Auditory steady state responses recorded in multitalker babble

Leigh-Paffenroth, Elizabeth D.; Murnane, Owen D.

doi:10.3109/14992027.2010.532512

Cited by 7 publications

(8 citation statements)

References 65 publications

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“…There are several reasons why contralateral suppression of ASSRs may be a promising tool for studying MOC activity. First, ASSRs can be measured at suprathreshold stimulus levels in ears with significant hearing loss and demonstrate similar amplitudes as normal-hearing individuals (Rodriguez et al, 1986;Vander Werff and Brown, 2005;Leigh-Paffenroth and Murnane, 2011). Second, ASSR amplitudes decrease in the presence of contralateral noise (Maki et al, 2009;Kawase et al, 2012;Kiyokawa et al, 2012;Usubuchi et al, 2014), which may be due at least in part to MOC activity.…”

Section: Introductionmentioning

confidence: 95%

Concurrent measures of contralateral suppression of transient-evoked otoacoustic emissions and of auditory steady-state responses

Mertes

Leek

2016

The Journal of the Acoustical Society of America

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Contralateral suppression of otoacoustic emissions (OAEs) is frequently used to assess the medial olivocochlear (MOC) efferent system, and may have clinical utility. However, OAEs are weak or absent in hearing-impaired ears, so little is known about MOC function in the presence of hearing loss. A potential alternative measure is contralateral suppression of the auditory steady-state response (ASSR) because ASSRs are measurable in many hearing-impaired ears. This study compared contralateral suppression of both transient-evoked otoacoustic emissions (TEOAEs) and ASSRs in a group of ten primarily older adults with either normal hearing or mild sensorineural hearing loss. Responses were elicited using 75-dB peak sound pressure level clicks. The MOC was activated using contralateral broadband noise at 60 dB sound pressure level. Measurements were made concurrently to ensure a consistent attentional state between the two measures. The magnitude of contralateral suppression of ASSRs was significantly larger than contralateral suppression of TEOAEs. Both measures usually exhibited high test-retest reliability within a session. However, there was no significant correlation between the magnitude of contralateral suppression of TEOAEs and of ASSRs. Further work is needed to understand the role of the MOC in contralateral suppression of ASSRs.

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Section: Introductionmentioning

confidence: 95%

Concurrent measures of contralateral suppression of transient-evoked otoacoustic emissions and of auditory steady-state responses

Mertes

Leek

2016

The Journal of the Acoustical Society of America

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“…ASSR robustness and synchrony, measured via phaselocking and stimulus-to-response correlations, additionally predicted SIN at a moderate modulation depth of Ϫ4 dB. Notably, ASSR amplitude, which is a common method of quantifying ASSR, was the only ASSR metric that predicted SIN only at a modulation depth of Ϫ8 dB and not at Ϫ4 dB; previous studies using ASSR amplitude as a metric of temporal envelope processing may not have shown relationships be-tween ASSR and SIN if stimulus modulation envelopes were not shallow enough (Guest et al 2018;Leigh-Paffenroth and Murnane 2011). No ASSR metric predicted SIN scores at full modulation (m ϭ 0 dB).…”

Section: Discussionmentioning

confidence: 93%

“…Guest et al (2018) quantified both ASSR amplitude and the change in amplitude with modulation depth and found that neither predicted a difference between listeners with and without SIN difficulties. In two additional studies with both normal-hearing and hearing-impaired listeners, subcortical ASSRs from normal-hearing listeners were not associated with the speech-reception thresholds of masked sentences (Goossens et al 2018) or with word identification in noise and in quiet (Leigh-Paffenroth and Murnane 2011), but ASSRs from hearing-impaired listeners demonstrated a mixed pattern of results: stronger subcortical responses were associated with poorer SIN in Goossens et al ( 2018), but with better SIN in Leigh-Paffenroth and Murnane (2011). Taken together, these studies extend the speech-evoked FFR literature to show that subcortical neural temporal processing relates to SIN perception but provide conflicting findings regarding the precise relationship between sustained envelope encoding and SIN perception.…”

Section: Introductionmentioning

confidence: 97%

Sustained envelope periodicity representations are associated with speech-in-noise performance in difficult listening conditions for younger and older adults

McClaskey

Dias

Harris

2019

Journal of Neurophysiology

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Temporal modulations are an important part of speech signals. An accurate perception of these time-varying qualities of sound is necessary for successful communication. The current study investigates the relationship between sustained envelope encoding and speech-in-noise perception in a cohort of normal-hearing younger (ages 18–30 yr, n = 22) and older adults (ages 55–90+ yr, n = 35) using the subcortical auditory steady-state response (ASSR). ASSRs were measured in response to the envelope of 400-ms amplitude-modulated (AM) tones with 3,000-Hz carrier frequencies and 80-Hz modulation frequencies. AM tones had modulation depths of 0, −4, and −8 dB relative to m = 1 ( m = 1, 0.631, and 0.398, respectively). The robustness, strength at modulation frequency, and synchrony of subcortical envelope encoding were quantified via time-domain correlations, spectral amplitude, and phase-locking value, respectively. Speech-in-noise ability was quantified via the QuickSIN test in the 0- and 5-dB signal-to-noise (SNR) conditions. All ASSR metrics increased with increasing modulation depth and there were no effects of age group. ASSR metrics in response to shallow modulation depths predicted 0-dB speech scores. Results demonstrate that sustained amplitude envelope processing in the brainstem relates to speech-in-noise abilities, but primarily in difficult listening conditions at low SNRs. These findings furthermore highlight the utility of shallow modulation depths for studying temporal processing. The absence of age effects in these data demonstrate that individual differences in the robustness, strength, and specificity of subcortical envelope processing, and not age, predict speech-in-noise performance in the most difficult listening conditions. NEW & NOTEWORTHY Failure to correctly understand speech in the presence of background noise is a significant problem for many normal-hearing adults and may impede healthy communication. The relationship between sustained envelope encoding in the brainstem and speech-in-noise perception remains to be clarified. The present study demonstrates that the strength, specificity, and robustness of the brainstem’s representations of sustained stimulus periodicity relates to speech-in-noise perception in older and younger normal-hearing adults, but only in highly challenging listening environments.

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“…In the masked condition, one of the seven words was masked by simultaneously playing 20-talker babble at 38 dB (Leigh-Paffenroth & Murnane, 2011). This represents a signal-to-noise ratio (SNR) of +2; a level allowing for generally successful word recognition albeit with perceptual effort.…”

Section: Methodsmentioning

confidence: 99%

Acoustic masking disrupts time-dependent mechanisms of memory encoding in word-list recall

et al. 2013

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Recall of recently heard words is affected by the clarity of presentation: even if all words are presented with sufficient clarity for successful recognition, those that are more difficult to hear are less likely to be recalled. Such a result demonstrates that memory processing depends on more than whether a word is simply “recognized” versus “not-recognized”. More surprising is that when a single item in a list of spoken words is acoustically masked, prior words that were heard with full clarity are also less likely to be recalled. To account for such a phenomenon, we developed the Linking by Active Maintenance Model (LAMM). This computational model of perception and encoding predicts that these effects are time dependent. Here we challenge our model by investigating whether and how the impact of acoustic masking on memory depends on presentation rate. We find that a slower presentation rate causes a more disruptive impact of stimulus degradation on prior, clearly heard words than does a fast rate. These results are unexpected according to prior theories of effortful listening, but we demonstrate that they can be accounted for by LAMM.

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Auditory steady state responses recorded in multitalker babble

Cited by 7 publications

References 65 publications

Concurrent measures of contralateral suppression of transient-evoked otoacoustic emissions and of auditory steady-state responses

Concurrent measures of contralateral suppression of transient-evoked otoacoustic emissions and of auditory steady-state responses

Sustained envelope periodicity representations are associated with speech-in-noise performance in difficult listening conditions for younger and older adults

Acoustic masking disrupts time-dependent mechanisms of memory encoding in word-list recall

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