The effects of electrode position and stimulus period on the hearing sensations in a multiple‐channel cochlear implant patient

1981 ◽  
Vol 70 (S1) ◽  
pp. S52-S53 ◽  
Author(s):  
Y. C. Tong ◽  
P. J. Blamey ◽  
R. C. Dowell ◽  
G. M. Clark
Keyword(s):  
Cochlear Implant ◽  
Electrode Position ◽  
Stimulus Period ◽  
Multiple Channel

Psychophysical and Speech Studies with an Electrotactile Speech Processor

1987 ◽  
Vol 96 (1_suppl) ◽  
pp. 87-89 ◽  
Author(s):  
P. J. Blamey
Keyword(s):  
Cochlear Implant ◽  
Pulse Rate ◽  
Pulse Width ◽  
Speech Comprehension ◽  
Electrode Position ◽  
Speech Discrimination ◽  
Formant Frequency ◽  
Speech Processor ◽  
Multiple Channel ◽  
Second Formant

A multiple-channel electrotactile speech processor worn on the fingers of one hand has been constructed. This processor implements a speech-coding strategy that presents the second formant frequency by electrode position, fundamental frequency by electrical pulse rate, and amplitude envelope by pulse width. This strategy is similar to the one used by the Nucleus cochlear implant. Psychophysical tests with normally hearing and profoundly deaf subjects have measured the discrimination of stimuli differing in pulse rate, electrode, or pulse width. The levels of performance were comparable to those for cochlear implant patients except for pulse rate discrimination. Three untrained normally hearing adults using electrotactile stimulation without hearing or lipreading scored significantly better than chance for a range of two alternative forced-choice speech discrimination tasks. Provided that subjects can learn to associate linguistically meaningful concepts with tactile sensations, an improved level of speech comprehension may be achieved when the electrotactile speech processor is used together with lipreading.

Telephone use by a multi-channel cochlear implant patient

1985 ◽  
Vol 99 (3) ◽  
pp. 231-238 ◽  
Author(s):  
A. M. Brown ◽  
G. M. Clark ◽  
R. C. Dowell ◽  
L. F. A. Martin ◽  
P. M. Seligman
Keyword(s):  
Cochlear Implant ◽  
Multiple Channel ◽  
Open Set

AbstractA totally deaf with a multiple-channel cochler prosthesis obtained open-set speech discrimation using the telephone. CID Everyday Sentences were presented by telephone to the patient. Who repeated an average of 21 percent when a repeat of the sentences was permitted. This result is consistent with the patient's reports of telephone usage.

Diversity in Cochlear Morphology and Its Influence on Cochlear Implant Electrode Position

2014 ◽  
Vol 35 (1) ◽  
pp. e9-e20 ◽  
Author(s):  
Kim S. van der Marel ◽  
Jeroen J. Briaire ◽  
Ron Wolterbeek ◽  
Jorien Snel-Bongers ◽  
Berit M. Verbist ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Electrode Position ◽  
Cochlear Morphology

A Multiple-Channel Cochlear Implant and Wearable Speech-Processor:An Audiological Evaluation

1981 ◽  
Vol 92 (1-6) ◽  
pp. 193-198 ◽  
Author(s):  
Y. C. Tong ◽  
G. M. Clark ◽  
R. C. Dowell ◽  
L. F. A. Martin ◽  
P. M. Seligman ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Multiple Channel

Psychophysical studies for two multiple‐channel cochlear implant patients

1982 ◽  
Vol 71 (1) ◽  
pp. 153-160 ◽  
Author(s):  
Y. C. Tong ◽  
G. M. Clark ◽  
P. J. Blamey ◽  
P. A. Busby ◽  
R. C. Dowell
Keyword(s):  
Cochlear Implant ◽  
Multiple Channel ◽  
Psychophysical Studies

Rotational tomography in cochlear implant patients: a new tool for quality control of the electrode position

2004 ◽  
Vol 5 (sup1) ◽  
pp. 147-149 ◽  
Author(s):  
A Aschendorff ◽  
R Kubalek ◽  
A Bink ◽  
FE Zanella ◽  
A Hochmuth ◽  
...  
Keyword(s):  
Quality Control ◽  
Cochlear Implant ◽  
Electrode Position
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