A brain machine interface control algorithm designed from a feedback control perspective. 2012

Vikash Gilja, and Paul Nuyujukian, and Cindy A Chestek, and John P Cunningham, and Byron M Yu, and Joline M Fan, and Stephen I Ryu, and Krishna V Shenoy
Dept. of Computer Science, Stanford University, Stanford, CA, USA.

We present a novel brain machine interface (BMI) control algorithm, the recalibrated feedback intention-trained Kalman filter (ReFIT-KF). The design of ReFIT-KF is motivated from a feedback control perspective applied to existing BMI control algorithms. The result is two design innovations that alter the modeling assumptions made by these algorithms and the methods by which these algorithms are trained. In online neural control experiments recording from a 96-electrode array implanted in M1 of a macaque monkey, the ReFIT-KF control algorithm demonstrates large performance improvements over the current state of the art velocity Kalman filter, reducing target acquisition time by a factor of two, while maintaining a 500 ms hold period, thereby increasing the clinical viability of BMI systems.

UI MeSH Term Description Entries
D008251 Macaca A genus of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, consisting of 16 species inhabiting forests of Africa, Asia, and the islands of Borneo, Philippines, and Celebes. Ape, Barbary,Ape, Black,Ape, Celebes,Barbary Ape,Black Ape,Celebes Ape,Macaque,Apes, Barbary,Apes, Black,Apes, Celebes,Barbary Apes,Black Apes,Celebes Apes,Macacas,Macaques
D008297 Male Males
D004567 Electrodes, Implanted Surgically placed electric conductors through which ELECTRIC STIMULATION is delivered to or electrical activity is recorded from a specific point inside the body. Implantable Electrodes,Implantable Stimulation Electrodes,Implanted Electrodes,Implanted Stimulation Electrodes,Electrode, Implantable,Electrode, Implantable Stimulation,Electrode, Implanted,Electrode, Implanted Stimulation,Electrodes, Implantable,Electrodes, Implantable Stimulation,Electrodes, Implanted Stimulation,Implantable Electrode,Implantable Stimulation Electrode,Implanted Electrode,Implanted Stimulation Electrode,Stimulation Electrode, Implantable,Stimulation Electrode, Implanted,Stimulation Electrodes, Implantable,Stimulation Electrodes, Implanted
D005246 Feedback A mechanism of communication within a system in that the input signal generates an output response which returns to influence the continued activity or productivity of that system. Feedbacks
D000465 Algorithms A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task. Algorithm
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001132 Arm The superior part of the upper extremity between the SHOULDER and the ELBOW. Brachium,Upper Arm,Arm, Upper,Arms,Arms, Upper,Brachiums,Upper Arms
D001696 Biomechanical Phenomena The properties, processes, and behavior of biological systems under the action of mechanical forces. Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D062207 Brain-Computer Interfaces Instrumentation consisting of hardware and software that communicates with the BRAIN. The hardware component of the interface records brain signals, while the software component analyzes the signals and converts them into a command that controls a device or sends a feedback signal to the brain. Brain Machine Interface,Brain-Computer Interface,Brain-Machine Interfaces,Brain Computer Interface,Brain Computer Interfaces,Brain Machine Interfaces,Brain-Machine Interface,Interface, Brain Machine,Interface, Brain-Computer,Interface, Brain-Machine,Interfaces, Brain Machine,Interfaces, Brain-Computer,Interfaces, Brain-Machine,Machine Interface, Brain,Machine Interfaces, Brain

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