Augmented Reality BCI Longitudinal Study for Persons With Late Stage ALS

Inclusion criteria: * Must have someone (LAR) who can consent to their participation and who will be present in the study alongside the participant * Must have a designated individual who can be trained on the Cognixion system * Fluent in understanding English * 18 years or older * Must have ALS and need an assistive communication device * Must be able to engage in volitional eye opening and sustain eye opening independently for x duration * Must have a way to communicate apart from using the Cognixion device such as vocalizations, head nod, eye blinks, eyebrow raises, etc. At a minimum, reliable way of communicating "Yes" and "No" Exclusion criteria: * Disruption in English comprehension, either due to lack of fluent proficiency or due to a developmental/acquired language disorder (e.g. aphasia) * Severely hearing impaired or deaf * Sensitivity to flashing lights * History of epilepsy and/or seizures * Vision disorders restricting the visual field such as glaucoma, diplopia (double vision), nystagmus (involuntary eye movements) * History of vertigo or other vestibular disorders * Scalp that is prone to irritation, inflammation, injury, or infectious process