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1.
Rev Saude Publica ; 57: 15, 2023.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-37075398

RESUMEN

OBJECTIVE: To estimate the association between negative self-perception of hearing and depression in older adults in Southern Brazil. METHODS: This is a cross-sectional study conducted with data from the third wave of the EpiFloripa Idoso 2017/19 study, a population-based cohort of older adults (60+). A total of 1,335 older adults participated in this wave. The dependent variable was self-reported depression, and the main exposure was self-perception of hearing (negative; positive). For both the crude (bivariate) and adjusted analysis, the odds ratio (OR) was used as a measure of association and estimated by means of binary logistic regression analysis. The exposure variable was adjusted by sociodemographic and health covariates. A p value < 0.05 was adopted as statistically significant. RESULTS: The prevalence of negative self-perception of hearing and depression was 26.0% and 21.8%, respectively. In the adjusted analysis, the older adults with negative self-perception of hearing were 1.96 times more likely to report depression when compared to the ones with positive self-perception of hearing (p = 0.002). CONCLUSION: The association between negative self-perception of hearing and depression reflects the importance of reviewing health care actions for older adults, incorporating hearing-related issues, to ensure comprehensive care for this growing segment of the population.


Asunto(s)
Pérdida Auditiva , Humanos , Anciano , Pérdida Auditiva/epidemiología , Estudios Transversales , Depresión/epidemiología , Brasil/epidemiología , Audición , Autoimagen
2.
Artículo en Inglés, Portugués | LILACS | ID: biblio-1432156

RESUMEN

ABSTRACT OBJECTIVE To estimate the association between negative self-perception of hearing and depression in older adults in Southern Brazil. METHODS This is a cross-sectional study conducted with data from the third wave of the EpiFloripa Idoso 2017/19 study, a population-based cohort of older adults (60+). A total of 1,335 older adults participated in this wave. The dependent variable was self-reported depression, and the main exposure was self-perception of hearing (negative; positive). For both the crude (bivariate) and adjusted analysis, the odds ratio (OR) was used as a measure of association and estimated by means of binary logistic regression analysis. The exposure variable was adjusted by sociodemographic and health covariates. A p value < 0.05 was adopted as statistically significant. RESULTS The prevalence of negative self-perception of hearing and depression was 26.0% and 21.8%, respectively. In the adjusted analysis, the older adults with negative self-perception of hearing were 1.96 times more likely to report depression when compared to the ones with positive self-perception of hearing (p = 0.002). CONCLUSION The association between negative self-perception of hearing and depression reflects the importance of reviewing health care actions for older adults, incorporating hearing-related issues, to ensure comprehensive care for this growing segment of the population.


RESUMO OBJETIVO Estimar a associação entre a autopercepção negativa da audição e a depressão em idosos do sul do Brasil. MÉTODOS Trata-se de um estudo transversal realizado com dados da terceira onda do estudo EpiFloripa Idoso 2017/19, de coorte de base populacional de idosos (60+). Participaram desta onda 1.335 idosos. A variável dependente foi a depressão autorreferida e a exposição principal foi a autopercepção auditiva (negativa; positiva). Tanto para a análise bruta (bivariada) quanto para a ajustada, a odds ratio (OR) foi utilizada como medida de associação e estimada por meio da análise de Regressão Logística Binária. A variável de exposição foi ajustada pelas covariáveis sociodemográficas e de saúde. Adotou-se o valor de p < 0,05 como estatisticamente significativo. RESULTADOS A prevalência da autopercepção negativa da audição e depressão foi de 26,0% e 21,8%, respectivamente. Na análise ajustada, idosos com autopercepção negativa da audição apresentaram 1,96 vezes mais chance de referirem depressão quando comparados aos idosos com autopercepção positiva da audição (p = 0,002). CONCLUSÃO A associação encontrada entre a autopercepção negativa auditiva e a depressão reflete a importância de rever as ações de atenção à saúde do idoso, incorporando questões relacionadas à audição para a garantia da atenção integral a esta parcela crescente da população.


Asunto(s)
Humanos , Anciano , Anciano de 80 o más Años , Presbiacusia , Autoimagen , Anciano , Encuestas Epidemiológicas , Depresión , Autoevaluación Diagnóstica , Pérdida Auditiva
3.
Codas ; 28(6): 717-723, 2016.
Artículo en Portugués, Inglés | MEDLINE | ID: mdl-27982254

RESUMEN

INTRODUCTION: Few studies have performed Brainstem (BAEP) and P300 Auditory Evoked Potentials simultaneously to assess central auditory pathways in normal hearing individuals with Down syndrome (DS), mainly because of the difficulty in applying these procedures to this population. Previous studies have suggested that individuals with DS might present different patterns of response compared with those of individuals with typical development; nevertheless, the identification of these potentials would be crucial for the establishment of an accurate audiological diagnosis. PURPOSE: To characterize BAEP and P300 in normal-hearing individuals with DS. METHODS: BAEP and P300 were analyzed in 17 individuals with DS and in 21 individuals with typical development aged 7 to 15 years. The results were quantitatively and qualitatively analyzed using descriptive measures and hypothesis tests. RESULTS: In the quantitative analysis, latency values were lower in the BAEP for the DS group, with statistically significant difference for wave V and interpeaks III-V and I-V; there were no significant differences in the P300 latency values. In the qualitative analysis, there were a larger number of individuals with early values for BAEP latencies and late latencies for P300 in the DS group; both comparisons showed statistically significant differences. CONCLUSION: Children and adolescents with DS can present early responses to the components of BAEP, suggesting that their auditory pathway requires less time for the neural transmission of acoustic stimuli to the brainstem. Concerning P300, individuals with DS may present increased latencies, suggesting impairment in the central auditory pathway for the cortical processing of auditory information.


Asunto(s)
Síndrome de Down/fisiopatología , Potenciales Relacionados con Evento P300/fisiología , Estimulación Acústica , Adolescente , Niño , Potenciales Evocados Auditivos del Tronco Encefálico/fisiología , Femenino , Pruebas Auditivas , Humanos , Masculino
4.
CoDAS ; 28(6): 717-723, nov.-dez. 2016. tab
Artículo en Portugués | LILACS | ID: biblio-828578

RESUMEN

RESUMO Introdução Poucos estudos realizaram, concomitantemente, o potencial evocado auditivo de tronco encefálico (PEATE) e o P300 na Síndrome de Down (SD), em indivíduos audiologicamente normais, para a avaliação da via auditiva central, principalmente pela dificuldade de realizar estes procedimentos nesta população. Estudos anteriores sugeriram que indivíduos com SD podem apresentar padrões de respostas diferentes das encontradas em indivíduos com desenvolvimento típico, sendo que a identificação destes seria fundamental para o estabelecimento de um diagnóstico audiológico preciso. Objetivo Caracterizar o PEATE e o P300 em indivíduos com SD audiologicamente normais. Método Foram analisados o PEATE e o P300 de 17 indivíduos com SD e 21 com desenvolvimento típico de sete a 15 anos. A análise foi quantitativa e qualitativa, utilizando medidas descritivas e os testes de hipótese. Resultados Os valores de latência foram menores no PEATE para o grupo SD, com diferença estatisticamente significante para a onda V, interpicos III-V e I-V; não foram encontradas diferenças significantes nos valores de latência do P300. Observou-se maior número de indivíduos com valores precoces para as latências do PEATE e com latências atrasadas para o P300 no grupo SD; ambas as comparações mostraram diferenças significantes. Conclusão Crianças e adolescentes com SD podem apresentar respostas precoces para os componentes do PEATE, sugerindo que a via auditiva destes necessita de menor tempo para a transmissão neural do estímulo acústico até o tronco encefálico. Quanto ao P300, indivíduos com SD podem apresentar latências aumentadas, sugerindo comprometimento na via auditiva central quanto ao processamento cortical da informação auditiva.


ABSTRACT Introduction Few studies have performed Brainstem (BAEP) and P300 Auditory Evoked Potentials simultaneously to assess central auditory pathways in normal hearing individuals with Down syndrome (DS), mainly because of the difficulty in applying these procedures to this population. Previous studies have suggested that individuals with DS might present different patterns of response compared with those of individuals with typical development; nevertheless, the identification of these potentials would be crucial for the establishment of an accurate audiological diagnosis. Purpose To characterize BAEP and P300 in normal-hearing individuals with DS. Methods BAEP and P300 were analyzed in 17 individuals with DS and in 21 individuals with typical development aged 7 to 15 years. The results were quantitatively and qualitatively analyzed using descriptive measures and hypothesis tests. Results In the quantitative analysis, latency values were lower in the BAEP for the DS group, with statistically significant difference for wave V and interpeaks III-V and I-V; there were no significant differences in the P300 latency values. In the qualitative analysis, there were a larger number of individuals with early values for BAEP latencies and late latencies for P300 in the DS group; both comparisons showed statistically significant differences. Conclusion Children and adolescents with DS can present early responses to the components of BAEP, suggesting that their auditory pathway requires less time for the neural transmission of acoustic stimuli to the brainstem. Concerning P300, individuals with DS may present increased latencies, suggesting impairment in the central auditory pathway for the cortical processing of auditory information.


Asunto(s)
Humanos , Masculino , Femenino , Niño , Adolescente , Síndrome de Down/fisiopatología , Potenciales Relacionados con Evento P300/fisiología , Estimulación Acústica , Potenciales Evocados Auditivos del Tronco Encefálico/fisiología , Pruebas Auditivas
5.
Codas ; 28(1): 27-33, 2016.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-27074186

RESUMEN

UNLABELLED: Tinnitus may be defined as the conscious perception of sound or noise, without the presence of external acoustic stimulation. Given the damage caused by tinnitus and the lack of effective treatment, alternatives are necessary to rehabilitate subjects with tinnitus. There is an assumption that auditory training (AT) could lead to a plastic reorganization of this system, thus promoting an improvement of the symptom. OBJECTIVE: To verify the effect of an AT program in subjects with tinnitus in the perception of this symptom. METHODS: Twelve subjects with tinnitus were included in the study and divided into two groups: Study Group (SG) and Control Group (CG). All of them underwent audiometric and electrophysiological assessments; acuphenometry; Tinnitus Handicap Inventory and auditory processing assessment (GIN - Gaps in Noise, Frequency Pattern Test and Speech-in-Noise). Afterward, trainings began and the SG was submitted to the formal AT, and the CG to the visual training. RESULTS: In the characterization of the groups, no statistically significant difference was found for the variables such as age, pitch, and loudness of tinnitus, or for hearing thresholds in conventional audiometry and high frequencies. Comparisons were performed between the groups, before and after the trainings, regarding electrophysiological, behavioral, and Tinnitus Handicap Inventory tests, and no statistically significant differences were found between them for any of the evaluations. CONCLUSION: Findings showed no statistically significant differences between groups in the comparison between the moments pre- and post-trainings (auditory or visual), nor for the electrophysiological findings or behavioral assessment of the auditory processing and for the Tinnitus Handicap Inventory, although some specific differences in the individual analysis have occurred.


Asunto(s)
Estimulación Acústica/métodos , Percepción Auditiva/fisiología , Potenciales Evocados Auditivos/fisiología , Percepción del Habla/fisiología , Acúfeno/rehabilitación , Adulto , Audiometría de Tonos Puros , Umbral Auditivo , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Enmascaramiento Perceptual , Encuestas y Cuestionarios , Acúfeno/diagnóstico
6.
CoDAS ; 28(1): 27-33, jan.-fev. 2016. tab
Artículo en Portugués | LILACS | ID: lil-779112

RESUMEN

RESUMO O zumbido pode ser definido como a percepção consciente de um som, sem a presença de estimulação acústica externa. Considerando o prejuízo causado pelo zumbido e a falta de tratamentos definitivos, fica evidente a necessidade de alternativas para reabilitação de pessoas com zumbido. A hipótese é que o treinamento auditivo pode causar uma reorganização plástica desse sistema, promovendo uma melhora do sintoma. Objetivo: Verificar o efeito de um programa de treinamento auditivo em portadores de zumbido na percepção desse sintoma. Métodos: Participaram 12 indivíduos portadores de zumbido, divididos em dois grupos: Grupo Estudo (GE) e Grupo Controle (GC). Todos os indivíduos realizaram: audiometria; avaliação eletrofisiológica; acufenometria; aplicação do Tinnitus Handicap Inventory (THI) e avaliação do processamento auditivo (GIN - Gaps In Noise , Teste de Padrão de Frequência e Fala com Ruído). Após a avaliação, foram iniciados os treinamentos e o GE foi submetido ao treinamento auditivo formal enquanto o GC ao treinamento visual. Resultados: Na caracterização dos grupos não foram observadas diferenças estatisticamente significantes para as variáveis: idade, pitch e loudness do zumbido, nem para os limiares auditivos na audiometria convencional e altas frequências. Na comparação entre os grupos, pré e pós-treinamento, dos testes eletrofisiológicos, comportamentais e THI não houve diferenças estatisticamente significantes entre eles para nenhuma das avaliações realizadas. Conclusão: Achados não mostraram diferenças estatisticamente significantes entre os grupos na comparação entre pré e pós-treinamento (auditivo ou visual), tanto para os achados eletrofisiológicos quanto para a avaliação comportamental do processamento auditivo e para o THI, embora diferenças pontuais na análise individual tenham ocorrido.


ABSTRACT Tinnitus may be defined as the conscious perception of sound or noise, without the presence of external acoustic stimulation. Given the damage caused by tinnitus and the lack of effective treatment, alternatives are necessary to rehabilitate subjects with tinnitus. There is an assumption that auditory training (AT) could lead to a plastic reorganization of this system, thus promoting an improvement of the symptom. Objective: To verify the effect of an AT program in subjects with tinnitus in the perception of this symptom. Methods: Twelve subjects with tinnitus were included in the study and divided into two groups: Study Group (SG) and Control Group (CG). All of them underwent audiometric and electrophysiological assessments; acuphenometry; Tinnitus Handicap Inventory and auditory processing assessment (GIN - Gaps in Noise, Frequency Pattern Test and Speech-in-Noise). Afterward, trainings began and the SG was submitted to the formal AT, and the CG to the visual training. Results: In the characterization of the groups, no statistically significant difference was found for the variables such as age, pitch, and loudness of tinnitus, or for hearing thresholds in conventional audiometry and high frequencies. Comparisons were performed between the groups, before and after the trainings, regarding electrophysiological, behavioral, and Tinnitus Handicap Inventory tests, and no statistically significant differences were found between them for any of the evaluations. Conclusion: Findings showed no statistically significant differences between groups in the comparison between the moments pre- and post-trainings (auditory or visual), nor for the electrophysiological findings or behavioral assessment of the auditory processing and for the Tinnitus Handicap Inventory, although some specific differences in the individual analysis have occurred.


Asunto(s)
Adulto , Femenino , Humanos , Masculino , Estimulación Acústica/métodos , Percepción Auditiva/fisiología , Potenciales Evocados Auditivos/fisiología , Percepción del Habla/fisiología , Acúfeno/rehabilitación , Audiometría de Tonos Puros , Umbral Auditivo , Estudios de Casos y Controles , Enmascaramiento Perceptual , Encuestas y Cuestionarios , Acúfeno/diagnóstico
7.
Codas ; 26(2): 148-54, 2014.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-24918508

RESUMEN

PURPOSE: To analyze the structure of the Centers for Supporting the Family Health (NASF), in 2010, identify the satisfaction degree of speech language pathologists who work in this area and compare the model proposed by the Brazilian Ministry of Health with practice. METHODS: Prospective and descriptive study, with 40 speech language pathologists inserted in NASF type one, from all Brazilian regions, in 2010. It was used a questionnaire with nine questions related to different topics (work infrastructure, NASF team, actions developed by these professionals and satisfaction about the work), sent by electronic mail to the speech language pathologists. Descriptive statistics, χ2, ANOVA and Pearson coefficient of variation were used to analyze variables. Significance level of 5% was adopted. RESULTS: The speech language pathologists reported that, in their working places (NASF), there was an average of 12.2 Health Family Teams, with 8.9 professionals and 1.6 speech language pathologists. Most of them work 40 hours per week. Routine activities cited by speech language pathologists were: promotion and health prevention actions, matricial, therapies, support to health community workers, referrals, home visits, intersectoral actions and administrative tasks. There was variability in the satisfaction score: the majority of interviewees indicated the degree "Somewhat satisfied" for work infrastructure and referrals, as well as reported "Very satisfied" degree for home visits and support for health community workers. Comparing the model proposed by the Ministry of Health with the speech language pathologists' practices, there was no significant difference. The results show that 40% of speech language pathologists consider that the NASF actions are below the proposed model. CONCLUSION: The NASF structure varied in terms of the number of Family Health Teams, professionals involved and actions performed. There was also significant variability in the satisfaction degree among the subjects studied.


Asunto(s)
Salud de la Familia , Satisfacción en el Trabajo , Patología del Habla y Lenguaje , Actitud del Personal de Salud , Brasil , Humanos , Programas Nacionales de Salud , Estudios Prospectivos , Salud Pública , Encuestas y Cuestionarios
8.
CoDAS ; 26(2): 148-154, Mar-Apr/2014. tab, graf
Artículo en Inglés | LILACS | ID: lil-711131

RESUMEN

PURPOSE: To analyze the structure of the Centers for Supporting the Family Health (NASF), in 2010, identify the satisfaction degree of speech language pathologists who work in this area and compare the model proposed by the Brazilian Ministry of Health with practice. METHODS: Prospective and descriptive study, with 40 speech language pathologists inserted in NASF type one, from all Brazilian regions, in 2010. It was used a questionnaire with nine questions related to different topics (work infrastructure, NASF team, actions developed by these professionals and satisfaction about the work), sent by electronic mail to the speech language pathologists. Descriptive statistics, χ2, ANOVA and Pearson coefficient of variation were used to analyze variables. Significance level of 5% was adopted. RESULTS: The speech language pathologists reported that, in their working places (NASF), there was an average of 12.2 Health Family Teams, with 8.9 professionals and 1.6 speech language pathologists. Most of them work 40 hours per week. Routine activities cited by speech language pathologists were: promotion and health prevention actions, matricial, therapies, support to health community workers, referrals, home visits, intersectoral actions and administrative tasks. There was variability in the satisfaction score: the majority of interviewees indicated the degree "Somewhat satisfied" for work infrastructure and referrals, as well as reported "Very satisfied" degree for home visits and support for health community workers. Comparing the model proposed by the Ministry of Health with the speech language pathologists' practices, there was no significant difference. The results show that 40% of speech language pathologists consider that the NASF actions are below the proposed model. CONCLUSION: The NASF structure varied in terms of the number of Family Health Teams, professionals involved and actions performed. There was also significant ...


OBJETIVO: Analisar a estrutura dos Núcleos de Apoio à Saúde da Família (NASF), vigentes em 2010, identificar o grau de satisfação dos fonoaudiólogos que atuam nessa área e comparar o modelo proposto pela portaria 154 do Ministério da Saúde com a prática fonoaudiológica. MÉTODOS: Estudo prospectivo e descritivo, com 40 fonoaudiólogos inseridos em NASF tipo um, de todo território nacional, em 2010. Utilizou-se um questionário com nove perguntas que abordavam diferentes temas (infraestrutura de trabalho, equipe do NASF, ações desenvolvidas pelos profissionais do NASF e satisfação com o trabalho desenvolvido), enviado por correio eletrônico para os fonoaudiólogos. Para a análise das variáveis estudadas, foram utilizadas medidas descritivas, os testes do χ2, ANOVA e o coeficiente de variação de Pearson. Foi adotado o nível de significância de 5%. RESULTADOS: Os fonoaudiólogos relataram que nos NASFs em que atuavam havia em média 12,2 Equipes de Saúde da Família, 8,9 profissionais e 1,6 fonoaudiólogos por NASF, sendo a maioria com carga de 40 horas semanais. As atividades de rotina citadas pelos fonoaudiólogos foram: ações de promoção e prevenção de saúde, matriciamento, terapias, suporte aos agentes comunitários, encaminhamentos, visitas domiciliares, ações intersetoriais e atividades administrativas. Houve variabilidade na pontuação do grau de satisfação: a maioria indicou o grau "Pouco satisfeito" para infraestrutura de trabalho e encaminhamentos efetivados e "Muito satisfeito" para visitas domiciliares e suporte aos agentes comunitários de saúde. Comparando o modelo proposto com a prática dos fonoaudiólogos, não houve diferença significativa, mas 40% deles consideraram ...


Asunto(s)
Humanos , Salud de la Familia , Satisfacción en el Trabajo , Patología del Habla y Lenguaje , Actitud del Personal de Salud , Brasil , Programas Nacionales de Salud , Estudios Prospectivos , Salud Pública , Encuestas y Cuestionarios
9.
Acta Neurobiol Exp (Wars) ; 72(3): 296-308, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23093016

RESUMEN

This study verifies the effects of contralateral noise on otoacoustic emissions and auditory evoked potentials. Short, middle and late auditory evoked potentials as well as otoacoustic emissions with and without white noise were assessed. Twenty-five subjects, normal-hearing, both genders, aged 18 to 30 years, were tested . In general, latencies of the various auditory potentials were increased at noise conditions, whereas amplitudes were diminished at noise conditions for short, middle and late latency responses combined in the same subject. The amplitude of otoacoustic emission decreased significantly in the condition with contralateral noise in comparison to the condition without noise. Our results indicate that most subjects presented different responses between conditions (with and without noise) in all tests, thereby suggesting that the efferent system was acting at both caudal and rostral portions of the auditory system.


Asunto(s)
Potenciales Relacionados con Evento P300/fisiología , Potenciales Evocados Auditivos/fisiología , Inhibición Neural/fisiología , Emisiones Otoacústicas Espontáneas/fisiología , Estimulación Acústica , Adolescente , Adulto , Electroencefalografía , Femenino , Humanos , Masculino , Ruido , Tiempo de Reacción/fisiología , Adulto Joven
10.
Rev. Soc. Bras. Fonoaudiol ; 16(4): 441-444, dez. 2011. tab
Artículo en Portugués | LILACS | ID: lil-608571

RESUMEN

OBJETIVO: Investigar o desempenho de escolares de 7 a 12 anos de idade, sem queixas auditivas, no teste Gaps-in-Noise (GIN). MÉTODOS: Todas as crianças foram submetidas à otoscopia, audiometria tonal, logoaudiometria, medidas de imitância acústica e teste dicótico de dígitos. Somente realizaram o teste GIN os escolares com resultados dentro do esperado nos referidos testes (37 crianças, sendo 20 de escola particular e 17 de escola pública). Uma vez que não houve diferença entre o desempenho das crianças de escola pública e escola particular, o grupo foi tratado como único. RESULTADOS: Foram encontrados os seguintes valores médios no GIN por faixa etária: 7 anos (5,65 ms); 8 anos (5,12 ms); 9 anos (4,87 ms); 10 anos (5,1 ms) e acima de 11 anos (4,75 ms). CONCLUSÃO: O limiar médio de detecção de gap na orelha direita foi de 5 ms e na orelha esquerda foi de 5,19 ms. Não houve diferença entre as diversas faixas-etárias, orelhas e gêneros, no que se refere aos limiares de detecção de gap avaliados pelo GIN.


PURPOSE: To investigate the performance of children with no hearing complaints with ages between 7 and 12 years on the Gaps-in-Noise (GIN) test. METHODS: All children were submitted to otoscopy, pure tone audiometry, speech audiometry, acoustic immittance measures, and dichotic digits test. Only children who passed the previous audiological assessment carried out the GIN test (37 children - 20 who were enrolled in private schools, and 17 from public schools). As there was no difference between the performance of children from public and private schools, both groups were combined for the analysis. RESULTS: The following average values were found for performance on the GIN test: 7-year-olds (5.65 ms), 8-year-olds (5.12 ms), 9-year-olds (4.87 ms), 10-year-olds (5.1 ms), and children over 11 years old (4.75 ms). CONCLUSION: The mean gap detection threshold in the right ear was 5 ms and in the left ear, 5.19 ms. No age, gender, or ear effects were found for gap detection thresholds assessed by the GIN test.


Asunto(s)
Humanos , Niño , Estimulación Acústica , Percepción Auditiva , Audición , Pruebas Auditivas
11.
Clinics (Sao Paulo) ; 66(2): 293-8, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21484049

RESUMEN

OBJECTIVE: To determine whether neurophysiological auditory brainstem responses to clicks and repeated speech stimuli differ between typically developing children and children with phonological disorders. INTRODUCTION: Phonological disorders are language impairments resulting from inadequate use of adult phonological language rules and are among the most common speech and language disorders in children (prevalence: 8 - 9%). Our hypothesis is that children with phonological disorders have basic differences in the way that their brains encode acoustic signals at brainstem level when compared to normal counterparts. METHODS: We recorded click and speech evoked auditory brainstem responses in 18 typically developing children (control group) and in 18 children who were clinically diagnosed with phonological disorders (research group). The age range of the children was from 7-11 years. RESULTS: The research group exhibited significantly longer latency responses to click stimuli (waves I, III and V) and speech stimuli (waves V and A) when compared to the control group. DISCUSSION: These results suggest that the abnormal encoding of speech sounds may be a biological marker of phonological disorders. However, these results cannot define the biological origins of phonological problems. We also observed that speech-evoked auditory brainstem responses had a higher specificity/sensitivity for identifying phonological disorders than click-evoked auditory brainstem responses. CONCLUSIONS: Early stages of the auditory pathway processing of an acoustic stimulus are not similar in typically developing children and those with phonological disorders. These findings suggest that there are brainstem auditory pathway abnormalities in children with phonological disorders.


Asunto(s)
Estimulación Acústica/métodos , Vías Auditivas/fisiología , Potenciales Evocados Auditivos del Tronco Encefálico/fisiología , Trastornos del Habla/fisiopatología , Análisis de Varianza , Estudios de Casos y Controles , Niño , Electroencefalografía , Femenino , Humanos , Masculino , Estudios Prospectivos
12.
Clinics ; 66(2): 293-298, 2011. tab
Artículo en Inglés | LILACS | ID: lil-581517

RESUMEN

OBJECTIVE: To determine whether neurophysiological auditory brainstem responses to clicks and repeated speech stimuli differ between typically developing children and children with phonological disorders. INTRODUCTION: Phonological disorders are language impairments resulting from inadequate use of adult phonological language rules and are among the most common speech and language disorders in children (prevalence: 8 - 9 percent). Our hypothesis is that children with phonological disorders have basic differences in the way that their brains encode acoustic signals at brainstem level when compared to normal counterparts. METHODS: We recorded click and speech evoked auditory brainstem responses in 18 typically developing children (control group) and in 18 children who were clinically diagnosed with phonological disorders (research group). The age range of the children was from 7-11 years. RESULTS: The research group exhibited significantly longer latency responses to click stimuli (waves I, III and V) and speech stimuli (waves V and A) when compared to the control group. DISCUSSION: These results suggest that the abnormal encoding of speech sounds may be a biological marker of phonological disorders. However, these results cannot define the biological origins of phonological problems. We also observed that speech-evoked auditory brainstem responses had a higher specificity/sensitivity for identifying phonological disorders than click-evoked auditory brainstem responses. CONCLUSIONS: Early stages of the auditory pathway processing of an acoustic stimulus are not similar in typically developing children and those with phonological disorders. These findings suggest that there are brainstem auditory pathway abnormalities in children with phonological disorders.


Asunto(s)
Niño , Femenino , Humanos , Masculino , Estimulación Acústica/métodos , Vías Auditivas/fisiología , Potenciales Evocados Auditivos del Tronco Encefálico/fisiología , Trastornos del Habla/fisiopatología , Análisis de Varianza , Estudios de Casos y Controles , Electroencefalografía , Estudios Prospectivos
13.
Rev. CEFAC ; 10(3): 369-377, 2008. tab
Artículo en Portugués | LILACS | ID: lil-495396

RESUMEN

TEMA: processamento auditivo temporal e resolução temporal. OBJETIVO: realizar revisão teórica sobre processamento auditivo e resolução temporal, bem como sobre os diferentes parâmetros de marcadores utilizados em testes de detecção de gap e como eles podem interferir na determinação dos limiares. CONCLUSÃO: o processamento auditivo e a resolução temporal são fundamentais para o desenvolvimento da linguagem. Em virtude dos diferentes parâmetros que podem ser utilizados no teste em questão, os limiares de detecção de gap podem variar consideravelmente.


BACKGROUND: temporal auditory processing and temporal resolution. PURPOSE: promote a theoretical approach on auditory processing, temporal resolution, and different parameters of markers used at various gap detection tests and how they can interfere in threshold determination. CONCLUSION: auditory processing and temporal resolution are key-factors for language development. The diverse parameters that can be used in the study of gap detection thresholds can result in quite discrepant thresholds.


Asunto(s)
Niño , Estimulación Acústica , Percepción Auditiva , Niño , Psicoacústica
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