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LFP beta power predicts cursor stationarity in BMI task

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3 Author(s)
Ranade, G.V. ; Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA ; Ganguly, K. ; Carmena, J.

Beta band oscillations in the local field potential (LFP) have been previously related to behavior in motor tasks. We investigated the correlations between beta oscillations and movement state for brain-machine interfaces. Two macaque monkeys were trained to perform a center-out motor task on a computer under normal movement control and under a dasiabrain controlpsila paradigm, where neural firing directly controls the cursor. In both cases, LFP beta power decreased after movement onset. High beta power was predominantly observed with low movement velocity and vice versa. This observation was used to predict the stationarity of a computer cursor during brain control.

Published in:

Neural Engineering, 2009. NER '09. 4th International IEEE/EMBS Conference on

Date of Conference:

April 29 2009-May 2 2009

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