scholarly journals Avaliação do processamento auditivo em operadores de telemarketing

Revista CEFAC ◽  
2006 ◽  
Vol 8 (4) ◽  
pp. 536-542 ◽  
Author(s):  
Maria Cristina Barros da Silva ◽  
Marta Borges Cunha ◽  
Cláudia Célia Lopes Souza ◽  
Edson Ibrahim Mitre
Keyword(s):  
Gap Detection ◽  
Level Difference ◽  
Masking Level Difference ◽  
E 32

OBJETIVO: avaliar o processamento auditivo (PA) dos operadores de telemarketing quanto à decodificação auditiva. Método: foram avaliados 20 sujeitos com idade entre 18 e 35 anos, de ambos os gêneros , com jornada de trabalho de seis horas diárias, e até cinco anos de tempo de serviço na função, usuários de headset monoauricular e sem exposição prévia a ruído ocupacional. O grupo estudado apresenta limiares auditivos dentro dos padrões de normalidade, timpanometria tipo A e reflexos acústicos presentes. Foi aplicado um questionário com objetivo de colher dados quanto às queixas, hábitos e sensações auditivas e foram realizados os testes de processamento de fala filtrada, Random Gap Detection Test (RGDT) e Masking Level Difference (MLD). RESULTADOS: a análise do estudo foi descritiva, por meio de porcentagem onde observou-se que todos os indivíduos (com idade média entre 20 e 32 anos) apresentaram queixas características das desordens do processamento auditivo. Nos testes aplicados foram observadas 45% de alterações no RGDT e 25% no MLD, havendo uma associação entre os testes de MLD alterados e o perfil de atuação no trabalho. CONCLUSÃO: este estudo sugere que o profissional, operador de telemarketing pode apresentar desordens do processamento auditivo, com provável comprometimento da habilidade de interação binaural e resolução temporal as quais mostraram-se alteradas em considerável parte destes indivíduos.

Masking release for gap detection

1992 ◽  
Vol 336 (1278) ◽  
pp. 331-337 ◽  
Keyword(s):  
Random Noise ◽  
Detection Threshold ◽  
Signal Frequency ◽  
Frequency Noise ◽  
Gap Detection ◽  
Noise Masking ◽  
Level Difference ◽  
Masking Release ◽  
Masking Level Difference ◽  
Release From Masking

In random noise, masking is influenced almost entirely by noise components in a narrow band around the signal frequency. However, when the noise is not random, but has a modulation pattern which is coherent across frequency, noise components relatively remote from the signal frequency can actually produce a release from masking. This masking release has been called comodulation masking release (CMR). The present research investigated whether a similar release from masking occurs in the analysis of a suprathreshold signal. Specifically, the ability to detect the presence of a temporal gap was investigated in conditions which do and do not result in CMR for detection threshold. Similar conditions were investigated for the masking level difference (a binaural masking release phenomenon). The results indicated that suprathreshold masking release for gap detection occurred for both the masking-level difference (MLD) and for CMR. However, masking release for gap detection was generally smaller than that obtained for detection threshold. The largest gap detection masking release effects obtained corresponded to relatively low levels of stimulation, where gap detection was relatively poor.

scholarly journals Speech-evoked Brainstem Auditory Responses and Auditory Processing Skills: A Correlation in Adults with Hearing Loss

2017 ◽  
Vol 22 (01) ◽  
pp. 038-044 ◽  
Author(s):  
Taissane Sanguebuche ◽  
Bruna Peixe ◽  
Rúbia Bruno ◽  
Eliara Biaggio ◽  
Michele Garcia
Keyword(s):  
Hearing Loss ◽  
Auditory Processing ◽  
Auditory Pathway ◽  
Gap Detection ◽  
Behavioral Tests ◽  
Behavioral Skills ◽  
Auditory Responses ◽  
Level Difference ◽  
Masking Level Difference ◽  
Brainstem Response

Introduction The auditory system consists of sensory structures and central connections. The evaluation of the auditory pathway at a central level can be performed through behavioral and electrophysiological tests, because they are complementary to each other and provide important information about comprehension. Objective To correlate the findings of speech brainstem-evoked response audiometry with the behavioral tests Random Gap Detection Test and Masking Level Difference in adults with hearing loss. Methods All patients were submitted to a basic audiological evaluation, to the aforementioned behavioral tests, and to an electrophysiological assessment, by means of click-evoked and speech-evoked brainstem response audiometry. Results There were no statistically significant values among the electrophysiological test and the behavioral tests. However, there was a significant correlation between the V and A waves, as well as the D and F waves, of the speech-evoked brainstem response audiometry peaks. Such correlations are positive, indicating that the increase of a variable implies an increase in another and vice versa. Conclusion It was possible to correlate the findings of the speech-evoked brainstem response audiometry with those of the behavioral tests Random Gap Detection and Masking Level Difference. However, there was no statistically significant correlation between them. This shows that the electrophysiological evaluation does not depend uniquely on the behavioral skills of temporal resolution and selective attention.

scholarly journals Treinamento auditivo nas alterações do processamento auditivo: estudo de caso

Revista CEFAC ◽  
2015 ◽  
Vol 17 (2) ◽  
pp. 604-614 ◽  
Author(s):  
Susan Stroiek ◽  
Lenita da Silva Quevedo ◽  
Carla Hernandez Kieling ◽  
Ana Carolina Lago Battezini
Keyword(s):  
Speech Intelligibility ◽  
Gap Detection ◽  
Level Difference ◽  
Pitch Pattern ◽  
Pattern Sequence ◽  
Masking Level Difference

O objetivo deste estudo é verificar a eficácia de um programa de Treinamento Auditivo comparando o desempenho inicial, nos testes de avaliação do processamento auditivo, com o desempenho após o treinamento auditivo. Para este estudo de caso, desenvolvido na clínica de Fonoaudiologia da Universidade de Passo Fundo, foi selecionado um indivíduo que apresentava alterações de linguagem, queixas compatíveis com alterações de processamento auditivo, avaliação audiológica básica normal e avaliação do processamento auditivo alterada. Para isso, foram utilizados os testes Pediatric Speech Intelligibility, Staggered Spondaic Word, Dicótico de Dígitos, Random Gap Detection Test, Masking Level Difference e Pitch Pattern Sequence. Os resultados obtidos na reavaliação com os testes de Processamento Auditivo após oito sessões de treinamento auditivo apontaram melhoras na decodificação e codificação que se encontravam alteradas, persistindo um leve prejuízo na organização. A evolução do indivíduo de grau severo para leve comprova a eficácia do Treinamento Auditivo.

The effect of diotic and dichotic level-randomization on the binaural masking-level difference

2005 ◽  
Vol 118 (5) ◽  
pp. 3229-3240 ◽  
Author(s):  
G. Bruce Henning ◽  
Virginia M. Richards ◽  
Jennifer J. Lentz
Keyword(s):  
Level Difference ◽  
Masking Level Difference

scholarly journals Masking Level Difference and Electrophysiological Evaluation in Adults with Normal Hearing

2020 ◽  
Vol 24 (04) ◽  
pp. e399-e406
Author(s):  
Joyce Miranda Santiago ◽  
Cyntia Barbosa Laureano Luiz ◽  
Michele Garcia ◽  
Daniela Gil
Keyword(s):  
Auditory Processing ◽  
Auditory Evoked Potentials ◽  
Normal Hearing ◽  
Central Auditory Processing ◽  
Positive Correlation ◽  
Binaural Interaction ◽  
Level Difference ◽  
Significant Difference ◽  
Masking Level Difference ◽  
The Mean

Abstract Introduction The auditory structures of the brainstem are involved in binaural interaction, which contributes to sound location and auditory figure-background perception. Objective To investigate the performance of young adults in the masking level difference (MLD) test, brainstem auditory-evoked potentials (BAEPs) with click stimulus, and frequency-following response (FFR), as well as to verify the correlation between the findings, considering the topographic origin of the components of these procedures. Methods A total of 20 female subjects between 18 and 30 years of age, with normal hearing and no complaints concerning central auditory processing underwent a basic audiological evaluation, as well as the MLD test, BAEP and FFR. Results The mean result on the MLD test was of 10.70 dB. There was a statistically significant difference in the absolute latencies of waves I, III and V in the BAEPs of the ears. A change in the FFR characterized by the absence of the C, E and F waves was noticed. There was a statistically significant difference in the positive correlation of wave V in the BAEPs with the MLD. There was a statistically significant difference in the positive correlation of the mean MLD and the V, A and F components of the FFR. Conclusion The mean MLD was adequate. In the BAEPs, we observed that the click stimulus transmission occurred faster in the right ear. The FFR showed absence of some components. The mean MLD correlated positively with the BAEPs and FFR.

A masking‐level difference in time (MLDT)

1982 ◽  
Vol 71 (S1) ◽  
pp. S37-S37
Author(s):  
Roy D. Patterson ◽  
Robert Milroy
Keyword(s):  
Level Difference ◽  
Masking Level Difference
Sign in / Sign up

Export Citation Format

Share Document