Modeling Horizontal Localization of Complex Sounds in the Impaired and Aided Impaired Auditory System

Goff, Nicolas Le; Buchholz, Jörg M.; Dau, Torsten

doi:10.1007/978-3-642-37762-4_5

Cited by 8 publications

(5 citation statements)

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“…The modeling approaches that have been most successful in predicting the binaural abilities of individual listeners (rather than group differences) have combined pure-tone detection thresholds with metrics unrelated to spatial cues such as age, measures of speech understanding ( Kubiak et al, 2020 ), and/or measures of cognitive function ( Gallun and Jakien, 2019 ). In addition, there are computational modeling approaches that show great promise in helping identify the specific mechanisms responsible for binaural impairment ( Le Goff et al, 2013 ; Mao et al, 2015 ; Moncada-Torres et al, 2018 ). The most promising opportunities for future research are those that involve a process of informational feedback between human patient research and targeted animal and computational models.…”

Section: Studies On Binaural Function With Participants With Peripheral Hearing Lossmentioning

confidence: 99%

Impaired Binaural Hearing in Adults: A Selected Review of the Literature

Gallun

2021

Front. Neurosci.

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Despite over 100 years of study, there are still many fundamental questions about binaural hearing that remain unanswered, including how impairments of binaural function are related to the mechanisms of binaural hearing. This review focuses on a number of studies that are fundamental to understanding what is known about the effects of peripheral hearing loss, aging, traumatic brain injury, strokes, brain tumors, and multiple sclerosis (MS) on binaural function. The literature reviewed makes clear that while each of these conditions has the potential to impair the binaural system, the specific abilities of a given patient cannot be known without performing multiple behavioral and/or neurophysiological measurements of binaural sensitivity. Future work in this area has the potential to bring awareness of binaural dysfunction to patients and clinicians as well as a deeper understanding of the mechanisms of binaural hearing, but it will require the integration of clinical research with animal and computational modeling approaches.

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Section: Studies On Binaural Function With Participants With Peripheral Hearing Lossmentioning

confidence: 99%

Impaired Binaural Hearing in Adults: A Selected Review of the Literature

Gallun

2021

Front. Neurosci.

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“…Furthermore, on subjective ratings, listeners with SNHI are known to experience more serious localization difficulties that increase with the degree of HI (Noble et al, 1997 ; Glyde et al, 2013 ). Deficits in a number of peripheral and central processes including reduced audibility (Brimijoin and Akeroyd, 2016 ), impaired frequency selectivity (Strelcyk and Dau, 2009 ), poor temporal resolution, altered filtered shapes (Baker and Rosen, 2002 ; Bernstein and Oxenham, 2006 ), and increased spectral and temporal masking (Le Goff et al, 2013 ) can be conceived as factors for impaired spatial processing in SNHI listeners.…”

Section: Introductionmentioning

confidence: 99%

Spatial rehabilitation using virtual auditory space training paradigm in individuals with sensorineural hearing impairment

Nisha

Uppunda²,

Kumar³

2023

Front. Neurosci.

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PurposeThe present study aimed to quantify the effects of spatial training using virtual sources on a battery of spatial acuity measures in listeners with sensorineural hearing impairment (SNHI).MethodsAn intervention-based time-series comparison design involving 82 participants divided into three groups was adopted. Group I (n = 27, SNHI-spatially trained) and group II (n = 25, SNHI-untrained) consisted of SNHI listeners, while group III (n = 30) had listeners with normal hearing (NH). The study was conducted in three phases. In the pre-training phase, all the participants underwent a comprehensive assessment of their spatial processing abilities using a battery of tests including spatial acuity in free-field and closed-field scenarios, tests for binaural processing abilities (interaural time threshold [ITD] and level difference threshold [ILD]), and subjective ratings. While spatial acuity in the free field was assessed using a loudspeaker-based localization test, the closed-field source identification test was performed using virtual stimuli delivered through headphones. The ITD and ILD thresholds were obtained using a MATLAB psychoacoustic toolbox, while the participant ratings on the spatial subsection of speech, spatial, and qualities questionnaire in Kannada were used for the subjective ratings. Group I listeners underwent virtual auditory spatial training (VAST), following pre-evaluation assessments. All tests were re-administered on the group I listeners halfway through training (mid-training evaluation phase) and after training completion (post-training evaluation phase), whereas group II underwent these tests without any training at the same time intervals.Results and discussionStatistical analysis showed the main effect of groups in all tests at the pre-training evaluation phase, with post hoc comparisons that revealed group equivalency in spatial performance of both SNHI groups (groups I and II). The effect of VAST in group I was evident on all the tests, with the localization test showing the highest predictive power for capturing VAST-related changes on Fischer discriminant analysis (FDA). In contrast, group II demonstrated no changes in spatial acuity across timelines of measurements. FDA revealed increased errors in the categorization of NH as SNHI-trained at post-training evaluation compared to pre-training evaluation, as the spatial performance of the latter improved with VAST in the post-training phase.ConclusionThe study demonstrated positive outcomes of spatial training using VAST in listeners with SNHI. The utility of this training program can be extended to other clinical population with spatial auditory processing deficits such as auditory neuropathy spectrum disorder, cochlear implants, central auditory processing disorders etc.

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“…This model includes a "cue-selection" mechanism whereby instantaneous ITDs and ILDs are estimated as reliable (for localization) when the instantaneous IC is above a predefined threshold. This mechanism is also included in the model of Le Goff et al (2013a), which is based on the equalization cancellation approach (Durlach, 1963), as well as the binaural multi-source localization model proposed by Dietz et al (2011). As discussed in Faller and Merima (2004) and Le Goff et al (2013a), a shortcoming of the cueselection mechanism is that the IC threshold is chosen arbitrarily and that the best predictions are obtained for IC thresholds that depend on frequency and the amount of room reverberation.…”

Section: Introductionmentioning

confidence: 99%

“…This mechanism is also included in the model of Le Goff et al (2013a), which is based on the equalization cancellation approach (Durlach, 1963), as well as the binaural multi-source localization model proposed by Dietz et al (2011). As discussed in Faller and Merima (2004) and Le Goff et al (2013a), a shortcoming of the cueselection mechanism is that the IC threshold is chosen arbitrarily and that the best predictions are obtained for IC thresholds that depend on frequency and the amount of room reverberation. Furthermore, neither model specifies effects of integration of ITD and ILD information across frequency, although most natural sounds, such as speech, are broadband.…”

Section: Introductionmentioning

confidence: 99%

Localization of broadband sounds carrying interaural time differences: Effects of frequency, reference location, and interaural coherence

Buchholz

Goff

Dau

2018

The Journal of the Acoustical Society of America

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Modeling Horizontal Localization of Complex Sounds in the Impaired and Aided Impaired Auditory System

Cited by 8 publications

References 58 publications

Impaired Binaural Hearing in Adults: A Selected Review of the Literature

Impaired Binaural Hearing in Adults: A Selected Review of the Literature

Spatial rehabilitation using virtual auditory space training paradigm in individuals with sensorineural hearing impairment

Localization of broadband sounds carrying interaural time differences: Effects of frequency, reference location, and interaural coherence

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