Afferent loss, GABA, and Central Gain in older adults: Associations with speech recognition in noise

KC Harris, JW Dias, CM McClaskey… - Journal of …, 2022 - Soc Neuroscience
Deficits in auditory nerve (AN) function for older adults reduce afferent input to the cortex.
The extent to which the cortex in older adults adapts to this loss of afferent input and the …

Processing of degraded speech in brain disorders

J Jiang, E Benhamou, S Waters, JCS Johnson… - Brain Sciences, 2021 - mdpi.com
The speech we hear every day is typically “degraded” by competing sounds and the
idiosyncratic vocal characteristics of individual speakers. While the comprehension of …

The frequency-following response to assess the neural representation of spectral speech cues in older adults

L Chauvette, P Fournier, A Sharp - Hearing Research, 2022 - Elsevier
Older adults often present difficulties understanding speech that cannot be explained by age-
related changes in sound audibility. Psychoacoustic and electrophysiologic studies have …

Hearing aid delay effects on neural phase locking

M Zhou, R Soleimanpour, A Mahajan… - Ear and Hearing, 2024 - journals.lww.com
Objectives: This study was designed to examine the effects of hearing aid delay on the
neural representation of the temporal envelope. It was hypothesized that the comb-filter …

Peripheral deficits and phase-locking declines in aging adults

S Anderson, R Bieber, A Schloss - Hearing research, 2021 - Elsevier
Age-related difficulties in speech understanding may arise from a decrease in the neural
representation of speech sounds. A loss of outer hair cells or decrease in auditory nerve …

Effect of spectral degradation on speech intelligibility and cortical representation

HJ Choi, JS Kyong, JH Won, HJ Shim - Frontiers in Neuroscience, 2024 - frontiersin.org
Noise-vocoded speech has long been used to investigate how acoustic cues affect speech
understanding. Studies indicate that reducing the number of spectral channel bands …

Corticothalamic projections deliver enhanced responses to medial geniculate body as a function of the temporal reliability of the stimulus

SP Kommajosyula, EL Bartlett, R Cai… - The Journal of …, 2021 - Wiley Online Library
Ageing and challenging signal‐in‐noise conditions are known to engage the use of cortical
resources to help maintain speech understanding. Extensive corticothalamic projections are …

Vestibulo-spatial navigation: pathways and sense of direction

A Zachou, AM Bronstein - Journal of Neurophysiology, 2023 - journals.physiology.org
Aims of the present article are: 1) assessing vestibular contribution to spatial navigation, 2)
exploring how age, global positioning systems (GPS) use, and vestibular navigation …

Effects of temporal envelope cutoff frequency, number of channels, and carrier type on brainstem neural representation of pitch in vocoded speech

S Ananthakrishnan, X Luo - Journal of Speech, Language, and Hearing …, 2022 - ASHA
Purpose: The objective of this study was to determine if and how the subcortical neural
representation of pitch cues in listeners with normal hearing is affected by systematic …

Intracranial electrophysiology of spectrally degraded speech in the human cortex

KV Nourski, M Steinschneider, AE Rhone… - Frontiers in human …, 2024 - frontiersin.org
Introduction Cochlear implants (CIs) are the treatment of choice for severe to profound
hearing loss. Variability in CI outcomes remains despite advances in technology and is …