Effect of Audiovisual Training on Monaural Spatial Hearing in Horizontal Plane

Strelnikov, Kuzma; Rosito, Maxime; Barone, Pascal

doi:10.1371/journal.pone.0018344

Cited by 58 publications

(88 citation statements)

References 86 publications

(107 reference statements)

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“…Thus, synchronous audiovisual training enhances the recovery of accurate sound localization by human subjects wearing a unilateral earplug [85], and improves the perception of spectrally degraded speech by listeners with normal hearing [86]. These findings suggest that it might be beneficial to combine visual and auditory cues in the rehabilitation of the hearing impaired.…”

Section: Visual Influences On Auditory Spatial Plasticitymentioning

confidence: 78%

Sound localization in a changing world

Keating

King

2015

Current Opinion in Neurobiology

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In natural environments, neural systems must be continuously updated to reflect changes in sensory inputs and behavioral goals. Recent studies of sound localization have shown that adaptation and learning involve multiple mechanisms that operate at different timescales and stages of processing, with other sensory and motor-related inputs playing a key role. We are only just beginning to understand, however, how these processes interact with one another to produce adaptive changes at the level of neuronal populations and behavior. Because there is no explicit map of auditory space in the cortex, studies of sound localization may also provide much broader insight into the plasticity of complex neural representations that are not topographically organized.

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Section: Visual Influences On Auditory Spatial Plasticitymentioning

confidence: 78%

Sound localization in a changing world

Keating

King

2015

Current Opinion in Neurobiology

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“…It is of importance that a visuo‐auditory synergy can lead to the improvement in unimodal speech processing, either auditory or visual. Indeed, audio‐visual practice allows a significant increase in perceptual performance in a single modality alone (Frassinetti et al ., ; Seitz et al ., ; Strelnikov et al ., ). Our recent study demonstrated an increase in speech‐reading skills in CI patients during the first months of experience of the implant (Strelnikov et al ., ), suggesting that a strong positive feedback consolidates the decoding of visual cues with auditory information resulting in an increase in speech‐reading performance.…”

Section: Discussionmentioning

confidence: 99%

Increased audiovisual integration in cochlear‐implanted deaf patients: independent components analysis of longitudinal positron emission tomography data

Strelnikov

Rouger

Lagleyre

et al. 2015

Eur J of Neuroscience

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It has been demonstrated in earlier studies that patients with a cochlear implant have increased abilities for audio-visual integration because the crude information transmitted by the cochlear implant requires the persistent use of the complementary speech information from the visual channel. The brain network for these abilities needs to be clarified. We used an independent components analysis (ICA) of the activation (H2(15)O) positron emission tomography data to explore occipito-temporal brain activity in post-lingually deaf patients with unilaterally implanted cochlear implants at several months post-implantation (T1), shortly after implantation (T0) and in normal hearing controls. In between-group analysis, patients at T1 had greater blood flow in the left middle temporal cortex as compared with T0 and normal hearing controls. In within-group analysis, patients at T0 had a task-related ICA component in the visual cortex, and patients at T1 had one task-related ICA component in the left middle temporal cortex and the other in the visual cortex. The time courses of temporal and visual activities during the positron emission tomography examination at T1 were highly correlated, meaning that synchronized integrative activity occurred. The greater involvement of the visual cortex and its close coupling with the temporal cortex at T1 confirm the importance of audio-visual integration in more experienced cochlear implant subjects at the cortical level.

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“…Strelnikov et al reported the effect of previous localization training on monaural hearing [5], and Slattery and Middlebrooks reported that a few congenitally monaural deaf people are able to localize sound generally over 360…”

Section: Discussionmentioning

confidence: 99%

Horizontal Localization of Sound Images and Sound Sources for Monaural Congenital Deafness

Takahashi

Morikawa

2017

Journal of Signal Processing

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It is well known that the interaural time difference, interaural level difference and spectral cues are used to determine three-dimensional sound localization in binaural hearing. In the case of monaural hearing, the interaural time difference and interaural level difference are not used. Therefore, it is assumed that there is a different perception of sound localization between binaural and monaural hearing. In this study, we investigate the difference in the horizontal localization of sound images and sources in monaural hearing. An experiment involving horizontal sound localization was performed with one female participant suffering from congenital complete hearing loss in the left ear. The experimental system consisted of 12 loudspeakers placed horizontally on the circumference of a circle having a radius of 1 m at 30• intervals. Four experimental sessions were performed (including 60 white-noise stimuli per session). Excluding the instances with no localization (12%), all sound images were localized on the right side (0-180• ). It appeared that sound images were localized on the side with the normal-hearing ear but not on the side with the deaf ear. Sound source localization was possible generally over 360• (with ± 30 • allowance, 90.8%). As a result, we confirmed that the localization of sound images and sources was different in congenital monaural hearing.

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Effect of Audiovisual Training on Monaural Spatial Hearing in Horizontal Plane

Cited by 58 publications

References 86 publications

Sound localization in a changing world

Sound localization in a changing world

Increased audiovisual integration in cochlear‐implanted deaf patients: independent components analysis of longitudinal positron emission tomography data

Horizontal Localization of Sound Images and Sound Sources for Monaural Congenital Deafness

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