Don't put words in my mouth: speech perception can falsely activate a brain-computer interface.

ABSTRACT:

Background

Recent studies have demonstrated that speech can be decoded from brain activity which in turn can be used for brain-computer interface (BCI)-based communication. It is however also known that the area often used as a signal source for speech decoding BCIs, the sensorimotor cortex (SMC), is also engaged when people perceive speech, thus making speech perception a potential source of false positive activation of the BCI. The current study investigated if and how speech perception may interfere with reliable speech BCI control.

Methods

We recorded high-density electrocorticography (HD-ECoG) data from five subjects while they performed a speech perception and a speech production task. We first evaluated whether speech perception and production activated the SMC. Secon

SUBMITTER: Schippers A 

PROVIDER: S-EPMC12362870 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature