Restoring expressive communication with an intracortical brain-computer interface

25th September 2025

Timing : 1 pm ET

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For a list of all talks at the NanoBio seminar Series Fall'25, see here


Restoring communication has long been a goal of neurotechnology research; today, this dream is on the verge of fruition with ongoing commercial cursor and click brain-computer interface (BCI) clinical trials. I will describe our development of an intracortical speech BCI, which is the next frontier in restoring communication. First, we built a 99% word accuracy “brain-to-text” speech BCI. To this core capability, we’ve added neural cursor control over the participant’s personal computer (despite recording from orofacial cortex). We’ve also augmented text decoding with a loudness layer and a gesture (emoji) layer, both of which provide added expressivity, and we prototyped a neural error decoder which can reduce user frustration. Lastly, I’ll describe our progress towards an instantaneous voice synthesis BCI aimed at functionally replacing the paralyzed vocal system.