Binaural hearing ability with mastoid applied bilateral bone conduction stimulation in normal hearing subjects

Stenfelt, Stefan; Zeitooni, Mehrnaz

doi:10.1121/1.4807637

Cited by 36 publications

(56 citation statements)

References 48 publications

(78 reference statements)

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“…While these benefits are clear for air conducted sound, including that conveyed by conventional hearing aids and cochlear implants, benefits of binaural hearing via bone conduction are less clear. 6, 7 …”

Section: Introductionmentioning

confidence: 99%

“…However, over the past two decades, there has been increased interest in the implantation of bilateral BAHD and evidence that non-negligible transcranial attenuation (TA) and transcranial delay (TD) may allow patients to access binaural cues. 6, 8, 9 Multiple clinical studies have demonstrated improved sound localization and speech in quiet and speech in noise perception with bilateral (versus unilateral) BAHD. 10, 11 Studies in normal-hearing listeners have also demonstrated spatial/binaural benefit with bilateral bone conduction device.…”

Section: Introductionmentioning

confidence: 99%

“…10, 11 Studies in normal-hearing listeners have also demonstrated spatial/binaural benefit with bilateral bone conduction device. 6, 7 Moreover, subjective assessments indicate that patients prefer bilateral BAHD to unilateral BAHD and report improved overall quality of life when utilizing bilateral BAHD. 12, 13 …”

Section: Introductionmentioning

confidence: 99%

“…6, 8, 9 Here we make direct measurements of intracochlear pressures in human cadaveric specimens implanted with BAHDs bilaterally. Our data provide an improved understanding of the complex interactions of bilateral bone-conducted sounds with the cochlea.…”

Section: Introductionmentioning

confidence: 99%

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Intracochlear Measurements of Interaural Time and Level Differences Conveyed by Bilateral Bone Conduction Systems

Farrell

Hartl²,

Benichoux³

et al. 2017

Otology &Amp; Neurotology

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Hypothesis Intracochlear pressures (PIC) and stapes velocity (Vstap) elicited by bilaterally-placed bone anchored hearing devices (BAHD) will be systematically modulated by imposed interaural time (ITD) and level differences (ILD), demonstrating the potential for users of bilateral BAHD to access these binaural cues. Background BAHD are traditionally implanted unilaterally under the assumption that transcranial cross-talk limits interaural differences. Recent studies have demonstrated improvements in binaural and spatial performance with bilateral BAHD; however, objective measures of binaural cues from bilateral BAHDs are lacking. Methods Bone-conduction transducers were coupled to both mastoids of cadaveric specimens via implanted titanium abutments. PIC and Vstap were measured using intracochlear pressure probes and laser Doppler vibrometry, respectively, during stimulation with pure tone stimuli of varied frequency (250–4000 Hz) in ipsilateral, contralateral and bilateral ITD (−1 to 1 ms) and ILD (−20 to 20 dB) conditions. Results Bilateral stimulation produced constructive and destructive interference patterns that varied dramatically with ITD and stimulus frequency. Variation of ITD led to large variation of PIC and Vstap, with opposing effects in ipsilateral and contralateral ears expected to lead to “ITD to ILD conversion”. Variation of ILD produced more straightforward (monotonic) variations of PIC and Vstap, with ipsilateral-favoring ILD producing higher PIC and Vstap than contralateral-favoring. Conclusion Variation of ITDs and ILDs conveyed by BAHDs systematically modulated cochlear inputs. While transcranial cross-talk leads to complex interactions that depend on cue type and stimulus frequency, binaural disparities potentiate binaural benefit, providing a basis for improved sound localization and speech-in-noise perception.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intracochlear Measurements of Interaural Time and Level Differences Conveyed by Bilateral Bone Conduction Systems

Farrell

Hartl²,

Benichoux³

et al. 2017

Otology &Amp; Neurotology

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show abstract

“…Until recently, TC conveyed audio signal but not spatial information, and so the experience was not equivalent (in this respect) to real-world hearing. Latterly, researchers have shown that a considerable of degree of lateralisation, in some case approaching that of normal binaural hearing, is feasible [10][11][12]. Nevertheless, the results lack equivalence in terms of overall spatial performance, significantly lacking spatial attributes such as externalisation, spaciousness, range perception and elevation perception.…”

Section: Tissue Conduction Of Soundmentioning

confidence: 99%

Sensory Augmentation through Tissue Conduction

Lennox¹,

McKenzie²

2017

Proceedings of the Conference on Design and Semantics of Form and Movement - Sense and Sensitivity, DeSForM 2017

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One hundred volunteers have undergone short (5 min) listening tests in a novel multitransducer bone-and-tissue conduction apparatus for spatial audio. The subjects subsequently described their experiences in an unstructured qualitative elicitation exercise. Their responses were aggregated to identify key themes and differences. Emergent themes are: enjoyable, informative, spatial and strange. Tactile supplementation of spatial audio display was noted in a positive light. We note that some spatial attributes are more perceptible than others. The implications for perceptual augmentation are discussed, particularly in relation to conductive hearing deficits. We conclude that the technique has potential for development and discusses future research directions.

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Feel It in My Bones: Composing Multimodal Experience Through Tissue Conduction

Lennox

McKenzie

Brown

2018

Music Technology With Swing

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We outline here the feasibility of coherently utilising tissue conduction for spatial audio and tactile input. Tissue conduction display-specific compositional concerns are discussed; it is hypothesised that the qualia available through this medium substantively differ from those for conventional artificial means of appealing to auditory spatial perception. The implications include that spatial music experienced in this manner constitutes a new kind of experience, and that the ground rules of composition are yet to be established. We refer to results from listening experiences with one hundred listeners in an unstructured attribute elicitation exercise, where prominent themes such as "strange", "weird", "positive", "spatial" and "vibrations" emerged. We speculate on future directions aimed at taking maximal advantage of the principle of multimodal perception to broaden the informational bandwidth of the display system. Some implications for composition for hearing-impaired are elucidated.

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Binaural hearing ability with mastoid applied bilateral bone conduction stimulation in normal hearing subjects

Cited by 36 publications

References 48 publications

Intracochlear Measurements of Interaural Time and Level Differences Conveyed by Bilateral Bone Conduction Systems

Intracochlear Measurements of Interaural Time and Level Differences Conveyed by Bilateral Bone Conduction Systems

Sensory Augmentation through Tissue Conduction

Feel It in My Bones: Composing Multimodal Experience Through Tissue Conduction

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