Auditory Steady-State Responses and Word Recognition Scores in Normal-Hearing and Hearing-Impaired Adults

Dimitrijevic, Andrew; John, M. Sasha; Picton, Terence W.

doi:10.1097/01.aud.0000111545.71693.48

Cited by 76 publications

(83 citation statements)

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“…Digital hearing aids offer more features and flexibility to meet the varied needs of hearing-impaired individuals by using non-linear signal processing algorithms (e.g., wide dynamic range compression), directional microphones, and noise reduction algorithms. Studies have shown that aided speech recognition is better than unaided speech recognition (e.g., Dimitrijevic, John, & Picton, 2004;Walden, Grant, & Cord, 2001). Importantly, however, hearing-aid users are still reported to display inferior performance in auditory speech recognition compared to their counterparts with normal hearing (cf.…”

Section: Impact Of Hearing Loss On Speech Recognitionmentioning

confidence: 99%

“…Importantly, however, hearing-aid users are still reported to display inferior performance in auditory speech recognition compared to their counterparts with normal hearing (cf. Dimitrijevic et al, 2004). The adverse effects of age-related hearing loss on auditory speech recognition also greatly depend on the type of speech stimuli (Lash, Rogers, Zoller, & Wingfield, 2013;Whitmer & Akeroyd, 2011).…”

Section: Impact Of Hearing Loss On Speech Recognitionmentioning

confidence: 99%

“…Audiovisual presentation of words increases the accuracy of identification of words in comparison with auditory-only presentation of words (Kaiser, Kirk, Lachs, & Pisoni, 2003 Although hearing aids improve word identification accuracy in comparison with unaided conditions (Dimitrijevic et al 2004;Shanks, Wilson, Larson, & Williams, 2002), the word identification accuracy of hearing aid users is lower than that of their counterparts with normal hearing (Dimitrijevic et al, 2004). For instance, Dimitrijevic et al reported that the accuracy ratio under aided conditions in silence was higher than that under unaided conditions (76% vs. 56%); however, the percentage of words accurately identified for hearing aid users was lower than that for individuals with normal hearing (76% vs. 97%, respectively).…”

Section: Word Identificationmentioning

confidence: 99%

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Time is of the essence in speech perception! : Get it fast, or think about it

Moradi¹

2014

Studies From the Swedish Institute for Disability Research

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Speech recognition occurs when attending to speech stimuli in auditory, visual, or audiovisual modalities under optimum (e.g., in silence) or degraded listening conditions (i.e., in background noise or in individuals with hearing impairment). The present thesis contains details of the first study to show how background noise (steady-state white noise) delayed the identification of different types of speech stimuli (consonants, words, and final words in sentence) in auditory and audiovisual modalities by calculating the isolation points (IPs, the shortest time from the onset of an speech stimulus required for correct identification of that speech stimulus). The cognitive demands of perceiving speech stimuli under each type of listening condition (silence vs. noise) were also tested by measuring the correlations between IPs of each type of speech stimulus (in each type of listening condition) and tests of working memory capacity (i.e., the reading span test, Rönnberg, Arlinger, Lyxell, & Kinnefors, 1989) and attentional capacity (i.e., the Paced Auditory Serial Attention Gronwall, 1977). In addition, the speechreading of words in both silent and noisy (babble background noise and steady-state white noise) conditions was also investigated in above-average speechreaders. The present thesis also compared elderly hearing-aid (EHA) users and elderly normal-hearing (ENH) individuals, in terms of IPs and accuracy in the identification of different types of speech stimuli in silence. Furthermore, the extent to which the identification of auditory speech stimuli was cognitively demanding (for both EHA users and ENH individuals) was investigated by measuring the correlations between IPs and accuracies of different types of speech stimuli and working memory capacity.The results showed that background noise resulted in later IPs (in the auditory and audiovisual modalities) and reduced accuracy (in the auditory, visual, and audiovisual modalities). In visual speech recognition (speechreading), the adverse effect of noise on accuracy was dependent on the type of background noise: babble background noise reduced accuracy but the steady-state white noise did not. In addition, the audiovisual presentation of speech stimuli, relative to auditory presentation, resulted in earlier IPs and more accurate identification of speech stimuli in both silence and noise. In the silent condition, the IPs for perceiving different types of auditory and audiovisual speech stimuli were not correlated with performance on the tests of working memory and attention. In the noise condition, the IPs of consonants and words in the auditory-only condition were significantly correlated with tests for measuring explicit cognitive resources. Furthermore, there was a significant correlation between the results on a test of speech-in-noise performance (the HINT, Hällgren, Larsby, & Arlinger, 2006) and the results on tests of working memory (the reading span test, Rönnberg et al., 1989) and attention (PASAT, Gronwall, 1977). A secondary finding was that ...

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Section: Impact Of Hearing Loss On Speech Recognitionmentioning

confidence: 99%

Section: Impact Of Hearing Loss On Speech Recognitionmentioning

confidence: 99%

Section: Word Identificationmentioning

confidence: 99%

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Time is of the essence in speech perception! : Get it fast, or think about it

Moradi¹

2014

Studies From the Swedish Institute for Disability Research

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“…This effect has been shown on both young and adult listeners with HL (Arlinger, 2003;Hicks & Tharpe, 2002;Tun, McCoy, & Wingfield, 2009). In addition, several studies have shown that hearing aids do not fully restore speech difficulties of individuals with HL (e.g., Dimitrijevic et al, 2004;Moradi, Lidestam, Hällgren, & Rönnberg, 2014;Nakeva von Mentzer, 2014), which made perceiving speech stimuli cognitively demanding (Moradi et al, 2014;Rönnberg et al, 2013).…”

Section: Cognitive Consequences Of Hlmentioning

confidence: 99%

Effects of hearing loss on traffic safety and mobility

Thorslund¹

2014

Studies From the Swedish Institute for Disability Research

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Research into the effect of hearing loss (HL) on traffic safety and mobility is limited and the empirical findings are somewhat inconsistent. HL is one of the most frequent sensory deficits in humans, leading to loss of auditory information, which may affect behavior in traffic situations and might reduce traffic safety and mobility. The prevalence of age-related HL in Europe is roughly 30% for men and 20% for women at the age of 70 years, and 55% for men and 45% for women at the age of 80 years. The prevalence of age-related HL is increasing, and as a consequence the number of road users with HL will also increase.The aim of this PhD thesis was to investigate traffic safety and mobility for individuals with HL. Three studies were conducted: 1. a questionnaire survey aimed to evaluate differences in choice of transportation that might be related to HL, 2. a driving simulator study that looked into compensatory strategies and evaluated the efficiency of a tactile signal to alert the driver, and 3. a field study to evaluate these effects in real traffic and to evaluate a navigation system with a supportive tactile signal.The results of the three studies indicate that there are effects of HL on traffic safety and mobility. The effects are relatively small and often bound to driving complexity; but, systematic and consistent in replicated studies. Differences in transportation habits related to HL include less likelihood of having a driver's license and a higher valuing of written information, with the latter possibly prioritized before time and safety issues. Moreover, respondents with more HL were less concerned about the effects of HL, which suggests that they might be using compensatory strategies.In the experimental studies, differences in driving behavior related to HL were bound to driving conditions and occurred when the complexity of the driving task increased. There was also an effect of HL on visual behavior, indicated in the simulator and confirmed in the field study, suggesting that drivers with HL have more active visual behaviors with more frequent glances in the rear-view mirror and a general scanning of the environment before looking away from the road. A tactile signal in the driver seat was found useful in both experimental studies, both for calling for the driver's attention and facilitating navigation using a GPS navigation device.It was concluded that there are effects of HL on both traffic safety and mobility, consistently pointing toward a generally more cautious driving behavior with the use of both compensatory and coping strategies, which suggests a difference in experienced safety. Compensatory strategies associated with HL include driving at lower speeds and using a more comprehensive visual search behavior. Coping strategies associated with HL include engaging less in distracting activities. Evaluation of the tactile signal suggests that it may make driver assistance systems more accessible, not only to drivers with HL, but to all drivers. At the same time, the systems might bec...

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“…The ASSR is an important procedure of auditory evaluation, because it presents more facilities and efficiency to obtain responses, objectivity in the register analysis, selectivity in the responses frequency, and higher detection of hearing responses than other objective methods such as BAEP (13) . Such findings justify the importance of the ASSR, because young children may not cooperate during the behavioral auditory evaluation and this procedure is useful to determine the auditory threshold, once there is close relationship between the electro physiological thresholds obtained through ASSR and behavioral thresholds (14) .…”

Section: Introductionmentioning

confidence: 99%

Associação entre fenótipo, desempenho com próteses auditivas e genótipo da deficiência auditiva infantil em crianças com e sem alteração genética

Biaggio

Azevedo

Iório

et al. 2012

J. Soc. Bras. Fonoaudiol.

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OBJETIVO: Estabelecer a frequência de mutações genéticas relacionadas à deficiência auditiva neurossensorial (DANS); verificar se há associação entre grau da DANS e presença de alteração genética e verificar se os Níveis Mínimos de Resposta (NMR) com próteses auditivas variam em função da alteração genética. MÉTODOS: Foram avaliadas 30 crianças, com idades entre 8 e 111 meses, usuárias de próteses auditivas. Os procedimentos de avaliação utilizados foram: audiometria tonal e resposta auditiva de estado estável (RAEE) em campo livre, com e sem as próteses auditivas e estudo genético da DANS. RESULTADOS: Foram diagnosticadas três mutações genéticas: 35delG, A1555G e A827G, sendo que as crianças com tais mutações apresentaram maior grau de DANS. Não houve diferença entre os padrões genéticos em relação ao grau de DANS, com exceção dos pacientes com mutação mitocondrial A827G, pois todos com essa mutação eram portadores de DANS de grau profundo. A diferença entre os NMR obtidos sem e com o uso da amplificação, considerando a presença de mutação e grau de DANS, foi maior nas crianças portadoras de DANS de grau moderado sem alteração genética, tanto na avaliação comportamental quanto na eletrofisiológica. CONCLUSÃO: As mutações genéticas foram encontradas em 36,7% da amostra, o que justifica a importância do rastreamento genético no processo de habilitação auditiva. Crianças com mutações genéticas apresentam o maior grau de DANS. Os diferentes padrões de mutações não determinam diretamente o grau da DANS. Os melhores limiares com o uso da amplificação foram encontrados nas crianças com DANS moderada, sem alteração genética.

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Auditory Steady-State Responses and Word Recognition Scores in Normal-Hearing and Hearing-Impaired Adults

Abstract: IAFM responses are significantly correlated with WRS and may provide an objective tool for examining the brain's ability to process the auditory information needed to perceive speech.

Cited by 76 publications

References 76 publications

Time is of the essence in speech perception! : Get it fast, or think about it

Time is of the essence in speech perception! : Get it fast, or think about it

Effects of hearing loss on traffic safety and mobility

Associação entre fenótipo, desempenho com próteses auditivas e genótipo da deficiência auditiva infantil em crianças com e sem alteração genética

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