Graeme Clark Collection

Permanent URI for this collection

http://hdl.handle.net/11343/375

Filters

1981 2
Reset filters

Settings
Statistics
Citations
End date: 1981 × Start date: 1981 × Type: Journal Article × Subject: cochlear implant ×

Search Results

Now showing 1 - 2 of 2
  • Item
    Thumbnail Image
    A multiple-channel cochlear implant: an evaluation using open-set CID sentences
    Clark, Graeme M. ; Tong, Yit Chow ; Martin, Lois F. A. ( 1981)
    A multiple-channel cochlear implant and speech processor have been used in two postlingually deaf adult patients with a total hearing loss, to enable them to perceive varying degrees of running speech. The results have been confirmed with open-set CID everyday sentence tests. Using the implant alone, the patients obtained 8% and 14% scores with pre-recorded material, and 34% and 36% scores for "live" presentations. This was equivalent to the perception of 35% of connected discourse. When the implant was used in conjunction with lipreading, improvements of 188% and 386% were obtained over lipreading alone, and the scores were 68% and 98% which were equivalent to the perception of 60% and 95% of connected discourse.
  • Item
    Thumbnail Image
    A multiple-channel cochlear implant and wearable speech-processor: an audiological evaluation
    Tong, Y. C. ; Clark, Graeme M. ; Dowell, R. C. ; Martin, L. F. ; Seligman, P. M. ; Patrick, J. F. ( 1981)
    Standard audiological tests were administered to a totally deft multiple-channel cochlear implant patient with a wearable speech-processor in a monitored sound field under the following conditions: a wearable unit activated alone (WA), lipreading with the wearable unit off (LA), and wearable unit activated in combination with lipreading (WL). Thresholds obtained for narrow-band noise signals indicated that the wearable unit allowed the patient to detect a variety of sounds at different frequencies. The results obtained in closed-set word tests and open-set word and sentence tests showed significant improvements in word and sentence scores from LA to WL. In the open-se (C.I.D) sentence tests, the patient scored 22% for LA and 76% for WL. The WL score of 76% correlates with a satisfactory performance in understanding connected speech. The patient also scored 30% correct in a test involving the recognition of environmental sounds.