Title
Estimation of tongue movement based on suprahyoid muscle activity
Abstract
With attention to voluntary tongue motion, which is capable of communicating the intentions of a person with a disability, we estimated the position and contact force of the tongue simultaneously using EMG signals of the underside of the jaw. We affixed a multi-channel electrode with nine electrodes to the underside of the jaw. Then, deriving many EMG signals using monopolar leads, we calculated 36 (= 9C2) channel EMG signals between any two of the nine electrodes. Associating these EMG signals and tongue movement using a neural network, we confirmed our ability to estimate the tongue position and contact force with precision, with a correlation coefficient greater than 0.9 and RMS error less than 10%. Furthermore, building a neural network estimating deglutition, yawning, and mouth opening, which are potential origins of false estimation, and introducing mask processing to reduce estimation error in voluntary tongue movement more than 95%, we suggest precise extraction of only the signal of that movement from EMG signals obtainable from the underside of the jaw.
Year
DOI
Venue
2011
10.1109/MHS.2011.6102222
Micro-NanoMechatronics and Human Science
Keywords
Field
DocType
biomechanics,biomedical electrodes,electromyography,neural nets,EMG signals,RMS error,deglutition,mouth opening,multichannel electrode,neural network,suprahyoid muscle activity,tongue movement,tongue position,voluntary tongue motion,yawning
Computer vision,Suprahyoid muscles,Contact force,Electromyography,Speech recognition,Control engineering,Artificial intelligence,Biomechanics,Tongue movement,Materials science,Tongue
Conference
ISSN
ISBN
Citations 
Pending
978-1-4577-1360-6
5
PageRank 
References 
Authors
0.78
4
4
Name
Order
Citations
PageRank
Minoru Sasaki17818.29
Tetsuo Arakawa2466.93
Atsushi Nakayama3102.27
G Obinata4154.16