Source:http://linkedlifedata.com/resource/umls/id/C0085628
NCI: A dulled or reduced level of alertness or consciousness.,MSH: A state of reduced sensibility and response to stimuli which is distinguished from COMA in that the person can be aroused by vigorous and repeated stimulation. The person is still conscious and can make voluntary movements. It can be induced by CENTRAL NERVOUS SYSTEM AGENTS. The word derives from Latin stupere and is related to stunned, stupid, dazed or LETHARGY.