Patients can have no voluntary movements, can have no reactions to sense stimulation or body signals, can have intermittent arousal and eye opening, and can sleep and wake {vegetative state}|. They can have reflexes and eye blinks [Celesia, 1997] [Laureys et al., 2000] [Laureys et al., 2002].
causes
Both-hemisphere brainstem-nuclei trauma or oxygen deprivation can cause vegetative state. Permanent vegetative state patients have bilateral thalamic damage but little cerebrum damage.
time
People can stay in vegetative state more than 30 days {persistent vegetative state}. People can stay in vegetative state for much longer {permanent vegetative state}.
Consciousness>Consciousness>States>Impaired States
1-Consciousness-States-Impaired States
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Date Modified: 2022.0224