Cited by 369Hearing, Cochlea, Tinnitus, GeneticsHearing Loss and RehabilitationNeuroscience and Music Perception

Plastic changes in the central auditory system after hearing loss, restoration of function, and during learning.

Syka, Josef·2002·Physiological Reviews

Abstract

Traditionally the auditory system was considered a hard-wired sensory system; this view has been challenged in recent years in light of the plasticity of other sensory systems, particularly the visual and somatosensory systems. Practical experience in clinical audiology together with the use of prosthetic devices, such as cochlear implants, contributed significantly to the present view on the plasticity of the central auditory system, which was originally based on data obtained in animal experiments. The loss of auditory receptors, the hair cells, results in profound changes in the structure and function of the central auditory system, typically demonstrated by a reorganization of the projection maps in the auditory cortex. These plastic changes occur not only as a consequence of mechanical lesions of the cochlea or biochemical lesions of the hair cells by ototoxic drugs, but also as a consequence of the loss of hair cells in connection with aging or noise exposure. In light of the aging world population and the increasing amount of noise in the modern world, understanding the plasticity of the central auditory system has its practical consequences and urgency. In most of these situations, a common denominator of central plastic changes is a deterioration of inhibition in the subcortical auditory nuclei and the auditory cortex. In addition to the processes that are elicited by decreased or lost receptor function, the function of nerve cells in the adult central auditory system may dynamically change in the process of learning. A better understanding of the plastic changes in the central auditory system after sensory deafferentation, sensory stimulation, and learning may contribute significantly to improvement in the rehabilitation of damaged or lost auditory function and consequently to improved speech processing and production.

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Crossref · 10.1152/physrev.00002.2002

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Authors
Syka, J.
Affiliations
Czech Academy of Sciences (CZ)
Corresponding author
Syka, Josef
Venue
Physiological Reviews
Published
2002-01-07
Volume
82
Issue
3
Pages
601-636
ISSN
  • 0031-9333 (ISSN-L)
  • 1522-1210
OpenAlex
W2116004651
Cited by
369
References
398
Citations by year
2026: 1 · 2025: 6 · 2024: 16 · 2023: 7 · 2022: 10 · 2021: 15 · 2020: 19 · 2019: 18 · 2018: 15 · 2017: 15 · 2016: 17 · 2015: 25 · 2014: 22 · 2013: 14 · 2012: 17
FWCI
1.33
Type
journal article
Language
en
Open access
closed
Locations
  • Physiological Reviews (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Sensory Systems › Hearing, Cochlea, Tinnitus, Genetics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hearing Loss and Rehabilitation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neuroscience and Music Perception
Keywords
hearing loss, auditory cortex, cochlear implants, sensory deafferentation, auditory cortex reorganization, noise-induced hearing loss, auditory learning, hearing rehabilitation, speech processing, cochlear hair cell loss, ototoxic drugs
MeSH terms
Animals, Auditory Cortex, Hearing Loss, Sensorineural, Humans, Learning, Neuronal Plasticity, Recovery of Function

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