Motor cortical activity changes during neuroprosthetic-controlled object interaction.

ABSTRACT: Brain-computer interface (BCI) controlled prosthetic arms are being developed to restore function to people with upper-limb paralysis. This work provides an opportunity to analyze human cortical activity during complex tasks. Previously we observed that BCI control became more difficult during interactions with objects, although we did not quantify the neural origins of this phenomena. Here, we investigated how motor cortical activity changed in the presence of an object independently of the kinematics that were being generated using intracortical recordings from two people with tetraplegia. After identifying a population-wide increase in neural firing rates that corresponded with the hand being near an object, we developed an online scaling feature in the BCI system that operated without

SUBMITTER: Downey JE 

PROVIDER: S-EPMC5717217 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature