Title
How much do they tell us to move?
Abstract
A previous study revealed that neuronal activity in primary motor cortex (MI) and supplementary motor area (SMA) of the monkey depends both on which arm(s) moved and on the direction of movement. At the level of single cells, no differences were found between the areas in the information conveyed about each correlate. We constructed pseudosimultaneous response vectors and applied a decoding algorithm to quantify differences at a population level. We found that, on average, samples of 20 MI units carried less information about both movement type and direction than SMA units in a time window of 500 ms across the movement onset; a more detailed temporal analysis has revealed that SMA precedes M1 in motor planning and execution and that along the trial M1 cells carry as much information about direction as SMA cells. (C) 2001 Elsevier Science B.V. All rights reserved.
Year
DOI
Venue
2001
10.1016/S0925-2312(01)00558-6
NEUROCOMPUTING
Keywords
Field
DocType
neural coding,mote cortex,information theory
SMA*,Information theory,Population,Neuroscience,Premovement neuronal activity,Pattern recognition,Neural coding,Supplementary motor area,Artificial intelligence,Decoding methods,Primary motor cortex,Mathematics
Journal
Volume
ISSN
Citations 
38
0925-2312
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Valeria Del Prete100.34
Orna Steinberg200.34
Alessandro Treves35613.89
Vaadia, Eilon414115.90