Reference : Spiking Neural Network Decoder for Brain-Machine Interfaces
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Electrical & electronics engineering
Engineering, computing & technology : Multidisciplinary, general & others
Spiking Neural Network Decoder for Brain-Machine Interfaces
Dethier, Julie mailto [Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systmod > >]
Gilja, Vikash mailto [Stanford University > Computer Science, Institute for Neuro-Innovation, and Translational Neuroscience > > >]
Nuyujukian, Paul mailto [Stanford University > Department of Bioengineering and MSTP > > >]
Elassaad, Shauki A. mailto [Stanford University > Bioengineering > > >]
Shenoy, Krishna V. mailto [Stanford University > Electrical Engineering and Bioengineering, and Neurosciences Program > > >]
Boahen, Kwabena mailto [Stanford university > Bioengineering > > >]
Proceedings of the 5th International IEEE EMBS Conference on Neural Engineering
5th International IEEE EMBS Conference on Neural Engineering
April 27 - May 1, 2011
[en] We used a spiking neural network (SNN) to decode neural data recorded from a 96-electrode array in premotor/motor cortex while a rhesus monkey performed a point-to-point reaching arm movement task. We mapped a Kalman-filter neural prosthetic decode algorithm developed to predict the arm’s velocity on to the SNN using the Neural Engineering Framework and simulated it using Nengo, a freely available software package. A 20,000-neuron network matched the standard decoder’s prediction to within 0.03% (normalized by maximum arm velocity). A 1,600-neuron version of this network was within 0.27%, and run in real-time on a 3GHz PC. These results demonstrate that a SNN can implement a statistical signal processing algorithm widely used as the decoder in high-performance neural prostheses (Kalman filter), and achieve similar results with just a few thousand neurons. Hardware SNN implementations—neuromorphic chips—may offer power savings, essential for realizing fully-implantable cortically controlled prostheses.

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