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Review
. 2002:63:183-93.
doi: 10.1093/bmb/63.1.183.

Cochlear implants and brain stem implants

Richard T Ramsden  1
Affiliations
Review

Cochlear implants and brain stem implants

Richard T Ramsden. Br Med Bull. 2002.

Abstract

This chapter describes the development of two implantable prosthetic neurostimulators which, in the last 20 years, have revolutionised the management of severe-to-profound sensorineural deafness. We have witnessed their rapid evolution from the realms of esoteric laboratory abstraction, with many critics and little perceived clinical use, to a routine treatment which is safe, effective and, indeed, cost effective. It is one of the great triumphs of biomedical and surgical collaboration, and is without any doubt the greatest ever advance in the treatment of deafness.

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Figures

Figure 1
Figure 1
Schematic representations of the cochleotopic organisation of the inferior colliculus (middle) and primary auditory cortex (right) in normal hearing animals (top row), congenitally deaf unstimulated animals (second row), neonatally deafened unstimulated animals (third row) and chronically-deaf chronically-stimulated animals (bottom row). The different results obtained with different recording techniques (optical imaging or electrophysiological) are illustrated.
See this image and copyright information in PMC

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