multiple brain areas or multiple modalities are included. In this thesis, I studied the function of auditory cortex after recovery from neonatal midbrain damage as a model system that resembles patients with brain damage or sensory dysfunction. I addressed maladaptive changes of auditory cortex after invasion by ectopic visual inputs. I found that auditory cortex contained auditory, visual, and multisensory neurons after it recovered from neonatal midbrain damage (Mao et al. 2011). The distribution of these different neuronal responses did not show any clustering or segregation. As might be predicted from the fact that auditory neurons and visual neurons were intermingled throughout the entire auditory cortex, I found that residual auditory tuning and tonotopy in the rewired auditory cortex were compromised. Auditory tuning curves were broader and tonotopic maps were disrupted in the experimental animals. Because lateral inhibition is proposed to contribute to refinement of sensory maps and tuning of receptive fields, I tested whether loss of inhibition is responsible for the compromised auditory function in my experimental animals. I found an increase rather than a decrease of inhibition in the rewired auditory cortex, suggesting that broader tuning curves in the experimental animals are not caused by loss of lateral inhibition. These results suggest that compensatory plasticity can be maladaptive and thus impair the recovery of the original sensory cortical function. The reorganization of brain areas after recovery from brain damage may require stronger inhibition in order to process multiple sensory modalities simultaneously. These findings provide insight into compensatory plasticity after sensory dysfunction and brain damage and new information about the role of inhibition in cross-modal plasticity. This study can guide further research on design of therapeutic strategies to encourage adaptive changes and discourage maladaptive changes after brain damage, sensory/motor dysfunction, and deafferentation.
387

Effects of salicylate on intrinsic membrane properties of rat inferior colliculus neurons /

Edrissi, Hamidreza. January 1900 (has links)
Thesis (M.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 83-89). Also available in electronic format on the Internet.
388

Estudo da prevalência e das características do zumbido em trabalhadores expostos ao ruído ocupacional

Possani, Lissi Nara Amaral January 2006 (has links)
Introdução: O zumbido é definido como uma sensação auditiva ilusória sem a presença de um som externo. Acomete homens e mulheres, mais comumente entre 40 e 70 anos de idade, às vezes podendo ocorrer em crianças. Análises de dados epidemiológicos indicam que a exposição ao ruído é uma das causas mais comuns de zumbido. Objetivos: Os objetivos gerais deste estudo foram verificar a prevalência do zumbido em trabalhadores expostos ao ruído ocupacional e avaliar a freqüência e a intensidade do zumbido. Os objetivos específicos foram avaliar a gravidade do zumbido; analisar a presença do zumbido por sexo, cor, idade e tempo de trabalho com exposição ao ruído e analisar a relação do zumbido com as freqüências mais acometidas na audiometria e com a presença e grau da perda auditiva, independente do nexo da perda. Materiais e Métodos: Trata-se de um estudo transversal para o qual foram selecionados 362 prontuários de trabalhadores expostos a ruído ocupacional ≥80dB(NA)/8h diárias. Estes trabalhadores haviam sido submetidos a meatoscopia, anamnese clínica e ocupacional, audiometria de via aérea, avaliação de freqüência e intensidade do zumbido e à escala de avaliação da gravidade do zumbido. Conclusão: A prevalência do zumbido foi de 9,9%. Nas análises de regressão conclui-se que trabalhadores com presença de perda auditiva em pelo menos um dos ouvidos têm 2,396 vezes mais chances de ter zumbido quando comparados com os que não tem perda auditiva. Os trabalhadores com faixa etária acima ou igual a 30 anos tem 5,353 vezes mais chances de ter perda auditiva em pelo menos um dos ouvidos quando comparados com os de faixa etária menor que 30 anos. Com relação ao tempo de trabalho em contato com o ruído, a analise estatística revela que trabalhadores com diferença de 1 ano no tempo de trabalho em contato com ruído tem um risco 5,3 % (OR=1,053) maior de apresentar perda auditiva. / Background: Tinnitus is an auditory phantom sensation experienced when no external sound is present. It occurs in both men and women, and is more prevalent between the age of 40 and 70; however, it may also occur in children. Analyses of epidemiologic data indicate that exposure to noise is its most common cause. Object: The aim of this study was to investigate the prevalence and characteristics of tinnitus in noise-exposed workers. Its specific objectives were to evaluate the severity of tinnitus, to compare the presence of tinnitus with the individual’s sex, race, age, and time of exposure to noise in the workplace, and to analyze the relation between tinnitus and the most affected frequencies in audiometric tests as well as the presence and level of hearing loss. Materials and Methods: The present was a cross-sectional study for which 362 files of workers exposed to noise (≥80dB(A)/8h per day) were selected. These workers had undergone otoscopy, clinical and occupational anamnesis, audiometric test of ear conduction, and an investigation of frequency, intensity, and severity of tinnitus. Conclusion: The prevalence of tinnitus found was 9.9%. After logistic regression analyses, it was concluded that workers with hearing loss in at least one ear have 2.396 times more chance of having tinnitus than those who do not have hearing loss. Workers aged 30 or older have 5.353 times more chance of having hearing loss in at least one ear than those younger than 30. As to time of exposure to noise in the workplace, statistical analysis showed that workers with a difference of 1 year in time of exposure to noise have a 5.3% (OR=1.053) higher risk of suffering hearing loss.
389

Estudo da prevalência e das características do zumbido em trabalhadores expostos ao ruído ocupacional

Possani, Lissi Nara Amaral January 2006 (has links)
Introdução: O zumbido é definido como uma sensação auditiva ilusória sem a presença de um som externo. Acomete homens e mulheres, mais comumente entre 40 e 70 anos de idade, às vezes podendo ocorrer em crianças. Análises de dados epidemiológicos indicam que a exposição ao ruído é uma das causas mais comuns de zumbido. Objetivos: Os objetivos gerais deste estudo foram verificar a prevalência do zumbido em trabalhadores expostos ao ruído ocupacional e avaliar a freqüência e a intensidade do zumbido. Os objetivos específicos foram avaliar a gravidade do zumbido; analisar a presença do zumbido por sexo, cor, idade e tempo de trabalho com exposição ao ruído e analisar a relação do zumbido com as freqüências mais acometidas na audiometria e com a presença e grau da perda auditiva, independente do nexo da perda. Materiais e Métodos: Trata-se de um estudo transversal para o qual foram selecionados 362 prontuários de trabalhadores expostos a ruído ocupacional ≥80dB(NA)/8h diárias. Estes trabalhadores haviam sido submetidos a meatoscopia, anamnese clínica e ocupacional, audiometria de via aérea, avaliação de freqüência e intensidade do zumbido e à escala de avaliação da gravidade do zumbido. Conclusão: A prevalência do zumbido foi de 9,9%. Nas análises de regressão conclui-se que trabalhadores com presença de perda auditiva em pelo menos um dos ouvidos têm 2,396 vezes mais chances de ter zumbido quando comparados com os que não tem perda auditiva. Os trabalhadores com faixa etária acima ou igual a 30 anos tem 5,353 vezes mais chances de ter perda auditiva em pelo menos um dos ouvidos quando comparados com os de faixa etária menor que 30 anos. Com relação ao tempo de trabalho em contato com o ruído, a analise estatística revela que trabalhadores com diferença de 1 ano no tempo de trabalho em contato com ruído tem um risco 5,3 % (OR=1,053) maior de apresentar perda auditiva. / Background: Tinnitus is an auditory phantom sensation experienced when no external sound is present. It occurs in both men and women, and is more prevalent between the age of 40 and 70; however, it may also occur in children. Analyses of epidemiologic data indicate that exposure to noise is its most common cause. Object: The aim of this study was to investigate the prevalence and characteristics of tinnitus in noise-exposed workers. Its specific objectives were to evaluate the severity of tinnitus, to compare the presence of tinnitus with the individual’s sex, race, age, and time of exposure to noise in the workplace, and to analyze the relation between tinnitus and the most affected frequencies in audiometric tests as well as the presence and level of hearing loss. Materials and Methods: The present was a cross-sectional study for which 362 files of workers exposed to noise (≥80dB(A)/8h per day) were selected. These workers had undergone otoscopy, clinical and occupational anamnesis, audiometric test of ear conduction, and an investigation of frequency, intensity, and severity of tinnitus. Conclusion: The prevalence of tinnitus found was 9.9%. After logistic regression analyses, it was concluded that workers with hearing loss in at least one ear have 2.396 times more chance of having tinnitus than those who do not have hearing loss. Workers aged 30 or older have 5.353 times more chance of having hearing loss in at least one ear than those younger than 30. As to time of exposure to noise in the workplace, statistical analysis showed that workers with a difference of 1 year in time of exposure to noise have a 5.3% (OR=1.053) higher risk of suffering hearing loss.
390

Associação entre perda auditiva induzida pelo ruído e zumbido

Dias, Adriano [UNESP] January 2004 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:29:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2004Bitstream added on 2014-06-13T20:38:57Z : No. of bitstreams: 1 dias_a_me_botfm.pdf: 225371 bytes, checksum: 5683d13d21fc4540666dc05f73c4a5ca (MD5) / Universidade Estadual Paulista (UNESP) / Verificar a associação entre PAIR e a queixa de zumbido em trabalhadores expostos ao ruído ocupacional. Método: Foram entrevistados e avaliados trabalhadores com histórico de exposição ao ruído ocupacional atendidos me dois ambulatórios de audiologia. Estudou-se a existência de associação entre PAIR e a ocorrência de zumbido por intermédio do ajuste de um modelo de regressão logística tendo como variável dependente o zumbido e como variável independente a PAIR, classificada em 6 graus, controlada pela covariável idade. Resultados: Os dados foram coletados entre os meses de abril e outubro de 2004, na cidade de Bauru, Estado de São Paulo, contemplando 284 trabalhadores. Estimou-se que a prevalência de zumbido aumenta de acordo com a evolução do dano auditivo, controlado para a idade. Discussão: Justifica-se o investimento em programas de conservação auditiva particularmente voltados para o controle da emissão de ruídos na fonte e para a intervenção na evolução das perdas auditivas geradas pela exposição ao ruído objetivando não apenas a manutenção da saúde auditiva, mas também a diminuição dos sintomas associados. / To study the association between noise-induced hearing loss (NIHL) and tinnitus in workers exposed to occupational noise. Method: Workers attending with history of work noise exposure were interviewed and evalueted at two audiology outpatient clinics. The association between NIHL and tinnitus was studied using an adjusted linear regression model with tinnitus as the dependent and NIHL the independent variable and classified into six levels, with age as a controlling co-variable. Results: Data were collected from284 workers between April and October 2003 in Bauru, São Paulo State. Tinnitus was seen to increase with evolution of auditory damage, controlled by age. Discussion: Investment is needed in hearing conservation programs, especially for controlling noise emission at source and for intervention in hearing loss evolution caused bu noise exposure, not just in maintaining auditory health, but also reducing associated symptoms.

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