Speech-related dorsal motor cortex activity does not interfere with iBCI cursor control.

ABSTRACT:

Objective

Speech-related neural modulation was recently reported in 'arm/hand' area of human dorsal motor cortex that is used as a signal source for intracortical brain-computer interfaces (iBCIs). This raises the concern that speech-related modulation might deleteriously affect the decoding of arm movement intentions, for instance by affecting velocity command outputs. This study sought to clarify whether or not speaking would interfere with ongoing iBCI use.

Approach

A participant in the BrainGate2 iBCI clinical trial used an iBCI to control a computer cursor; spoke short words in a stand-alone speech task; and spoke short words during ongoing iBCI use. We examined neural activity in all three behaviors and compared iBCI performance with and without concurrent speech.

M

SUBMITTER: Stavisky SD 

PROVIDER: S-EPMC8288044 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature