Cochlear implants and spoken language processing abilities: review and assessment of the literature.
Cochlear implants (CIs) process sounds electronically and then transmit electric stimulation to the cochlea of individuals with sensorineural deafness, restoring some sensation of auditory perception. Many congenitally deaf CI recipients achieve a high degree of accuracy in speech perception and develop near-normal language skills. Post-lingually deafened implant recipients often regain the ability to understand and use spoken language with or without the aid of visual input (i.e. lip reading). However, there is wide variation in individual outcomes following cochlear implantation, and some CI recipients never develop useable speech and oral language skills. The causes of this enormous variation in outcomes are only partly understood at the present time. The variables most strongly associated with language outcomes are age at implantation and mode of communication in rehabilitation. Thus, some of the more important factors determining success of cochlear implantation are broadly related to neural plasticity that appears to be transiently present in deaf individuals. In this article we review the expected outcomes of cochlear implantation, potential predictors of those outcomes, the basic science regarding critical and sensitive periods, and several new research directions in the field of cochlear implantation.
Peterson
Nathaniel R
NR
Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5119, USA. narpeter@iupui.edu
Pisoni
David B
DB
Miyamoto
Richard T
RT
D000161:Acoustic Stimulation; D001306:Auditory Pathways / Q000033:anatomy & histology / Q000502:physiology; D003054:Cochlear Implants; D006801:Humans; D019986:Persons with Hearing Disabilities / Q000523:psychology / Q000534:rehabilitation*; D013060:Speech; D013067:Speech Perception / Q000502:physiology*
Restor Neurol Neurosci. 2007;25(3-4):381-90
17943013
Hear Res. 1999 Feb;128(1-2):147-65
10082295
Ear Hear. 2004 Apr;25(2):173-85
15064662
Neuron. 2001 Jun;30(3):657-63
11430800
Dev Psychobiol. 2005 Apr;46(3):252-61
15772969
Ann Otol Rhinol Laryngol Suppl. 2002 May;189:69-73
12018353
Acta Otolaryngol. 2003 Jan;123(2):249-52
12701751
N Engl J Med. 2003 Jul 31;349(5):421-3
12890839
Cereb Cortex. 2007 Apr;17(4):909-17
16731883
Otol Neurotol. 2007 Aug;28(5):629-36
17667771
Ear Hear. 2005 Apr;26(2):149-64
15809542
J Acoust Soc Am. 2008 Feb;123(2):1126-39
18247913
Acta Otolaryngol. 2003 Jan;123(2):241-4
12701749
Otol Neurotol. 2002 May;23(3):333-40
11981391
Laryngoscope. 2004 Oct;114(10):1714-9
15454759
Ear Hear. 2007 Apr;28(2 Suppl):38S-41S
17496643
Int J Pediatr Otorhinolaryngol. 1999 Oct 5;49 Suppl 1:S193-7
10577804
Ear Hear. 2005 Feb;26(1):48-61
15692304
Laryngoscope. 2004 Sep;114(9):1536-40
15475777
J Speech Hear Disord. 1990 May;55(2):327-37
2329795
Nature. 2001 Jan 11;409(6817):149-50
11196628
Int J Pediatr Otorhinolaryngol. 1997 Aug 20;41(2):121-31
9306169
Arch Pediatr Adolesc Med. 2008 Mar;162(3):269-76
18316665
Audiol Neurootol. 2001 Nov-Dec;6(6):363-80
11847464
Scand Audiol Suppl. 1999;51:13-22
10803910
Int J Audiol. 2007 Sep;46(9):494-9
17828665
J Acoust Soc Am. 1978 Apr;63(4):1186-92
649877
Ann Otol Rhinol Laryngol Suppl. 2000 Dec;185:44-6
11140999
Science. 1980 Jan 11;207(4427):203-5
7350657
Ear Hear. 2008 Oct;29(5):775-90
18596641
J Gen Psychol. 2004 Jul;131(3):268-302
15248594
NIH Consens Statement. 1995 May 15-17;13(2):1-30
8595436
Trends Amplif. 2004;8(2):49-82
15497033
Neuroreport. 1996 Dec 20;8(1):61-5
9051753
Hear Res. 2005 May;203(1-2):134-43
15855038
Laryngoscope. 2007 Nov;117(11):2017-25
17828054
Laryngoscope. 2005 Sep;115(9):1603-11
16148703
Ear Hear. 2003 Feb;24(1 Suppl):106S-20S
12612485
Audiol Neurootol. 2006;11(1):38-52
16219993
Neuron. 2003 Jan 9;37(1):159-70
12526781
Laryngoscope. 1999 Apr;109(4):595-9
10201747
Brain Lang. 1997 Oct 1;59(3):494-522
9299074
Laryngoscope. 2005 Aug;115(8):1376-80
16094108
Brain Res. 2008 Nov 6;1239:56-65
18775684
Neuron. 1999 Oct;24(2):292-3
10571223
Am J Otol. 1999 Mar;20(2):198-204
10100523
Ann Otol Rhinol Laryngol. 1991 Oct;100(10):807-11
1952646
J Rehabil Res Dev. 2008;45(5):779-89
18816426
J Commun Disord. 2007 Jul-Aug;40(4):284-94
17433357
Ear Hear. 2007 Jun;28(3):302-19
17485980
Audiol Neurootol. 2006;11 Suppl 1:12-5
17063005
Laryngoscope. 2005 Mar;115(3):445-9
15744155
Proc Natl Acad Sci U S A. 2007 Jul 24;104(30):12530-5
17630288
Ear Hear. 2008 Aug;29(4):492-511
18382374
Int J Audiol. 2007 Sep;46(9):479-93
17828664