Automatic measurement of neural response concurrent with psychophysics measurement of stimulating device recipient
First Claim
1. A method for fitting a cochlear implant for a recipient, comprising:
- receiving a user-specified current level;
applying to a stimulation channel of the cochlear implant a stimulus signal comprising a substantially imperceptible neural response component based on the user-specified current level and configured to elicit an evoked compound action potential (ECAP) neural response, and a perceivable psychophysics component having the user-specified current level and configured to elicit a psychophysics response, wherein each of the neural response component and the psychophysics component are configured for determination of a common dynamic range parameter for the cochlear implant;
automatically measuring the ECAP neural response; and
concurrently displaying the ECAP neural response measurement and an indication of the user-specified current level.
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Accused Products
Abstract
The automatic measurement of evoked compound action potential (ECAP) thresholds of the auditory nerve; that is, a neural response, concurrently with the performance of psychophysics measurements of a prosthetic hearing implant recipient. During the fitting process, a stimulus signal comprising two components is applied to each stimulation channel. One signal component is configured to elicit an ECAP neural response, referred to herein as a neural response signal component. The other component is configured to elicit a response to a psychophysics stimulation, referred to herein as a psychophysics signal component. Indications of the psychophysics measurement and the concurrently obtained neural response measurements are provided to the user. For the psychophysics measurement, this includes the selected characteristics of the psychophysics signal component since the results of the applied stimulation is a recipient behavioral or auditory response.
66 Citations
19 Claims
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1. A method for fitting a cochlear implant for a recipient, comprising:
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receiving a user-specified current level; applying to a stimulation channel of the cochlear implant a stimulus signal comprising a substantially imperceptible neural response component based on the user-specified current level and configured to elicit an evoked compound action potential (ECAP) neural response, and a perceivable psychophysics component having the user-specified current level and configured to elicit a psychophysics response, wherein each of the neural response component and the psychophysics component are configured for determination of a common dynamic range parameter for the cochlear implant; automatically measuring the ECAP neural response; and concurrently displaying the ECAP neural response measurement and an indication of the user-specified current level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A fitting system configured to receive a user-specified current level, and to provide an instruction to a cochlear implant to cause the cochlear implant to apply to a stimulation channel of a cochlear implant a first stimulus signal comprising a substantially imperceptible neural response component based on the user-specified current level and configured to elicit an evoked compound action potential (ECAP) neural response, and a perceivable psychophysics component having the user-specified current level and configured to elicit a psychophysics response, wherein each of the neural response component and the psychophysics component are configured for determination of a common dynamic range parameter for the cochlear implant;
- and further configured to automatically measure the ECAP neural response, and to concurrently display the ECAP neural response measurement and an indication of the user-specified current level.
- View Dependent Claims (15, 16, 17, 18, 19)
Specification