S
Samuel R. Nason
Researcher at University of Michigan
Publications - 21
Citations - 309
Samuel R. Nason is an academic researcher from University of Michigan. The author has contributed to research in topics: Computer science & Amplifier. The author has an hindex of 6, co-authored 16 publications receiving 118 citations.
Papers
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Journal ArticleDOI
A low-power band of neuronal spiking activity dominated by local single units improves the performance of brain–machine interfaces
Samuel R. Nason,Alex K. Vaskov,Matthew S. Willsey,Elissa J. Welle,Hyochan An,Philip P. Vu,Autumn J Bullard,Chrono S. Nu,Jonathan C. Kao,Krishna V. Shenoy,Taekwang Jang,Taekwang Jang,Hun-Seok Kim,David Blaauw,Parag G. Patil,Cynthia A. Chestek +15 more
TL;DR: It is shown that the 300–1,000 Hz band of spiking activity, dominated by local single-unit spikes, can enhance the decoding performance of neural interfaces and correlates better with the firing rates of lower signal-to-noise-ratio units than the TCR.
Journal ArticleDOI
Neural control of finger movement via intracortical brain-machine interface
Zachary T. Irwin,Karen E. Schroeder,Philip P. Vu,Autumn J Bullard,Derek M. Tat,Chrono S. Nu,Alex K. Vaskov,Samuel R. Nason,David E. Thompson,J N Bentley,Parag G. Patil,Cynthia A. Chestek +11 more
TL;DR: This is the first demonstration of brain control of finger-level fine motor skills in rhesus macaques and it is believed that these results represent an important step towards full and dexterous control of neural prosthetic devices.
Proceedings ArticleDOI
26.9 A 0.19×0.17mm 2 Wireless Neural Recording IC for Motor Prediction with Near-Infrared-Based Power and Data Telemetry
Jongyup Lim,Eunseong Moon,Michael Barrow,Samuel R. Nason,Paras R. Patel,Parag G. Patil,Sechang Oh,Inhee Lee,Hun-Seok Kim,Dennis Sylvester,David Blaauw,Cynthia A. Chestek,Jamie Phillips,Taekwang Jang +13 more
TL;DR: This paper proposes an electrocorticography (ECoG) recording system with near-field RF power transfer and bilateral communication, but the 0.5W Tx exceeds maximum exposure limits by 10x and computes so-called spiking band power on-chip to save 920x power while maintaining accurate finger position and velocity decoding.
Journal ArticleDOI
Cortical Decoding of Individual Finger Group Motions Using ReFIT Kalman Filter.
Alex K. Vaskov,Zachary T. Irwin,Zachary T. Irwin,Samuel R. Nason,Philip P. Vu,Chrono S. Nu,Autumn J Bullard,Mackenna Hill,Mackenna Hill,Naia North,Parag G. Patil,Cynthia A. Chestek +11 more
TL;DR: This is the first systematic and biomimetic separation of digits for continuous online decoding in a NHP as well as the first demonstration of the ReFIT Kalman filter improving the performance of precise finger decoding.
Journal ArticleDOI
The future of upper extremity rehabilitation robotics: research and practice.
Philip P. Vu,Cynthia A. Chestek,Samuel R. Nason,Theodore A. Kung,Stephen W.P. Kemp,Paul S. Cederna +5 more
TL;DR: The findings show that peripheral nerve interfaces and brain‐machine interfaces have many similar characteristics that enable them to be concurrently developed and may lead to novel physiological models that may one day fully restore upper limb motor function for a growing patient population.