Journal
JOURNAL OF NEUROPHYSIOLOGY
Volume 108, Issue 1, Pages 18-24Publisher
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/jn.00832.2011
Keywords
electromyograms; brain-machine interfaces; action potentials; motor cortex; electrophysiology
Categories
Funding
- National Institute of Neurological Disorders and Stroke [K08NS-060223, R01NS-053603]
Ask authors/readers for more resources
Flint RD, Ethier C, Oby ER, Miller LE, Slutzky MW. Local field potentials allow accurate decoding of muscle activity. J Neurophysiol 108: 18-24, 2012. First published April 11, 2012; doi:10.1152/jn.00832.2011.-Local field potentials (LFPs) in primary motor cortex include significant information about reach target location and upper limb movement kinematics. Some evidence suggests that they may be a more robust, longer-lasting signal than action potentials (spikes). Here we assess whether LFPs can also be used to decode upper limb muscle activity, a complex movement-related signal. We record electromyograms from both proximal and distal upper limb muscles from monkeys performing a variety of reach-to-grasp and isometric wrist force tasks. We show that LFPs can be used to decode activity from both proximal and distal muscles with performance rivaling that of spikes. Thus, motor cortical LFPs include information about more aspects of movement than has been previously demonstrated. This provides further evidence suggesting that LFPs could provide a highly informative, long-lasting signal source for neural prostheses.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available