Patients can have few reflexes, no reactions to sense stimuli or body signals, no awareness, no arousal, no consciousness, no experiences, no voluntary movements, and no waking {coma, mental state} {comatose}|. Patients keep eyes closed. Patients typically do not recover.
causes
Both-hemisphere brainstem-nuclei trauma or oxygen deprivation can cause coma. Posterior upper brainstem arousal-system damage can cause coma. Coma always involves anterior and posterior intralaminar thalamus nuclei damage. Rostral pons and dorsal midbrain damage, or mesencephalic reticular formation and thalamus damage, causes coma for one to seven days. Paramedian thalamic damage causes long-term coma [Giacino, 1997] [Plum and Posner, 1983] [Schiff, 2004] [Schiff and Plum, 2000] [Zafonte and Zasler, 2002] [Zeman, 2001].
Metrazol induces coma but is no longer used in psychiatric treatment. Insulin induces coma.
Consciousness>Consciousness>States>Impaired States
1-Consciousness-States-Impaired States
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Date Modified: 2022.0224