Graeme Clark Collection

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Author: Clark, Graeme × Author: Rickards, Field × Start date: 1970 × Subject: cochlear implants ×

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Now showing 1 - 5 of 5
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    Results for two children using a multiple-electrode intracochlear implant
    Busby, P. A. ; Tong, Yit C. ; Roberts, S. A. ; Altidis, P. M. ; Dettman, S. J. ; Blamey, Peter J. ; Clark, Graeme M. ; Watson, R. K. ; Rickards, Field W. ( 1989)
    Abstract not available due to copyright.
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    The clinical assessment of cochlear implant patients
    Clark, Graeme M. ; O'Loughlin, J. O. ; Rickards, Field W. ; Tong, Y. C. ; Williams, A. J. (Cambridge University Press, 1977)
    This paper is a discussion of the clinical assessment routine adopted following experience gained over the last three years from evaluating 27 patients with severe sensori-neural deafness to determine whether they are suitable for the cochlear implantation of a multiple-electrode receiving and stimulating device developed jointly in the Departments of Otolaryngology and Electrical Engineering at the University of Melbourne.
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    Pre-operative hearing assessment in young cochlear implant candidates
    RANCE, GARY ; Dowell, Richard C. ; Rickards, Field W. ; Clark, Graeme M. ( 2000)
    Early implantation of congenitally deaf candidates is now a goal of most cochlear implant clinics. This objective can only be achieved through the use of audiological tests that are able to identify and quantify hearing loss in infancy. Behavioural conditioning techniques provide the most accurate indication of hearing acuity in older subjects, but these procedures are unreliable in young (6 months) or developmentally delayed children. This paper investigates the degree of accuracy with which two electrophysiological test techniques (click-ABR & steady-state evoked potential [SSEPD can be used to assess auditory function in infants with significant hearing loss. ABR and SSEP findings from 108 children were compared with hearing levels obtained behaviourally.
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    Steady-state evoked potentials (SSEPS): a new tool for the accurate assessment of hearing in cochlear implant candidates [Abstract]
    Burton, Martin J. ; Rance, G. ; Rickards, Field W. ; Cohen, L. T. ; Clark, Graeme M. ( 1992)
    Determining hearing thresholds is crucial in assessing cochlear implant candidates; never more so than in young children unable to undergo behavioural audiometry. In these children an objective measure of hearing is desirable. Steady-state evoked potentials (SSEPs) are potentials recorded from the scalp and simultaneously analysed. Stimuli ore amplitude and frequency modulated pure tones. A system has been developed which allows the presence of such a response to be automatically detected and the technique thus permits an objective, frequent specific assessment of hearing threshold to be mode in sleeping or awake subjects (1). This paper investigates the use of SSEPs in determining hearing thresholds in young profoundly deaf children who are candidates for cochlear implants. Responses in such patients are compared with those obtained in normal adults, neonates and experimental animals. Results indicate that the SSE? can provide a consistent and reliable measure of threshold and the technique appears to have a number of advantages over the auditory brainstem response: automated response detection removes the subjective element of threshold determination, higher levels of stimulus presentation are possible, low frequency threshold determination is more accurate and the testing procedure IS quicker.
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    Speech perception, production and language results in a group of children using the 22-electrode cochlear implant
    Busby, P. A. ; Brown, A. M. ; DOWELL, RICHARD ; Rickards, Field W. ; Dawson, Pam W. ; Blamey, Peter J. ; Rowland, L.C. ; Dettman, Shani J. ; Altidis, P. M. ; Clark, Graeme M. ( 1989)
    Paper presented at the 118th Meeting of the Acoustical Society of America