| EPSRC Reference: |
GR/T10916/01 |
| Title: |
Patient Testing fo Novel Cochlear Implant Coding Strategy with Signal-dependant-noise |
| Principal Investigator: |
Stocks, Professor NG |
| Other Investigators: |
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| Department: |
Sch of Engineering |
| Organisation: |
University of Warwick |
| Scheme: |
Follow on Fund (Pre-FEC) |
| Starts: |
15 June 2004 |
Ends: |
14 April 2005 |
Value (£): |
35,244
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| EPSRC Research Topic Classifications: |
| Biomedical neuroscience |
Digital Signal Processing |
| Med.Instrument.Device& Equip. |
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Summary on Grant Application Form |
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The neural response produced by acoustic stimulation in the normal ear has a random element (noise) that may be an essential part of normal hearing. We have previously proposed that this noise should be incorporated into cochlear implants, which are devices used to restore the hearing of profoundly deaf people by electrical stimulation of the cochlear nerve (the nerve of hearing.) We have shown that noise added to signals can increase the amount of information transmitted by models of the cochlear nerve. However, our initial studies have been limited to the use of additive white noise. There isnow substantial evidence to suggest that the dominant source of noise present during the natural coding of acoustic stimuli is multiplicative. A pilot study (detailed in the Case for Support) indicates that these differences leads to a fundamental change in the neural coding mechanism that results in a marked improvement in the information transmitted to the higher auditory centres of the brain. These highly promising results have led us to propose a new coding strategy that multiplies the cochlear implant signals with a noise source to produce a signal-modulated random carrier. We have termed this the SDN (signal dependent noise) Coding strategy - a patent submission is planned for February 2004.We propose to test and develop the SDN Coding strategy by undertaking extensive patient testing. This work programme, if successful, will prove the utility of the SDN strategy and the resulting technology will be licensed to the main cochlear implant manufacturers.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.warwick.ac.uk |