Prognostication of Recovery in Early Disorders of Consciousness Study

Research MRI, which will include both structural and functional sequences, will either be collected independently, or in conjunction with clinically-indicated sequences. Functional MRI captures the blood oxygen level dependent (BOLD) signal that reflects brain activity. A subset of the PREDICT study fMRI will include sequences with auditory and/or noxious stimulation. Noxious stimulation will be delivered with an MRI-compatible device that delivers intermittent nailbed pressure under computerized control. Additionally, the BOLD signal will be captured at rest to investigate functional neural networks.