Objective To update the 1995 American Academy of Neurology (AAN) practice parameter on
persistent vegetative state and the 2002 case definition for the minimally conscious state …

Background Patients with brain injury who are unresponsive to commands may perform
cognitive tasks that are detected on functional magnetic resonance imaging (fMRI) and …

In the absence of “hard” neurophysiologic markers, the burden of proof for establishing
conscious awareness in individuals who sustain severe brain injury lies in behavioral …

Despite converging agreement about the definition of persistent vegetative state, recent
reports have raised concerns about the accuracy of diagnosis in some patients, and the …

Durable impairments of consciousness are currently classified in three main neurological
categories: comatose state, vegetative state (also recently coined unresponsive wakefulness …

Objective Understanding residual brain function in disorders of consciousness poses
extraordinary challenges, and imaging examinations are needed to complement clinical …