Cortical Auditory Evoked Potential: evaluation of speech detection in adult hearing aid users

Durante, Alessandra Spada; Wieselberg, Margarita Bernal; Carvalho, Sheila; Costa, Nayara; Pucci, Beatriz; Gudayol, Nicolly; Almeida, Kátia de

doi:10.1590/2317-1782/20142013085

Cited by 15 publications

(14 citation statements)

References 23 publications

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“…Recent research suggests that CAEPs may further serve as objective tools to aid in the assessment and programming of Cochlear implants 12 , with later experiments revealing correlations between CAEP scores and Mandarin Early Speech Perception tests in children after cochlear implantation surgery 13 . Similarly, experiments have shown increased CAEP presence in subjects with bilateral hearing loss after the hearing aids were applied, particularly with reference to /g/ and /t/ sounds 14 . Clinical application for the cortical auditory evoked potential can be even further extended to the assessment of the ill 15 , as P2 amplitude has shown potential as an indicator of early-stage cognitive impairment, while mismatch negativity within the CAEP may be a good indicator of the likelihood of recovery in comatose patients 16 , 17 .…”

Section: Introductionmentioning

confidence: 82%

Characterization of Volume-Based Changes in Cortical Auditory Evoked Potentials and Prepulse Inhibition

Potter

Nguyen

et al. 2017

Sci Rep

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The auditory evoked startle reflex is a conserved response resulting in neurological and motor activity. The presence of a mild prepulse immediately before the main pulse inhibits startle responses, though the mechanism for this remains unknown. In this study, the electroencephalography (EEG) data recorded from 15 subjects was analyzed to study the N1 and P2 components of cortical auditory evoked potentials (CAEPs) evoked by 70, 80, 90, 100, and 110 dB stimuli both in the presence and absence of 70 dB prepulses. Results without a prepulse showed an evolution of N1 amplitudes, increasing with stimulus intensity and showing largely significant differences. Results from prepulse trials only showed noteworthy changes in peak-to-peak amplitude in the 100 dB condition. Prepulse and non-prepulse conditions were then compared using peak amplitudes and theta power. Prepulse conditions significantly decreased the amplitude for both components in the 110 dB condition, i.e., pre-pulse inhibition, but significantly increased the N1 amplitude in the 70 dB condition, i.e., pre-pulse facilitation. Similarly theta band power significantly increased in the 70 dB prepulse condition and significantly decreased in the 110 dB prepulse condition. These results expand the basis of knowledge regarding how CAEPs change and elaborate on their neural function and representation.

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Section: Introductionmentioning

confidence: 82%

Characterization of Volume-Based Changes in Cortical Auditory Evoked Potentials and Prepulse Inhibition

Potter

Nguyen

et al. 2017

Sci Rep

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“…Auditory cortical evoked potential (ACEP) is a novel method of evaluating hearing loss in children who do not receive reliable feedback to all external sounds (11). ACEP has some of the most common exogenous waves, including P1, N1 and P2, which provide information about sound information's arrival to the auditory cortex (12). P1 latency is a useful biomarker of central auditory development and a powerful, positive response that is easily identified, which occurs following 100-300 msec of stimulation depending on the age of the child (13,14).…”

Section: Introductionmentioning

confidence: 99%

“…. Additionally, N1 is a high negative peak at ~100 msec following the stimulus initiation, but P2 is a second high positive peak at ~200 msec following stimulus (12). N1 initially emerges in the P1 waveform as a bifurcation, which serves as a biomarker of higher-order auditory cortical development (15).…”

Section: Introductionmentioning

confidence: 99%

Application of auditory cortical evoked potentials for auditory assessment in people using auditory prosthesis

Deng

et al. 2018

Exp Ther Med

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The present study explored the application of auditory cortical evoked potentials (ACEP) in the auditory assessment of people using an auditory prosthesis. There were 126 patients with prelingual deafness who were selected from January 2012-June 2017 from the First People's Hospital of Kunshan (Kunshan, China). HEARLab™ system was used to induce a P1-N1-P2 waveform under the condition of 60 dB sound pressure level at /m/, /g/ and /t/ acoustic stimulations. Speech production ability and auditory perception ability of patients were evaluated by speech intelligibility rating (SIR) and categories of auditory performance (CAP). Extraction rate of P1 waves of patients with auditory prosthesis was higher than that of N1 and P2 waves under different acoustic stimulations. A younger initial age and shorter deafness duration before patients used an auditory prosthesis led to more marked P1-N1-P2 waveforms and longer P1 latencies. At /m/ acoustic stimulation, P1 latency and amplitude were negatively associated with the usage time of auditory prosthesis. There were significant differences in the results of SIR and CAP and the initial age of use of auditory prosthesis and deafness duration before patients used the auditory prosthesis. These findings suggest that ACEP can be used to evaluate the auditory assessment of people using an auditory prosthesis. The initial age of use of an auditory prosthesis and deafness duration can affect the P1-N1-P2 waveform and P1 latency of prelingual deafness.

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“…Among the main clinical applications, the verification of hearing aids (8) , cochlear implants (9) , monitoring the maturational process in different populations (9)(10)(11)(12) and the investigation of the cortical threshold (5,13) are the main objectives of this assessment.…”

Section: Introductionmentioning

confidence: 99%

Efeito do estado atencional na detecção automática das respostas auditivas corticais em neonatos

Didoné

Oliveira

Sleifer

et al. 2018

Audiol., Commun. Res.

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RESUMO Objetivo O objetivo desse estudo foi comparar a latência e amplitude do potencial evocado auditivo cortical P1i entre neonatos em estado de alerta e durante o sono leve. Métodos Vinte e cinco neonatos com emissões otoacústicas evocadas transientes presentes foram testados, por meio do potencial evocado auditivo cortical (PEAC), sendo dez em estado de alerta e 15 durante o sono leve. Para pesquisa dos potenciais corticais, utilizou-se o equipamento Hearlab System, de um canal, no módulo Cortical Tone Evaluation (CTE). O potencial P1i foi pesquisado de forma monoaural, na intensidade de 80 dBnNA, para as frequências de 500, 1000, 2000 e 4000Hz. A detecção do P1i foi feita de maneira automática pelo equipamento. A marcação da latência e amplitude foi realizada por três juízes. Resultados Não houve diferença estatisticamente significativa entre os dois grupos de neonatos para os valores de amplitude e latência, nas quatro frequências testadas. Conclusão Não houve influência do estado comportamental dos neonatos na avaliação do potencial cortical P1i.

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Cortical Auditory Evoked Potential: evaluation of speech detection in adult hearing aid users

Cited by 15 publications

References 23 publications

Characterization of Volume-Based Changes in Cortical Auditory Evoked Potentials and Prepulse Inhibition

Characterization of Volume-Based Changes in Cortical Auditory Evoked Potentials and Prepulse Inhibition

Application of auditory cortical evoked potentials for auditory assessment in people using auditory prosthesis

Efeito do estado atencional na detecção automática das respostas auditivas corticais em neonatos

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