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1.
Acta Otorrinolaringol Esp ; 59(6): 269-76, 2008.
Artigo em Espanhol | MEDLINE | ID: mdl-18588786

RESUMO

INTRODUCTION: Binaural integration is the ability to process different messages when presented simultaneously in both ears. Any deficit in this mechanism implies poor auditory discrimination of background noise and difficulties in processing competing auditory signals. METHOD: In the present study, pairs of digits were presented dichotically to both ears in adult subjects with normal hearing and bilaterally symmetrical sensorineural cochlear hearing loss. RESULTS: Hearing sensitivity, the difficulty in hearing the pairs and the effect of aging determine the capacity for correct recognition. In general, subjects with normal hearing score higher than those with hearing loss. Hypoacusic subjects show a deficit in the recognition of digits presented to the left ear and a greater advantage in the right ear. CONCLUSIONS: The study of binaural integration mechanisms may be useful in the audiological evaluation of patients who reject bilateral amplification and in normal- hearing subjects presenting difficulties to understand speech in noisy settings.


Assuntos
Percepção Auditiva/fisiologia , Perda Auditiva Neurossensorial/fisiopatologia , Adulto , Idoso , Feminino , Lateralidade Funcional , Humanos , Masculino , Pessoa de Meia-Idade
2.
Acta otorrinolaringol. esp ; 59(6): 269-276, jul. 2008. ilus, tab
Artigo em Es | IBECS | ID: ibc-66285

RESUMO

Introducción: La integración biauricular es la habilidad para procesar de forma simultánea por ambos oídos señales acústicas diferentes. El déficit en este mecanismo conlleva una pobre discriminación auditiva en presencia de ruido de fondo y dificultades en el procesamiento de señales acústicas competitivas. Material y método: En esta investigación se han presentado pares de dígitos de forma dicótica con distintos niveles de dificultad. Los sujetos participantes en este estudio eran adultos con audición normal y con pérdidas auditivas neurosensoriales bilaterales simétricas de origen coclear. Resultados: El estado auditivo, la dificultad de los ítems y el efecto del envejecimiento determinaron las capacidades de acierto. En general los sujetos normoyentes obtienen mejores puntuaciones que los sujetos con pérdida auditiva. Los sujetos hipoacúsicos muestran un déficit en el reconocimiento de los dígitos presentados por el oído izquierdo y una mayor ventaja del oído derecho. Conclusiones: El estudio de los mecanismos de integración biauricular puede tener interés en la evaluación audiológica de los pacientes que rechazan la amplificación biauricular y en sujetos que experimentan dificultades en la comprensión del habla en entornos ruidosos con una sensibilidad auditiva normal


Introduction: Binaural integration is the ability to process different messages when presented simultaneously in both ears. Any deficit in this mechanism implies poor auditory discrimination of background noise and difficulties in processing competing auditory signals. Method: In the present study, pairs of digits were presented dichotically to both ears in adult subjects with normal hearing and bilaterally symmetrical sensorineural cochlear hearing loss. Results: Hearing sensitivity, the difficulty in hearing the pairs and the effect of aging determine the capacity for correct recognition. In general, subjects with normal hearing score higher than those with hearing loss. Hypoacusic subjects show a deficit in the recognition of digits presented to the left ear and a greater advantage in the right ear. Conclusions: The study of binaural integration mechanisms may be useful in the audiological evaluation of patients who reject bilateral amplification and in normal- hearing subjects presenting difficulties to understand speech in noisy settings


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Adulto , Pessoa de Meia-Idade , Perda Auditiva Neurossensorial/patologia , Testes com Listas de Dissílabos/métodos , Otoscopia/métodos , Análise de Variância , Testes de Impedância Acústica/métodos , Lateralidade Funcional/fisiologia , Testes de Impedância Acústica/instrumentação , Audiometria
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