Ultrasound Stimulation for Patients in a Disorder of Consciousness

Inclusion Criteria: 1. Diagnosis of DoC, following international guidelines, as assessed with the CRS-R. 2. Prolonged status (\>28days post-injury) 3. If on a psychotropic medication regimen, that regimen will be stable for at least 4 weeks prior to entry to the study and the patient will be willing to remain on a stable regimen during the protocol. 4. legally authorized representative available to consent for the patient to participate in the study Exclusion Criteria: 1. History of neurological disorder (other than the brain injury). 2. Metal implant or other condition precluding safe entry in the MR-environment. 3. Manifest continuous spontaneous movement (which would prevent safe/successful imaging). 4. Participation in another concurrent clinical trial. 5. Need for mechanical ventilation. 6. Craniotomy (no bone flap). 7. Cranioplasty spanning the left temporal bone window.