Abstract：
BACKGROUND:Nerve cuff electrodes provide a safe technique for recording nerve signals. Defining a more realized modeling to investigate the selectivity of a cuff electrode in recording from peripheral nervous system is an interesting field of research. METHODS:A four-contact cuff electrode was modeled to evaluate selective recording from a peripheral nerve. Fitzhugh-Nagumo equations were used to model the electromagnetic fields generated by active nerves and electrodes and the ``selectivity index'' used to quantify the selective property of the cuff electrode. RESULTS:The action potentials amplitude and impulse velocity generated by Fitzhugh-Nagumo model are similar to real-life nerve measurements according to the literature. The electrical field distribution caused by the impulse propagation along a specific nerve was the maximum near the corresponding contact. Also, the selectivity was increased with increasing the distance between the active sources and the number of contacts. CONCLUSION:The results of this research showed that Fitzhugh-Nagumo equations could model the nerve excitation accurately and could be used in computer simulation for studying nervous systems. Also, using these equations indicated that multi-contact cuff electrodes could be used in recording peripheral nerve signals in order to discriminate active fascicles in a nerve bundle.
journal_name
J Back Musculoskelet Rehabiljournal_title
Journal of back and musculoskeletal rehabilitationauthors
Taghipour-Farshi H,Frounchi J,Ahmadiasl N,Shahabi P,Salekzamani Ydoi
10.3233/BMR-160684subject
Has Abstractpub_date
2016-11-21 00:00:00pages
749-756issue
4eissn
1053-8127issn
1878-6324pii
BMR684journal_volume
29pub_type
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journal_title：Journal of back and musculoskeletal rehabilitation
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