Peripheral Hearing Loss

Speaks, Charles; Bauer, Karen; Carlstrom, Jane

doi:10.1044/jshd.4802.135

Cited by 6 publications

(2 citation statements)

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“…We propose one hypothesis for these findings. It has been suggested that brainstem processing is shaped by descending corticofugal “top-down” influences (Suga 2008) leading to the subcortical malleability of neural timing encoding (Tzounopoulos & Kraus 2009). Consistent with this view, previous studies measuring the frequency following response in a DL paradigm have shown that increased attentional control may modulate the ABR in humans (Galbraith et al 1998; Lehmann & Schönwiesner 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The ID for pure-tone thresholds accounted for almost 17% and 15% of the total variance of the magnitude of the REA for the nF and FA paradigms, respectively. It has been suggested that a substantial ID in audibility is likely to increase the asymmetry between ears for DL tasks (Speaks et al 1983;Musiek & Chermak 2015). To eliminate this potential effect, only older adults with bilateral normal hearing for their age (ISO 7029 2000) were selected.…”

Section: Audibility Effects On the Rea In DLmentioning

confidence: 99%

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Association Between the Right Ear Advantage in Dichotic Listening and Interaural Differences in Sensory Processing at Lower Levels of the Auditory System in Older Adults

2021

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Objective: Current evidence suggests that an enhanced right ear advantage (REA) in dichotic listening (DL) among older adults may originate from age-related structural changes in the corpus callosum and age-related decline in cognitive processes. Less is known about the effect of information processing at lower portions of the auditory system on DL performance. The present study investigates whether interaural differences (ID) in sensory processing at lower levels of the auditory system are associated with the magnitude of the REA in DL among older adults. Design: Sixty-eight older adults participated in the study. Participants were assessed with a DL test using nonforced (NF) and forced attention paradigms. Hearing sensitivity, transient-evoked otoacoustic emission (TEOAE), contralateral suppression of TEOAE, a proxy measure of medial olivocochlear activation, and auditory brainstem response to speech stimuli (speech-ABR) were tested in both ears separately. The ID in sensory processing at lower levels of the auditory system was derived by calculating the difference between the RE and LE for each auditory measure. Bivariate and multivariate regression models were performed. One multivariate model for each DL paradigm (NF and forced attention) was independently constructed. Measures of cognitive speed of processing and cognitive flexibility were accounted for in the regression models. Results: For both multivariate regression models, ID in pure-tone thresholds and ID in MOC suppression of TEOAE were significantly associated with the magnitude of the REA for DL among older adults. Cognitive measures of speed of processing and cognitive flexibility also contributed to the magnitude of the REA. Conclusion: These results suggest that ID in sensory processing at lower levels of the auditory system account, at least in part, for the increased magnitude of the REA in DL among older adults.

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Section: Discussionmentioning

confidence: 99%

Section: Audibility Effects On the Rea In DLmentioning

confidence: 99%

Association Between the Right Ear Advantage in Dichotic Listening and Interaural Differences in Sensory Processing at Lower Levels of the Auditory System in Older Adults

2021

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Presentation level determination for CV tokens using a computer-controlled adaptive procedure

Wall

Davidson

Fox

1989

Journal of Communication Disorders

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A primer on dichotic listening as a paradigm for the assessment of hemispheric asymmetry

Westerhausen

2019

Laterality: Asymmetries of Body, Brain and Cognition

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Dichotic listening is a well-established method to non-invasively assess hemispheric specialization for processing of speech and other auditory stimuli. However, almost six decades of research also have revealed a series of experimental variables with systematic modulatory effects on task performance. These variables are a source of systematic error variance in the data and, when uncontrolled, affect the reliability and validity of the obtained laterality measures. The present review provides a comprehensive overview of these modulatory variables and offers both guiding principles as well as concrete suggestions on how to account for possible confounding effects and avoid common pitfalls. The review additionally provides guidance for the evaluation of past studies and help for resolving inconsistencies in the available literature.

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Peripheral Hearing Loss

Cited by 6 publications

References 0 publications

Association Between the Right Ear Advantage in Dichotic Listening and Interaural Differences in Sensory Processing at Lower Levels of the Auditory System in Older Adults

Association Between the Right Ear Advantage in Dichotic Listening and Interaural Differences in Sensory Processing at Lower Levels of the Auditory System in Older Adults

Presentation level determination for CV tokens using a computer-controlled adaptive procedure

A primer on dichotic listening as a paradigm for the assessment of hemispheric asymmetry

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