[Digital signal processing of a novel neuron discharge model stimulation strategy for cochlear implants].
OBJECTIVE
To 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.


METHODS
The results of algorithm simulation in digital signal processor (DSP) were imported into Matlab for a comparative analysis.


RESULTS
Compared 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.


CONCLUSIONS
The 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.
School of Biomedical Engineering, Southern Medical University, Guangzhou, China. yyw168@fimmu.com
Yiwei
Y
Yang
Yuejin
Y
Xu
Jichang
J
Miu
Linghong
L
Zhou
Zhongju
Z
Xiao
D000161:Acoustic Stimulation; D000465:Algorithms; D019929:Cochlear Implantation; D003054:Cochlear Implants; D006801:Humans; D008564:Membrane Potentials; D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted; D013063:Speech Discrimination Tests