Show simple item record

dc.contributor.authorDowell, R. C.en_US
dc.contributor.authorTong, Yit. C.en_US
dc.contributor.authorBlamey, P. J.en_US
dc.contributor.authorClark, Graeme M.en_US
dc.date.accessioned2014-05-21T19:50:07Z
dc.date.available2014-05-21T19:50:07Z
dc.date.issued1985en_US
dc.identifier881670766en_US
dc.identifier.citationDowell, R. C., Tong, Y. C., Blamey, P. J., & Clark, G. M. (1985). Psychophysics of multiple-channel stimulation. In Cochlear implants (10th Anniversary Conference on Cochlear Implants), San Francisco.en_US
dc.identifier.urihttp://hdl.handle.net/11343/26815
dc.description.abstractEight patients implanted with multiple-channel cochlear prostheses have displayed good discrimination of sound sensations elicited at different sites within the cochlea. All patients rank the sensations from "sharp" to "dull" in an order which corresponds with basal to apical position in the cochlea. Detailed psychophysical studies have been carried out on two patients. These showed that discrimination of rate of (pulsatile) stimulation is good for frequencies up to 300 Hz and falls off sharply for frequencies above this. Electrode transitions (changes in position along the cochlea) are well discriminated for fast changes (25 msec), whereas rate transitions are not well discriminated for changes faster than 100 msec. From these results a speech processing strategy was formulated where second formant information is mapped to position in the cochlea and fundamental frequency mapped to rate of stimulation. Vowel and consonant confusion studies show consistent results for all patients using this processing strategy. A study involving two electrode stimuli demonstrated the possibility of presenting first formant information in addition to the second formant and fundamental frequency.en_US
dc.publisherRaven Pressen_US
dc.relation.ispartofScientific publications, vol.3, 1984-1986, no.177en_US
dc.subjectmultiple-channel cochlear prosthesesen_US
dc.subjectotolaryngologyen_US
dc.subjectspeech processing strategyen_US
dc.titlePsychophysics of multiple-channel stimulationen_US
dc.typeConference Paperen_US
melbourne.source.titleCochlear implants (10th Anniversary Conference on Cochlear Implants)en_US
melbourne.source.month22-24 Juneen_US
melbourne.source.pages283-290en_US
melbourne.source.locationconferenceSan Franciscoen_US
melbourne.source.editorSchindler, R. A.en_US
melbourne.source.editorMerzenich, M. Men_US
dc.description.sourcedateconference22-24 June 1983en_US
melbourne.elementsidNA
melbourne.contributor.authorClark, Graeme
melbourne.contributor.authorDowell, Richard
melbourne.contributor.authorBlamey, Peter
melbourne.accessrightsOpen Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record