Supplementary Materials

Decoding motor imagery from the posterior parietal cortex of a tetraplegic human

Tyson Aflalo, Spencer Kellis, Christian Klaes, Brian Lee, Ying Shi, Kelsie Pejsa, Kathleen Shanfield, Stephanie Hayes-Jackson, Mindy Aisen, Christi Heck, Charles Liu, Richard A. Andersen

Materials/Methods, Supplementary Text, Tables, Figures, and/or References

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  • Materials and Methods
  • Figs. S1 to S3
  • Captions for Movies S1 to S3
  • References

Images, Video, and Other Other Media

Movie S1
Encoding of high-level behaviorally meaningful actions in human PPC. Example biofeedback session illustrating the activity of a single neuron that shows selectivity for imagined movement of either hand to the mouth. Movements with similar gross properties such as movement of the hand to the ear evoke a minimal response. Units tuned to behaviorally meaningful high-level intentions could be used to command a smart robotic limb to e.g. bring the hand to the mouth for purposes of self-feeding without the need to control the moment-to-moment position of the limb.
Movie S2
Example biofeedback session illustrating the ability of the subject to control the activity of a single unit using imagined actions. EGS was able to evoke robust activity in this unit by imagining rotation of his right shoulder. EGS was able to silence the unit by imagining movement of his hand to his nose.
Movie S3
Example of continuous neural control of the robotic limb in two dimensions.