Audiovisual Speech Perception in Elderly Cochlear Implant Recipients

Hay-McCutcheon, Marcia J.; Pisoni, David B.; Kirk, Karen Iler

doi:10.1097/01.mlg.0000173197.94769.ba

Cited by 44 publications

(37 citation statements)

References 19 publications

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“…Because of the large age difference between normal-hearing and cochlear-implant listeners as well as the known cognitive differences in sensory and cross-modality processing (Walden et al, 1993;Gordon-Salant and Fitzgibbons, 1997;Humes, 2002;Hay-McCutcheon et al, 2005), three elderly, nearly normal-hearing listeners (average age = 77) were recruited to evaluate whether age is a significant factor in the present study. Pure-tone averages (across 500, 1000 and 2000 Hz) of two subjects were below 15 dB HL, and the third subject had a pure-tone average of 22 dB HL.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, the implant users rely more than normal listeners on the visual cue, forcing them to become not only better speechreaders but also better multi-sensory integrators (Goh et al, 2001;Clark, 2003;Schorr et al, 2005;Rouger et al, 2007). Indeed, some cochlear-implant users can integrate AV cues to increase the functional SNR in noise (Lachs et al, 2001;Bergeson et al, 2005;Hay-McCutcheon et al, 2005;Moody-Antonio et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Auditory-visual speech perception in normal-hearing and cochlear-implant listeners

Desai

Stickney

Zeng

2008

The Journal of the Acoustical Society of America

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The present study evaluated auditory-visual speech perception in cochlear-implant users as well as normal-hearing and simulated-implant controls to delineate relative contributions between sensory experience and cues. Auditory-only, visual-only, or auditory-visual speech perception was examined in the context of categorical perception, in which an animated face mouthing /ba/, /da/, or /ga/ was paired with synthesized phonemes from an 11-token auditory continuum. A 3-alternative, forcedchoice, method was used to yield percent identification scores. Normal-hearing listeners showed sharp phoneme boundaries and strong reliance on the auditory cue, whereas actual and simulated implant listeners showed much weaker categorical perception but stronger dependence on the visual cue. The implant users were able to integrate both congruent and incongruent acoustic and optical cues to derive relatively weak but significant auditory-visual integration. This auditory-visual integration was correlated with the duration of the implant experience but not the duration of deafness. Compared with the actual implant performance, acoustic simulations of the cochlear implant could predict the auditory-only performance but not the auditory-visual integration. These results suggest that both altered sensory experience and improvised acoustic cues contribute to the auditory-visual speech perception in cochlear-implant users.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Auditory-visual speech perception in normal-hearing and cochlear-implant listeners

Desai

Stickney

Zeng

2008

The Journal of the Acoustical Society of America

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“…None of the studies referred to above tested for audio-visual presentations, despite NH listeners' reliance on lip-reading (Sumby and Pollack, 1954;Summerfield, 1987Summerfield, , 1992 and CI users' higher reliance on lip-reading (Hay-McCutcheon et al, 2005;Rouger et al, 2007;Schorr et al, 2005;Strelnikov et al, 2009) in noisy situations. The first experiment of the present report aims to show that in situations similar to those described in Grange and Culling (2016), CI users too, can obtain a significant HOB.…”

Section: Introductionmentioning

confidence: 99%

Head orientation benefit to speech intelligibility in noise for cochlear implant users and in realistic listening conditions

Grange

Culling

2016

The Journal of the Acoustical Society of America

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Cochlear implant (CI) users suffer from elevated speech-reception thresholds and may rely on lip reading. Traditional measures of spatial release from masking quantify speech-reception-threshold improvement with azimuthal separation of target speaker and interferers and with the listener facing the target speaker. Substantial benefits of orienting the head away from the target speaker were predicted by a model of spatial release from masking. Audio-only and audio-visual speech-reception thresholds in normal-hearing (NH) listeners and bilateral and unilateral CI users confirmed model predictions of this head-orientation benefit. The benefit ranged 2–5 dB for a modest 30° orientation that did not affect the lip-reading benefit. NH listeners' and CI users' lip-reading benefit measured 3 and 5 dB, respectively. A head-orientation benefit of ∼2 dB was also both predicted and observed in NH listeners in realistic simulations of a restaurant listening environment. Exploiting the benefit of head orientation is thus a robust hearing tactic that would benefit both NH listeners and CI users in noisy listening conditions.

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“…HL results primarily in a decline in auditory speech perception (Humes & Roberts 1990); however, changes in visual perceptual abilities indicate that adaptation to HL is not limited to the auditory modality. On the one hand, younger adults with early-onset hearing impairment are better at lipreading sentences than controls (Auer et al 2007), but even in normal-hearing (NH) people, this ability declines with age (Cienkowski & Carney 2002;Hay-McCutcheon et al 2005;Sommers et al 2005). Although investigations of unimodal perception in isolation help us understand how HL in older adults affects auditory and visual abilities, everyday perception for most people involves the combination of these inputs.…”

Section: Introductionmentioning

confidence: 99%

Audiovisual Deficits in Older Adults with Hearing Loss: Biological Evidence

Musacchia

Arum²,

Nicol³

et al. 2009

Ear &Amp; Hearing

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Objective:To examine the impact of hearing loss (HL) on audiovisual (AV) processing in the aging population. We hypothesized that agerelated HL would have a pervasive effect on sensory processing, extending beyond the auditory domain. Specifically, we predicted that decreased auditory input to the neural system, in the form of HL over time, would have deleterious effects on multisensory mechanisms. Design:This study compared AV processing between older adults with normal hearing (N ϭ 12) and older adults with mild to moderate sensorineural HL (N ϭ 12). To do this, we recorded cortical evoked potentials that were elicited by watching and listening to recordings of a speaker saying the syllable "bi." Stimuli were presented in three conditions: when hearing the syllable "bi" (auditory), when viewing a person say "bi" (visual), and when seeing and hearing the syllables simultaneously (AV). Presentation level of the auditory stimulus was set to ϩ30 dB SL for each listener to equalize auditory input across groups. Results:In the AV condition, the normal-hearing group showed a clear and consistent decrease in P1 and N1 latencies as well as a reduction in P1 amplitude compared with the sum of the unimodal components (auditory ϩ visual). These integration effects were absent or less consistent in HL participants.Conclusions: Despite controlling for auditory sensation level, visual influence on auditory processing was significantly less pronounced in HL individuals compared with controls, indicating diminished AV integration in this population. These results demonstrate that HL has a deleterious effect on how older adults combine what they see and hear. Although auditory amplification vastly improves the communication abilities in most HLs, the associated atrophy of multisensory mechanisms may contribute to a patient's difficulty in everyday settings. Our findings and related studies emphasize the potential value of multimodal tasks and stimuli in the assessment and rehabilitation of hearing impairments.

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Audiovisual Speech Perception in Elderly Cochlear Implant Recipients

Cited by 44 publications

References 19 publications

Auditory-visual speech perception in normal-hearing and cochlear-implant listeners

Auditory-visual speech perception in normal-hearing and cochlear-implant listeners

Head orientation benefit to speech intelligibility in noise for cochlear implant users and in realistic listening conditions

Audiovisual Deficits in Older Adults with Hearing Loss: Biological Evidence

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