Long latency auditory evoked potentials and object-related negativity based on harmonicity in hearing-impaired children

Mehrkian, Saeideh; Moossavi, Abdollah; Gohari, Nasrin; Nazari, Mohammad Ali; Bakhshi, Enayatollah; Alain, Claude

doi:10.1016/j.neures.2022.01.001

Cited by 4 publications

(2 citation statements)

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“…This was interpreted as suggesting greater neuronal activity associated with the perception of separate auditory objects in children than adults. In a recent follow-up to that study, the same team investigated the ORN of 6–12 year-olds with a moderate to severe congenital hearing loss (55–70 dB HL), who were regular hearing aid users (Mehrkian et al, 2022 ). Note that children with a hearing loss were tested unaided, but sounds were presented at higher sound pressure level than for age-matched children with normal hearing, thus aiming to equate sensation level across groups.…”

Section: Stream Segregationmentioning

confidence: 99%

Development of auditory scene analysis: a mini-review

Calcus

2024

Front. Hum. Neurosci.

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Most auditory environments contain multiple sound waves that are mixed before reaching the ears. In such situations, listeners must disentangle individual sounds from the mixture, performing the auditory scene analysis. Analyzing complex auditory scenes relies on listeners ability to segregate acoustic events into different streams, and to selectively attend to the stream of interest. Both segregation and selective attention are known to be challenging for adults with normal hearing, and seem to be even more difficult for children. Here, we review the recent literature on the development of auditory scene analysis, presenting behavioral and neurophysiological results. In short, cognitive and neural mechanisms supporting stream segregation are functional from birth but keep developing until adolescence. Similarly, from 6 months of age, infants can orient their attention toward a target in the presence of distractors. However, selective auditory attention in the presence of interfering streams only reaches maturity in late childhood at the earliest. Methodological limitations are discussed, and a new paradigm is proposed to clarify the relationship between auditory scene analysis and speech perception in noise throughout development.

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Section: Stream Segregationmentioning

confidence: 99%

Development of auditory scene analysis: a mini-review

Calcus

2024

Front. Hum. Neurosci.

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“…Mistuning harmonics is a behavioral [ 8 ] and electrophysiological [ 44 ] method of evaluating concurrent sound separation. It is assumed that when one of the harmonic components is mistuned by 3% of its harmonic value, it is heard as a separate tone from the complex tone.…”

Section: Training Programs Based On Cues and Factors Involved In Bott...mentioning

confidence: 99%

Training Programs for Improving Speech Perception in Noise: A Review

et al. 2023

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Understanding speech in the presence of noise is difficult and challenging, even for people with normal hearing. Accurate pitch perception, coding and decoding of temporal and intensity cues, and cognitive factors are involved in speech perception in noise (SPIN); disruption in any of these can be a barrier to SPIN. Because the physiological representations of sounds can be corrected by exercises, training methods for any impairment can be used to improve speech perception. This study describes the various types of bottom-up training methods: pitch training based on fundamental frequency (F0) and harmonics; spatial, temporal, and phoneme training; and top-down training methods, such as cognitive training of functional memory. This study also discusses music training that affects both bottom-up and top-down components and speech training in noise. Given the effectiveness of all these training methods, we recommend identifying the defects underlying SPIN disorders and selecting the best training approach.

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