Abstract / Description of output
In the development of neuroprostheses to restore sensory and motor function to disabled patients the choice of the electrodes to be used remains an important consideration. The optimal electrode design should be minimally invasive and be capable of recording or stimulating selectively a large number of nerve fibers. Additionally, the electrodes should be capable of delivering stimulation within electrochemically safe limits. Here we report on the use of a multi-contact cuff electrode for stimulation and recording from peripheral nerves. Nerve cuffs with 16 electrodes, comprising 4 rings of 4 electrodes, were implanted around the sciatic nerve of two rats. The electromyogram signal (EMG) was recorded in response to electrical stimulation delivered by the electrodes, and the electroneurogram signal (ENG) was recorded in response to sensory stimulation applied to the ipsilateral foot. Visually detectable muscle movements were elicited with charge injections ranging from 4.6 to 8.2 nC. ENG recordings in response to sensory stimulus allowed for the onset and culmination of sensory stimulation to be detected using mean absolute value of the signal. Initial results indicate that flexion and extension of the ankle joint can be differentiated by combining information recorded from pairs of electrodes. The results of this study indicate that multi-contact cuffs can be used for decoding neural signals; however, more data needs to be collected for classification of sensory movements to be tested.
Original language | English |
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Title of host publication | 2016 IEEE International Conference on Systems, Man, and Cybernetics (SMC) |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 003223-003227 |
Number of pages | 5 |
ISBN (Electronic) | 978-1-5090-1897-0 |
ISBN (Print) | 978-1-5090-1898-7 |
DOIs | |
Publication status | Published - 9 Feb 2017 |
Event | 2016 IEEE International Conference on Systems, Man, and Cybernetics - Badapest, Hungary Duration: 9 Oct 2016 → 12 Oct 2016 http://smc2016.org/ |
Conference
Conference | 2016 IEEE International Conference on Systems, Man, and Cybernetics |
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Abbreviated title | SMC 2016 |
Country/Territory | Hungary |
City | Badapest |
Period | 9/10/16 → 12/10/16 |
Internet address |