ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2017
Magnified Neural Envelope Coding Predicts Deficits in Speech Perception in Noise.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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Who cites it
30 citing papers in PubMed.
- Article
- Parallel Age-Related Cochlear Neural Degeneration and Cortical Gain Adaptation in Normal-Hearing Humans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- Speech-in-noise discriminability after noise exposure: Insights from a gerbil model of acoustic trauma.PloS one · 2025Article
- Relating monaural and binaural measures of modulation sensitivity in listeners with and without hearing loss.The Journal of the Acoustical Society of America · 2024Article
- Article
- Neural Fluctuation Contrast as a Code for Complex Sounds: The Role and Control of Peripheral Nonlinearities.Hearing research · 2024Review
- Neural hyperactivity and altered envelope encoding in the central auditory system: Changes with advanced age and hearing loss.Hearing research · 2024Review
- Underlying neural mechanisms of degraded speech intelligibility following noise-induced hearing loss: The importance of distorted tonotopy.Hearing research · 2022Review
- Age-related deficits in dip-listening evident for isolated sentences but not for spoken stories.Scientific reports · 2022Article
- Article
- Age-related hearing loss is associated with alterations in temporal envelope processing in different neural generators along the auditory pathway.Frontiers in neurology · 2022Article
- Hearing loss and brain plasticity: the hyperactivity phenomenon.Brain structure & function · 2021Review
- Cortical Responses to the Amplitude Envelopes of Sounds Change with Age.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- Stimulus-evoked phase-locked activity along the human auditory pathway strongly varies across individuals.Scientific reports · 2021Article
- Inaccurate cortical tracking of speech in adults with impaired speech perception in noise.Brain communications · 2021Article
- Effects of Hearing Aid Noise Reduction on Early and Late Cortical Representations of Competing Talkers in Noise.Frontiers in neuroscience · 2021Article
- Effects of Age on Cortical Tracking of Word-Level Features of Continuous Competing Speech.Frontiers in neuroscience · 2021Article
- Effects of Sensorineural Hearing Loss on Cortical Synchronization to Competing Speech during Selective Attention.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Neural Generators Underlying Temporal Envelope Processing Show Altered Responses and Hemispheric Asymmetry Across Age.Frontiers in aging neuroscience · 2020Article
- Evidence for enhanced neural tracking of the speech envelope underlying age-related speech-in-noise difficulties.Journal of neurophysiology · 2019Article
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Authors and funding
4 authors.
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Abstract
Verbal communication in noisy backgrounds is challenging. Understanding speech in background noise that fluctuates in intensity over time is particularly difficult for hearing-impaired listeners with a sensorineural hearing loss (SNHL). The reduction in fast-acting cochlear compression associated with SNHL exaggerates the perceived fluctuations in intensity in amplitude-modulated sounds. SNHL-induced changes in the coding of amplitude-modulated sounds may have a detrimental effect on the ability of SNHL listeners to understand speech in the presence of modulated background noise. To date, direct evidence for a link between magnified envelope coding and deficits in speech identification in modulated noise has been absent. Here, magnetoencephalography was used to quantify the effects of SNHL on phase locking to the temporal envelope of modulated noise (envelope coding) in human auditory cortex. Our results show that SNHL enhances the amplitude of envelope coding in posteromedial auditory cortex, whereas it enhances the fidelity of envelope coding in posteromedial and posterolateral auditory cortex. This dissociation was more evident in the right hemisphere, demonstrating functional lateralization in enhanced envelope coding in SNHL listeners. However, enhanced envelope coding was not perceptually beneficial. Our results also show that both hearing thresholds and, to a lesser extent, magnified cortical envelope coding in left posteromedial auditory cortex predict speech identification in modulated background noise. We propose a framework in which magnified envelope coding in posteromedial auditory cortex disrupts the segregation of speech from background noise, leading to deficits in speech perception in modulated background noise.
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