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IEEE Trans Syst Man Cybern B Cybern. 2010 Oct;40(5):1387-97. doi: 10.1109/TSMCB.2009.2036931. Epub 2009 Dec 15.

Learning in closed-loop brain-machine interfaces: modeling and experimental validation.

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  • 1Department of Electrical Engineering and Computer Sciences and the Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA.

Abstract

Closed-loop operation of a brain-machine interface (BMI) relies on the subject's ability to learn an inverse transformation of the plant to be controlled. In this paper, we propose a model of the learning process that undergoes closed-loop BMI operation. We first explore the properties of the model and show that it is able to learn an inverse model of the controlled plant. Then, we compare the model predictions to actual experimental neural and behavioral data from nonhuman primates operating a BMI, which demonstrate high accordance of the model with the experimental data. Applying tools from control theory to this learning model will help in the design of a new generation of neural information decoders which will maximize learning speed for BMI users.

PMID:
20007050
[PubMed - indexed for MEDLINE]
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