Method for verifying time domain fine structure novel code of artificial cochlea tone language

A cochlear implant and fine structure technology, applied in artificial respiration, electrotherapy, therapy, etc., can solve problems such as lack of evaluation value

Active Publication Date: 2018-12-18
CHONGQING UNIV
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Problems solved by technology

In view of the fact that the simulation research is aimed at the simplification of the real system under the specific research target conditions, it can only have important reference significance for the actual system experiment, and always lacks real and effective evaluation value

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  • Method for verifying time domain fine structure novel code of artificial cochlea tone language
  • Method for verifying time domain fine structure novel code of artificial cochlea tone language
  • Method for verifying time domain fine structure novel code of artificial cochlea tone language

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Experimental program
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Embodiment 1

[0079] see Figure 1 to Figure 5 , a method for verifying the novel encoding of time domain fine structure of cochlear implant tone language, which mainly includes the following steps:

[0080] 1) Establish spatio-temporal quantitative model I of the original speech-induced inferior colliculus neural response. The main steps are as follows:

[0081] 1.1) Select an experimental organism model suitable for the study of auditory neural pathways.

[0082] Preferably, in this embodiment, guinea pigs are selected as the experimental organisms, and the natural auditory neural pathways of the guinea pigs are fully utilized to verify and evaluate the new time domain fine structure coding of the cochlear implant tone language.

[0083] Further, rats, Mongolian gerbils, etc. can also be selected as experimental organisms.

[0084] 1.2) Perform an audiometry curve test on the single ear of the experimental organism using the CLICK sound signal. The tests mainly include hearing thresho...

Embodiment 2

[0145] In this embodiment, the verification method of the novel encoding of the time-domain fine structure of the cochlear implant tone language is compared with the mathematical simulation method of the auditory neural network. The mathematical simulation method of the auditory neural network can be found in figure 2 . The comparison steps are as follows:

[0146] 1) Using the verification method of the novel encoding of the time-domain fine structure of the cochlear implant tone language to verify the new encoding of the time-domain fine structure of the cochlear implant tone language to be verified. The main steps are as follows:

[0147] 1.1) Select the experimental organism. In this embodiment, guinea pigs are selected as the experimental organisms.

[0148] 1.2) Establish the original speech stimulus-induced inferior colliculus nerve response mode I(Y special_o )

[0149] 1.3) Establishment of a new coded speech electrical stimulation-induced inferior colliculus n...

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Abstract

The invention discloses a method for verifying a time domain fine structure novel code of an artificial cochlea tone language. The method mainly comprises the following steps of 1), selecting an experiment biosome; 2), establishing a nervus thalamicus response time-space quantified mode I under the condition of original voice induction; 3), establishing a nervus thalamicus response time-space modeII on the condition of novel coding tone voice stimulation induction; 4), establishing a nervus thalamicus response time-space mode III on the condition of novel coding voice electric stimulation; and 5), through adjusting an electric stimulation mode parameter which corresponds with a voice code, making the nervus thalamicus response time-space mode III on the condition of novel coding voice electric stimulation approach the nervus thalamicus response time-space quantified mode I under the condition of original voice induction. The method can really and objectively reflect the receiving degree of a biosome hearing channel to a certain sound coding strategy and can be used as an auxiliary evaluating method for an artificial cochlea novel voice code.

Description

technical field [0001] The invention relates to the technical field of a cochlear implant (CI) system, in particular to a verification method for a novel encoding of a time-domain fine structure of a tone language of a cochlear implant. Background technique [0002] At present, most CI users are close to the hearing performance of normal hearing people in standard hearing tests and daily speech recognition in a quiet environment, but there is still a gap in their hearing ability compared with normal hearing people. For example, CI implanters have poor speech perception in noisy environments: they have a hearing loss of nearly 15 dB in a steady-state noise background, and they have a hearing loss of nearly 30 dB in a competitive speech environment. The implanter's perception of music is also limited: if the recognition of rhythm is not satisfactory, the perception of melody and timbre can only be said to be negligible. Moreover, tonal language implanters are more prone to en...

Claims

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Application Information

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IPC IPC(8): G16H50/50G06F17/50A61N1/36
CPCA61N1/36038A61N1/36039G16H50/50G06F30/23
Inventor 王星陈春烨侯文生陈涛赵帅姜彬彭飞吴小鹰郑小林
Owner CHONGQING UNIV
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