Digital signal processing of a novel neuron discharge model stimulation strategy for cochlear implants.
- Author:
Yiwei YANG
1
;
Yuejin XU
;
Jichang MIU
;
Linghong ZHOU
;
Zhongju XIAO
Author Information
- Publication Type:Journal Article
- MeSH: Acoustic Stimulation; Algorithms; Cochlear Implantation; Cochlear Implants; Humans; Membrane Potentials; Models, Theoretical; Signal Processing, Computer-Assisted; Speech Discrimination Tests
- From: Journal of Southern Medical University 2012;32(10):1435-1439
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo apply the classic leakage integrate-and-fire models, based on the mechanism of the generation of physiological auditory stimulation, in the information processing coding of cochlear implants to improve the auditory result.
METHODSThe results of algorithm simulation in digital signal processor (DSP) were imported into Matlab for a comparative analysis.
RESULTSCompared with CIS coding, the algorithm of membrane potential integrate-and-fire (MPIF) allowed more natural pulse discharge in a pseudo-random manner to better fit the physiological structures.
CONCLUSIONThe MPIF algorithm can effectively solve the problem of the dynamic structure of the delivered auditory information sequence issued in the auditory center and allowed integration of the stimulating pulses and time coding to ensure the coherence and relevance of the stimulating pulse time.
