Title
Real-Time Fusion Of Gaze And Emg For A Reaching Neuroprosthesis
Abstract
For rehabilitative devices to restore functional movement to paralyzed individuals, user intent must be determined from signals that remain under voluntary control. Tracking eye movements is a natural way to learn about an intended reach target and, when combined with just a small set of electromyograms (EMGs) in a probabilistic mixture model, can reliably generate accurate trajectories even when the target information is uncertain. To experimentally assess the effectiveness of our algorithm in closed-loop control, we developed a robotic system to simulate a reaching neuroprosthetic. Incorporating target information by tracking subjects' gaze greatly improved performance when the set of EMGs was most limited. In addition we found that online performance was better than predicted by the offline accuracy of the training data. By enhancing the trajectory model with target information the decoder relied less on neural control signals, reducing the burden on the user.
Year
DOI
Venue
2012
10.1109/EMBC.2012.6346037
2012 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
Keywords
Field
DocType
biomechanics,probability,neurophysiology
Neuroprosthetics,Computer vision,Gaze,Computer science,Brain–computer interface,Eye movement,Artificial intelligence,Probabilistic logic,Robotics,Trajectory,Mixture model
Conference
Volume
ISSN
Citations 
2012
1557-170X
0
PageRank 
References 
Authors
0.34
4
3
Name
Order
Citations
PageRank
Elaine A Corbett121.23
Koerding, Konrad2233.67
Eric J Perreault373.40