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Exploiting multiple sensory modalities in brain-machine interfaces
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DOI：10.1016/j.neunet.2009.05.006.png)
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Abstract
En 中文
Recent improvements in cortically-control led brain-machine interfaces (BMIs) have raised hopes that Such technologies may improve the quality of life of severely motor-disabled patients However, Current generation BMIs do not perform up to their potential due to the neglect of the full range of sensory feedback in their strategies for training and control Here we confirm that neurons in the primary motor cortex (MI) encode sensory information and demonstrate a significant heterogeneity in their responses with respect to the type of sensory modality available to the subject about a reaching task. We further show using mutual information and directional tuning analyses that the presence Of multi-sensory feedback (i.e vision and proprioception) during replay of movements evokes neural responses in MI that are almost indistinguishable from those responses measured during Overt movement Finally, we suggest how these playback-evoked responses may be used to improve BMI performance. (C) 2009 Elsevier Ltd. All rights reserved.
Keywords:
Motor cortex
Observation
Mirror-neuron
Brain machine interface
Sensory feedback
Proprioception
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