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January 1993

Combined Electrical and Acoustical Stimulation Using a Bimodal Prosthesis

Author Affiliations

From the Human Communication Research Centre, Australian Bionic Ear and Hearing Research Institute, University of Melbourne (Australia) (Drs Dooley, Blamey, and Clark and Mr Alcantara); Cochlear Proprietary Ltd, Sydney, Australia (Dr Seligman); Denver (Colo) Ear Institute, (Dr Shallop); and the Cochlear Corp, Denver, Colo (Mr Heller and Mss Arndt and Menapace).

Arch Otolaryngol Head Neck Surg. 1993;119(1):55-60. doi:10.1001/archotol.1993.01880130057007

• A new device incorporating a cochlear implant speech processor and a speech-processing hearing aid for the unimplanted ear has been designed and tested with four severely hearing-impaired patients. The aim of the device is to provide a more acceptable and effective combination of electrical and acoustic signals to the two ears. When used monaurally, and binaurally in conjunction with the cochlear implant, the speech-processing hearing aid mean scores for open-set sentences, words, and consonants were as good as or better than the mean scores for the patients' own conventional hearing aids. Some patients improved much more than did others. Although not conclusive, these results are encouraging, especially as they were achieved with a laboratory prototype that did not allow the patients to become accustomed to the processor in everyday situations.

(Arch Otolaryngol Head Neck Surg. 1993;119:55-60)