DocumentCode :
1051185
Title :
HermesC: Low-Power Wireless Neural Recording System for Freely Moving Primates
Author :
Chestek, Cynthia A. ; Gilja, Vikash ; Nuyujukian, Paul ; Kier, Ryan J. ; Solzbacher, Florian ; Ryu, Stephen I. ; Harrison, Reid R. ; Shenoy, Krishna V.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
Volume :
17
Issue :
4
fYear :
2009
Firstpage :
330
Lastpage :
338
Abstract :
Neural prosthetic systems have the potential to restore lost functionality to amputees or patients suffering from neurological injury or disease. Current systems have primarily been designed for immobile patients, such as tetraplegics functioning in a rather static, carefully tailored environment. However, an active patient such as amputee in a normal dynamic, everyday environment may be quite different in terms of the neural control of movement. In order to study motor control in a more unconstrained natural setting, we seek to develop an animal model of freely moving humans. Therefore, we have developed and tested HermesC-INI3, a system for recording and wirelessly transmitting neural data from electrode arrays implanted in rhesus macaques who are freely moving. This system is based on the integrated neural interface (INI3) microchip which amplifies, digitizes, and transmits neural data across a ~ 900 MHz wireless channel. The wireless transmission has a range of ~ 4 m in free space. All together this device consumes 15.8 mA and 63.2 mW. On a single 2 A-hr battery pack, this device runs contiguously for approximately six days. The smaller size and power consumption of the custom IC allows for a smaller package (51 times 38 times 38 mm3) than previous primate systems. The HermesC-INI3 system was used to record and telemeter one channel of broadband neural data at 15.7 kSps from a monkey performing routine daily activities in the home cage.
Keywords :
bioelectric phenomena; biomedical electrodes; biomedical telemetry; neurophysiology; prosthetics; HermesC; current 15.8 mA; electrode arrays; freely moving primates; implant; integrated neural interface microchip; low-power wireless neural recording system; neural prosthetic systems; power 63.2 mW; telemeter; time 2 hr; Brain–machine interface; low power; neural prosthetics; telemetry; wireless; Action Potentials; Animals; Electrocardiography; Equipment Design; Equipment Failure Analysis; Information Storage and Retrieval; Macaca mulatta; Monitoring, Ambulatory; Motor Cortex; Nerve Net; Prostheses and Implants; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Telemetry;
fLanguage :
English
Journal_Title :
Neural Systems and Rehabilitation Engineering, IEEE Transactions on
Publisher :
ieee
ISSN :
1534-4320
Type :
jour
DOI :
10.1109/TNSRE.2009.2023293
Filename :
5061581
Link To Document :
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