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Because minimally conscious state is a relatively new criterion for diagnosis, there are very few functional imaging studies of patients with this condition. Preliminary data has shown that overall cerebral metabolism is less than in those with conscious awareness (20–40% of normal [3]) and is slightly higher but comparable to those in vegetative states.
A vegetative state (VS) or post-coma unresponsiveness (PCU) [1] is a disorder of consciousness in which patients with severe brain damage are in a state of partial arousal rather than true awareness. After four weeks in a vegetative state, the patient is classified as being in a persistent vegetative state ( PVS ).
In a minimally conscious state, the patient has intermittent periods of awareness and wakefulness. The criteria for minimally conscious state, that patients are not in a vegetative state but are not able to communicate consistently. This means, that patients have to show limited but reproducible signs of awareness of themself or their environment.
A 34-year old, who was believed to be in an unconscious vegetative state after suffering cardiac arrest 16 years ago, was shown the 1961 'Alfred Hitchcock Presents' episode "Bang! You're Dead."
This is a list of people who awoke from coma-like states, such as a persistent vegetative state, minimally conscious state, catatonic stupor, or locked-in syndrome after a lengthy period of time. [vague]
Here, "state" refers to different "amounts" of external/physical consciousness, from a total absence in coma, persistent vegetative state and general anesthesia, to a fluctuating and limited form of conscious sensation in a minimally conscious state such as sleep walking or during a complex partial epileptic seizure. [11]
Mayo Clinic Proceedings: Minimally Conscious State vs Persistent Vegetative State: The Case of Terry (Wallis) vs. The Case of Terri (Schiavo) A discussion about brain regeneration, Video interview with researchers on the Charlie Rose Show, July 28, 2006
In children, the most common cause is a stroke of the ventral pons. [9]Unlike persistent vegetative state, in which the upper portions of the brain are damaged and the lower portions are spared, locked-in syndrome is essentially the opposite, caused by damage to specific portions of the lower brain and brainstem, with no damage to the upper brain.