Awareness Detection and Communication in Disorders of Consciousness

Study 1 - Initial assessment/screening Inclusion Criteria: * Disorder of consciousness or low awareness state diagnosis ranging from unclear diagnosis in low awareness states, vegetative state and minimally conscious diagnosis. Those with locked in syndrome / completed locked in syndrome resulting from injury or disease e.g., motor neuron disease who do not have health problems that would preclude them from participating may be assessed but considered as a separate cohort to those with low awareness states. * acute, post-acute patients where appropriate Exclusion Criteria: * Participants with brain related diseases or illnesses (e.g., progressive neurological condition or uncontrolled epilepsy) or suffer from pain (these may adversely affect the brain data produced) and are deemed to be unsuitable for the trials by clinical teams. * Current consumption of medications that cause excessive fatigue or adversely affect cognitive functioning * Where English is not the individual's first language * Participant with excessive uncontrollable arm or head movement or teeth grinding as EEG signal quality will be degraded significantly. Study 2 - BCI training Inclusion Criteria: \- Those identified in study 1 to have a level of awareness based on observed appropriate brain activations and/or those who have known awareness but are target groups for movement independent assistive devices and technologies controlled using a brain-computer interface. Exclusion Criteria: \- Participants who have shown no active brain responses in study 1 where the difference between baseline