At-home / self-administered BCI

A BCI operated in the user's own home by the user or a caregiver, without a research team present — the setting that most implanted and clinical BCIs are ultimately meant to reach and that few have. It changes every requirement: the system must be donned, calibrated, and troubleshot by non-experts; it must be reliable enough that a failure does not strand a person who may have no other means of communication; and it must survive weeks and months between technical visits.

The frontier is being pushed by both invasive and non-invasive systems: intracortical arrays granting independent home communication and device control to people with paralysis, endovascular implants used for at-home clicking, and non-invasive spellers for people with severe motor impairment. The hardest cases are people in late-stage locked-in and completely locked-in states, where establishing and maintaining any reliable channel at home is at the edge of what is possible and where results have been both encouraging and, in places, contested. Independent home use, more than any laboratory record, is the honest measure of whether a BCI has become a tool rather than a demonstration.