Medial olivocochlear function in children with poor speech-in-noise performance and language disorder

Rocha-Muniz, Caroline Nunes; Carvallo, Renata Mota Mamede; Schochat, Eliane

doi:10.1016/j.ijporl.2017.03.003

Cited by 16 publications

(14 citation statements)

References 41 publications

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“…Taken together, the findings of the present study are inconsistent with prior reports, including one of our own (Boothalingam et al, 2015a;Garinis et al, 2008;Muchnik et al, 2004;Rocha-Muniz, Mota-Carvalo, & Schochat, 2017;Yalc¸inkaya, Yilmaz, & Muluk, 2010) but are consistent with others (Butler et al, 2011;Clarke et al, 2006;Veuillet et al, 2007) in that the MOCR function in children with LiD does not differ from their TD peers. Several reasons could have led to the difference in findings between the present study and studies that report group differences between children/ adults with APD (or related disorders) and their respective controls.…”

Section: Binaural Interaction Of the Mocr Is Not Different Between Lid And Td Groupscontrasting

confidence: 97%

The Medial Olivocochlear Reflex Is Unlikely to Play a Role in Listening Difficulties in Children

et al. 2019

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The medial olivocochlear reflex (MOCR) has been implicated in several auditory processes. The putative role of the MOCR in improving speech perception in noise is particularly relevant for children who complain of listening difficulties (LiD). The hypothesis that the MOCR may be impaired in individuals with LiD or auditory processing disorder has led to several investigations but without consensus. In two related studies, we compared the MOCR functioning of children with LiD and typically developing (TD) children in the same age range (7–17 years). In Study 1, we investigated ipsilateral, contralateral, and bilateral MOCR using forward-masked click-evoked otoacoustic emissions (CEOAEs; n = 17 TD, 17 LiD). In Study 2, we employed three OAE types: CEOAEs ( n = 16 TD, 21 LiD), stimulus frequency OAEs ( n = 21 TD, 30 LiD), and distortion product OAEs ( n = 17 TD, 22 LiD) in a contralateral noise paradigm. Results from both studies suggest that the MOCR functioning is not significantly different between the two groups. Some likely reasons for differences in findings among published studies could stem from the lack of strict data quality measures (e.g., high signal-to-noise ratio, control for the middle ear muscle reflex) that were enforced in the present study. The inherent variability of the MOCR, the subpar reliability of current MOCR methods, and the heterogeneity in auditory processing deficits that underlie auditory processing disorder make detecting clinically relevant differences in MOCR function impractical using current methods.

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Section: Binaural Interaction Of the Mocr Is Not Different Between Lid And Td Groupscontrasting

confidence: 97%

The Medial Olivocochlear Reflex Is Unlikely to Play a Role in Listening Difficulties in Children

et al. 2019

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“…( 187 )], dyslexia [e.g., Ref. ( 188 )], ankylosing spondylitis ( 189 ), migraine and phonophobia in women ( 190 ), or poorer speech-in-noise recognition and language impairment in children ( 191 ). Efferent suppression of cochlear activity by the MOC efferent system appears to be enhanced in individuals with tinnitus and/or hyperacusis ( 192 , 193 ).…”

Section: Clinical Relevance and Special Populationsmentioning

confidence: 99%

Olivocochlear Efferents in Animals and Humans: From Anatomy to Clinical Relevance

Lopez‐Poveda

2018

Front. Neurol.

103

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Olivocochlear efferents allow the central auditory system to adjust the functioning of the inner ear during active and passive listening. While many aspects of efferent anatomy, physiology and function are well established, others remain controversial. This article reviews the current knowledge on olivocochlear efferents, with emphasis on human medial efferents. The review covers (1) the anatomy and physiology of olivocochlear efferents in animals; (2) the methods used for investigating this auditory feedback system in humans, their limitations and best practices; (3) the characteristics of medial-olivocochlear efferents in humans, with a critical analysis of some discrepancies across human studies and between animal and human studies; (4) the possible roles of olivocochlear efferents in hearing, discussing the evidence in favor and against their role in facilitating the detection of signals in noise and in protecting the auditory system from excessive acoustic stimulation; and (5) the emerging association between abnormal olivocochlear efferent function and several health conditions. Finally, we summarize some open issues and introduce promising approaches for investigating the roles of efferents in human hearing using cochlear implants.

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“…In another study, Clarke et al 28 studied the TEOAE suppression effect in children with specific language impairments and suggested that children with specific language impairment do not have auditory processing problems at the MOC system level. Contrary to Clarke et al’s 28 findings, Rocha-Muniz et al 20 determined that children with specific language impairment and poor speech-in-noise performance had reduced TEOAE suppression compared with the typical development group.…”

Section: Discussionmentioning

confidence: 78%

“… 15 , 16 Some studies reported evidence of MOC functioning alterations in individuals with auditory processing disorders (APDs) 17 – 19 and specific language impairment. 20 However, a study of eight children with phonological disorders found no differences between the study and control groups with regard to transient evoked OAE (TEOAE) suppression effect. 21…”

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confidence: 97%

Contralateral Suppression of Transient Evoked Otoacoustic Emissions in Children with Phonological Disorder

2020

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Background Perception of acoustic details in the speech signal is important for speech sound development. The medial olivocochlear pathway, a part of the auditory efferent system, plays a role in stimulus-related control of the cochlea. One clinical tool to evaluate the medial olivocochlear activity, which is thought to improve speech perception in noise, is the suppression of otoacoustic emissions. Aims This study investigated the suppression of transient evoked otoacoustic emissions in children with phonological disorder in comparison with that in typically developing controls. Study Design Case-control study. Methods A total of 23 children with phonological disorder (aged 5–10 years) and 21 age- and sex-matched controls ( P > 0.05) participated in the study. Participants had pure-tone thresholds ≤ 15 dB hearing loss and normal middle ear functions. Transient evoked otoacoustic emissions with and without contralateral acoustic stimulation were measured. Results Although the mean transient evoked otoacoustic emissions suppressions were lower in the group with phonological disorder than in the controls, these differences were not statistically significant ( P > 0.05). No left/right ear asymmetry of transient evoked otoacoustic emissions suppression was detected in either of the groups ( P > 0.05). Conclusion Children with phonological disorder did not show alterations in medial olivocochlear functioning in the medial olivocochlear activity as measured by the contralateral suppression of transient evoked otoacoustic emissions.

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Medial olivocochlear function in children with poor speech-in-noise performance and language disorder

Cited by 16 publications

References 41 publications

The Medial Olivocochlear Reflex Is Unlikely to Play a Role in Listening Difficulties in Children

The Medial Olivocochlear Reflex Is Unlikely to Play a Role in Listening Difficulties in Children

Olivocochlear Efferents in Animals and Humans: From Anatomy to Clinical Relevance

Contralateral Suppression of Transient Evoked Otoacoustic Emissions in Children with Phonological Disorder

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