Please assess the completion status of the following clinical trial:

Trial Title: Stable and Independent Communication Brain-computer Interfaces

Study Design Characteristics:
- Allocation: None
- Intervention Model: SEQUENTIAL
- Observational Model: None
- Primary Purpose: SUPPORTIVE_CARE
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion criteria for healthy persons:~* Older than 18~* Fluent in French, English, German or Italian~* Good visual acuity~Inclusion criteria for people with tetraplegia:~* Older than 18~* Fluent in French, English, German or Italian~* Good visual acuity~* Diagnosed with spinal cord injury, brainstem stroke, spinal stroke, muscular dystrophy or other non-degenerative motor neuron disorders~* Limited or no ability to use both hands - less than grade 4 muscle strength in elbow extension and wrist extension and less than grade 2 strength in finger flexor and abduction on both sides~Inclusion criteria for people with locked-in syndrome:~* Were fluent in French, English, German or Italian before losing the ability to speak~* Enough visual capability to see large letters from a distance of around 50cm according to caretaker's or guardian's opinion~Exclusion criteria for healthy persons:~* Smokers~* Substance or alcohol abuse~* Neurological or psychiatric illness~* History of cranio-facial surgery~* Metallic implants that would prohibit the subject from having a MRI scan~* Medications that may retard motor coordination and cognitive ability (such as sedatives)~* Seizure disorders~* Treated with anti-epileptic medications~Exclusion criteria for people with tetraplegia and locked-in syndrome:~* Disabling neurological illness other than tetraplegia or locked-in syndrome~* Disabling psychiatric illness~* History of cranio-facial surgery

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- Stable and Independent Communication Brain-computer Interfaces (Type: EXPERIMENTAL): Each arm will receive the same intervention.

Based on this trial design, predict the completion outcome and termination type (if applicable).