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Auditory Development

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Auditory development refers to the process by which the auditory system matures, encompassing the physiological, perceptual, and cognitive changes that occur from prenatal stages through early childhood, enabling the ability to perceive, process, and interpret sound.
lightbulbAbout this topic
Auditory development refers to the process by which the auditory system matures, encompassing the physiological, perceptual, and cognitive changes that occur from prenatal stages through early childhood, enabling the ability to perceive, process, and interpret sound.

Key research themes

1. How does early auditory perceptual and cortical maturation influence subsequent language development in infants?

This research area investigates the developmental progression of auditory system maturation in infancy, including cortical auditory responses, auditory discrimination, and audiovisual speech integration, and how these early neural and perceptual signatures predict or facilitate later language acquisition. Understanding these relationships matters because early auditory processing is foundational to speech perception and word learning, and disruptions or delays in auditory system maturation can compromise language outcomes.

Key finding: Using a child-optimized whole-head MEG system (Artemis 123), the study demonstrated age-dependent decreases in latency of left and right auditory cortical responses across infancy and early childhood, validating this... Read more
Key finding: Behavioral speech discrimination assessed via Conditioned Head Turn at 9 months significantly predicted expressive and receptive language abilities at 30 months in both children with normal hearing (CNH) and children who are... Read more
Key finding: Longitudinal ERP studies showed that the neural networks in the fronto-temporal regions supporting audiovisual speech integration undergo significant functional maturation between 5 and 10 months of age. Superior temporal... Read more
Key finding: Longitudinal cortical auditory evoked potential (CAEP) analyses in 1 to 12-month-old infants found significant auditory pathway maturation in both at-risk and non-risk infants, as shown by decreased latencies of P1 and N1... Read more
Key finding: In a large cohort of children who are hard of hearing (CHH) aged 12 months to 9 years, variability in early aided audibility and hearing aid use correlated significantly with parent-reported auditory skill development and... Read more

2. What are the neural mechanisms and plasticity processes underlying auditory circuit development, experience-dependent changes, and sensory integration?

This theme focuses on the neurobiological substrates of auditory pathway development, including the role of genetic factors, sensory experience, and cortical-thalamic interactions in shaping auditory circuit organization and functional plasticity. It also addresses how multisensory integration capabilities develop and adapt, covering both normative mechanisms and alterations caused by sensory deprivation or asymmetric hearing loss. Insights here are crucial for understanding critical periods for auditory function and for guiding interventions in hearing impairments.

Key finding: Research in ferret models highlighted the crucial influence of sensory experience during postnatal development on shaping auditory cortical circuits and sound localization abilities. Corticofugal descending pathways modulate... Read more
Key finding: Animal models and human imaging studies consistently showed that early single-sided deafness induces an 'aural preference syndrome,' where auditory pathways reorganize in favor of the better-hearing ear, diminishing... Read more
Key finding: Structural equation modeling revealed that paternal reading and musical traits influence infants’ early auditory processing and later phonological awareness skills, mediated partly by early neural auditory phenotypes and home... Read more
Key finding: Auditory perceptual learning involves task-specific plasticity mechanisms in distributed circuits integrating auditory sensory input with attention and reward, with early transient expansions in cortical representational area... Read more
Key finding: Longitudinal CAEP monitoring in children implanted before 3.5 years showed normalized P1 latencies within six months post-implantation, indicating restored auditory cortex maturation. Early cochlear implantation capitalizes... Read more

3. How do asymmetric and unilateral hearing loss affect auditory development, selective attention, and language outcomes in childhood?

This research theme examines the clinical and neurodevelopmental consequences of unilateral or asymmetric hearing loss in children, detailing how such auditory deprivation affects binaural processing, selective attention, speech perception in noisy environments, cortical representations, and language acquisition. It also explores intervention timing and efficacy for hearing rehabilitation devices. The significance lies in optimizing management strategies to mitigate the amplified developmental risks in children with asymmetric hearing deficits.

Key finding: Comprehensive reviews and cohort studies demonstrate that children with permanent unilateral hearing loss face increased risks for delays in speech, language, cognitive development, and quality of life, paralleling... Read more
Key finding: Single-sided deafness in early childhood induces a central auditory reorganization favoring the intact ear (aural preference syndrome), with reduced functional representation of the deaf ear. Delayed amplification or cochlear... Read more
Key finding: Psychophysical measurements in 4-11-year-old children reveal that immature auditory selective attention—the ability to focus on task-relevant spectral channels and ignore irrelevant noise—explains children's markedly poorer... Read more
Key finding: Children with hearing loss exhibited significantly reduced generalization of novel nouns by shape similarity compared to both age- and vocabulary-matched typically hearing peers. Vocabulary had a disproportionately stronger... Read more
Key finding: Variability in aided audibility and consistent hearing aid use among children hard of hearing correlates significantly with parent-reported developmental auditory skills and objective speech recognition performance. The... Read more

All papers in Auditory Development

Much research has explored developing sound representations in language, but less work addresses developing representations of other sound patterns. This study examined preschool children's musical representations using two different... more
How does auditory processing change over development? This study assessed preschoolers' and adults' sensitivity to pitch contour, pitch height, and timbre in an association-memory paradigm, with both explicit (overt recognition) and... more
Neuronal diversity in the cochlea is largely determined by ion channels. Among voltage‐gated channels, hyperpolarization‐activated cyclic nucleotide‐gated (HCN) channels open with hyperpolarization and depolarize the cell until the... more
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Objective: The aim of this study was twofold: (1) investigating the development of auditory processing abilities, and (2) exploring the possibility of the clinical application of the test battery used in the study. Design: The proposed... more
Objective: The aim of this study was twofold: (1) investigating the development of auditory processing abilities, and (2) exploring the possibility of the clinical application of the test battery used in the study. Design: The proposed... more
Magnetic brain responses to speech sounds were measured in 10 healthy neonates. The stimulation consisted of a frequent vowel sound [a:] with a steady pitch contour, which was occasionally replaced by the vowel [i:] with a steady pitch,... more
Objective: The aim of this study was twofold: (1) investigating the development of auditory processing abilities, and (2) exploring the possibility of the clinical application of the test battery used in the study. Design: The proposed... more
In human neonates, orienting behavior in response to an off-midline sound source disappears around the first postnatal month, only to re-emerge at ~4 months. To date, it is unclear whether sound localization processes continue to operate... more
Assessing language development in the first postnatal year is difficult, as receptive and expressive skills are rudimentary. Although outward manifestations of change are limited, the auditory language system is thought to undergo... more
Previous studies have evaluated representation of the fundamental frequency (F 0 ) in the frequency following response (FFR) of infants, but the development of other aspects of the FFR, such as timing and harmonics, has not yet been... more
In human neonates, orienting behavior in response to an off-midline sound source disappears around the first postnatal month, only to re-emerge at ~4 months. To date, it is unclear whether sound localization processes continue to operate... more
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