2013
DOI: 10.4067/s0718-48162013000200011
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Desde la corteza auditiva a la cóclea: Progresos en el sistema eferente auditivo

Abstract: The auditory efferent system is composed by the olivocochlear fibers and descending projections that originate in the auditory cortex and end in the cochlea. The olivocochlear system is divided into a medial and lateral division, with fibers directed to the outer hair cells and to the auditory nerve fibers respectively. It is known that acetylcholine is the main neurotransmitter of the olivocochlear synapses and that outer hair cells and auditory nerve fibers have receptors to this molecule. The cortico-cochle… Show more

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Cited by 4 publications
(3 citation statements)
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“…It may be characterized by loss of ganglion neurons and cochlear hair cells during aging. 3,4 Hearing difficulties can hamper interaction with other people and safe orientation in the environment, thus complicating engagement in daily life situations in elderly populations. 5,6 The World Health Organization recommends treatment with hearing aid (HA) for problems associated with hearing loss.…”
Section: Introductionmentioning
confidence: 99%
“…It may be characterized by loss of ganglion neurons and cochlear hair cells during aging. 3,4 Hearing difficulties can hamper interaction with other people and safe orientation in the environment, thus complicating engagement in daily life situations in elderly populations. 5,6 The World Health Organization recommends treatment with hearing aid (HA) for problems associated with hearing loss.…”
Section: Introductionmentioning
confidence: 99%
“…La actividad de todas estas áreas en su conjunto, así como el nivel de comunicación entre ellas, es lo que genera la percepción auditiva. Por otro lado, el proceso perceptual no es unidireccional, sino que las áreas de procesamiento cerebral actúan sobre regiones subcorticales e incluso sobre la cóclea a través del sistema eferente auditivo [15][16][17] . Así, la percepción auditiva no surge de lo que ocurre en una región cerebral específica, sino de la actividad de esta red neuronal de percepción auditiva aferente y eferente 18 (Figuras 1, 2 y 3).…”
Section: Percepción Auditivaunclassified
“…Al deterioro de la audición relacionado con la adultez mayor se le conoce como presbiacusia, y no tiene una causa aparente conocida. Se caracteriza por presentar una progresiva pérdida de neuronas ganglionares y de células ciliadas cocleares relacionada con el envejecimiento (6,7) . Este tipo de pérdida auditiva neurosensorial conlleva problemas en la comprensión del habla a niveles confortables, especialmente en situaciones desfavorables, así como en la presencia de ruido ambiental y velocidad del habla aumentada, comprometiendo de este modo seriamente el proceso de comunicación verbal (8) .…”
Section: Introductionunclassified