Effects of stimulus presentation mode and subcortical laterality in speech-evoked auditory brainstem responses

Ahadi, Mohsen; Pourbakht, Akram; Jafari, Amir; Jalaie, Shohreh

doi:10.3109/14992027.2013.866281

Cited by 20 publications

(27 citation statements)

References 40 publications

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“…However, when the subgroups were examined, most of the significant differences between the poor auditory behavioral test performers in the mTBI group compared to controls were seen in the right quiet condition. A right ear advantage for some portions of the speech-ABR has been reported by Hornickel et al (2009), but not consistently observed for all components (Ahadi et al 2014) or in all studies (Vander Werff & Burns 2011). Although injury variables certainly complicate whether ear asymmetries may exist in mTBI, it is interesting that that observed differences were most apparent in the right ear.…”

Section: Discussionmentioning

confidence: 83%

Brainstem Evoked Potential Indices of Subcortical Auditory Processing After Mild Traumatic Brain Injury

Werff

Rieger

2017

Ear &Amp; Hearing

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Objectives The primary aim of this study was to assess subcortical auditory processing in individuals with chronic symptoms following mild traumatic brain injury (mTBI) by measuring auditory brainstem responses (ABRs) to standard click and complex speech stimuli. Consistent with reports in the literature of auditory problems following mTBI (despite normal hearing thresholds), it was hypothesized that individuals with mTBI would have evidence of impaired neural encoding in the auditory brainstem compared to non-injured controls, as evidenced by delayed latencies and reduced amplitudes of ABR components. We further hypothesized that the speech-evoked ABR would be more sensitive than the click-ABR to group differences due to its complex nature, particularly when recorded in a background noise condition. Design Click- and speech-ABRs were collected in 32 individuals diagnosed with mTBI in the past 3–18 months. All mTBI participants were experiencing on-going injury symptoms for which they were seeking rehabilitation through a brain injury rehabilitation management program. The same data were collected in a group of 32 age- and gender-matched controls with no history of head injury. ABRs were recorded in both left and right ears for all participants in all conditions. Speech-ABRs were collected in both quiet and in a background of continuous 20-talker babble ipsilateral noise. Peak latencies and amplitudes were compared between groups, and across subgroups of mTBI participants categorized by their behavioral auditory test performance. Results Click-ABR results were not significantly different between the mTBI and control groups. However, when comparing the control group to only those mTBI subjects with measurably decreased performance on auditory behavioral tests, small differences emerged including delayed latencies for waves I, III, and V. Similarly, few significant group differences were observed for peak amplitudes and latencies of the speech-ABR when comparing at the whole group level but were again observed between controls and those mTBI subjects with abnormal behavioral auditory test performance. These differences were seen for the onset portions of the speech-ABR waveforms in quiet, and were close to significant for the onset wave. Across groups, quiet vs. noise comparisons were significant for most speech-ABR measures but the noise condition did not reveal more group differences than speech-ABR in quiet, likely due to variability and overall small amplitudes in this condition for both groups. Conclusions The outcomes of this study indicate that subcortical neural encoding of auditory information is affected in a significant portion of individuals with long-term problems following mTBI. These subcortical differences appear to relate to performance on tests of auditory processing and perception, even in the absence of significant hearing loss on the audiogram. While confounds of age and slight differences in audiometric thresholds can’t be ruled out, these preliminary results are consistent with the id...

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Section: Discussionmentioning

confidence: 83%

Brainstem Evoked Potential Indices of Subcortical Auditory Processing After Mild Traumatic Brain Injury

Werff

Rieger

2017

Ear &Amp; Hearing

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“…Only a few studies have focused on FFR in the elderly, with the most reported population being young adults [54]. Some researchers have pointed to the clinical applicability of FFR in different populations and with different pathologies [7,19,37,55].…”

Section: Frequency Following Response: Evaluation In Adults and The Ementioning

confidence: 99%

The Frequency Following Response: Evaluations in Different Age Groups

Sanfins¹,

Garcia²,

Biaggio³

et al. 2020

The Human Auditory System - Basic Features and Updates on Audiological Diagnosis and Therapy

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In this chapter, recent data on the clinical application of the frequency following response (FFR) in different age groups will be presented. The chapter begins with the importance of using speech sounds in electrophysiological assessments. Then the FFR methodology is presented, giving normative data and the expected responses in different age groups: infants and young children, children and adolescents, and adults and the elderly. Finally, the unique responses of each age group are presented in order to show how this new technology can be an extremely useful tool for diagnosing hearing dysfunction.

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“…However, additional studies have been initiated in numerous languages such as Arabic, Brazilian Portuguese, French, Greek, Hebrew, Indian, Japanese, and Persian [1,11,13,[22][23][24][25][26][27][28][29][30][31][32].…”

Section: Parametersmentioning

confidence: 99%

“…Ahadi et al [25] presented the sound stimulus on three conditions: monaural right, monaural, and binaural left. They showed that the magnitude and strength of speech ABR responses depend on the stimulus presentation mode, and the binaural presentation of speech syllable enables better visualization of the response, however,…”

Section: Stimulated Earmentioning

confidence: 99%

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Speech-Evoked Brainstem Response

Sanfins¹,

Skarżyński²,

FranciscaColella-Santos³

2017

Advances in Clinical Audiology

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The auditory brainstem response (ABR) is a clinical tool to assess the neural functionality of the auditory brainstem. The use of verbal stimuli in ABR protocols has provided important information of how the speech stimuli are processed by the brainstem structure. The perception of speech sounds seems to begin in the brainstem, which has an important role in the reading process and the phonological acquisition speech ABR assessment allows the identification of fine-grained auditory processing deficits, which do not appear in click evoked ABR responses. The syllable /da/ is commonly used by speech ABR assessment due to it being considered a universal syllable and allows it to be applied in different countries with good clinical assertiveness. The speech ABR is a objective, fast procedure that can be applied to very young subjects. It be utilized in different languages and can provide differential diagnoses of diseases with similar symptoms, as an effective biomarker of auditory processing disorders present in various diseases, such as dyslexia, specific language impairment, hearing loss, auditory processing disorders, otitis media, and scholastic difficulties. Speech ABR protocols can assist in the detection, treatment, and monitoring of various types of hearing impairments.

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Effects of stimulus presentation mode and subcortical laterality in speech-evoked auditory brainstem responses

Abstract: The timing of speech-evoked responses is not related to the stimulus presentation mode; however, binaural stimulation produces more robust responses. Lateral asymmetry in the representation of speech elements was not considerable at the brainstem level.

Cited by 20 publications

References 40 publications

Brainstem Evoked Potential Indices of Subcortical Auditory Processing After Mild Traumatic Brain Injury

Brainstem Evoked Potential Indices of Subcortical Auditory Processing After Mild Traumatic Brain Injury

The Frequency Following Response: Evaluations in Different Age Groups

Speech-Evoked Brainstem Response

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