Digital signal processing of a novel neuron discharge model stimulation strategy for cochlear implants / 南方医科大学学报

ABSTRACT

<p><b>OBJECTIVE</b>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.</p><p><b>METHODS</b>The results of algorithm simulation in digital signal processor (DSP) were imported into Matlab for a comparative analysis.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSION</b>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.</p>