Memory Alpha
Memory Alpha

Delirium was an acutely disturbed state of mind characterized by restlessness, illusions, and incoherence, occurring in intoxication, fever, and other disorders.

During the Omega training mission on Titan in 2147, Commander Charles Tucker III's EV pack froze up, causing him to develop nitrogen narcosis and delirium. (ENT: "Strange New World")

In 2267, after recovering consciousness following an attack by a flying parasite, Spock became delirious and raged out of sickbay. (TOS: "Operation -- Annihilate!")

In 2268, having had James T. Kirk incapacitated by Wu, Ronald Tracey told Hikaru Sulu that Kirk couldn't talk as he was feverish and delirious. (TOS: "The Omega Glory")

In 2269, Scotty named delirious as one of the emotional states he had seen Kirk in in the past. (TOS: "Turnabout Intruder")

Richard Daystrom suffered from a delirious breakdown after realizing that the M-5 multitronic unit was failing and would damage his reputation. ("The Ultimate Computer (episode)")

In 2366, after being injured when the cultural observation post on Mintaka III experienced malfunctions, Dr. Palmer deliriously wandered away and onto the terrain of the planet. (TNG: "Who Watches The Watchers")

In 2367, a simulation of Beverly Crusher told Will Riker that a strain of Altarian encephalitis had resulted in his entering a ten-day bout of coma and delirium. (TNG: "Future Imperfect")

In 2371, Kes suddenly became delirious while The Doctor was running tests on her to explain her odd behavior. (VOY: "Elogium")

Soon after, physical contact with a sentient distortion ring left Kathryn Janeway temporarily delirious. (VOY: "Twisted")

In 2372, Seska stopped Maje Cullah from beating Chakotay by telling him that the rambling Chakotay was delirious due to previous beatings. (VOY: "Maneuvers")

In 2373, the dying Enrique Muniz deliriously mistook the Dominion's ultritium concussion shell bombardment of the ship he and others were trapped in as a fireworks display he had attended as a youth, and spoke in Spanish to his father, who was not present. (DS9: "The Ship")

In 2374, The Doctor believed Chakotay to be delirious when Chakotay ordered him to target his com signal with a photon torpedo. (VOY: "Waking Moments")

Weeks later, Harry Kim told Tom Paris he was delirious for thinking Kim capable of developing a new EMH by himself. (VOY: "Message in a Bottle")

In 2375, after being ruthlesslyinterrogated by the Breen, Ezri Dax deliriously spoke to several people who were not there, including her brother Norvo, Joran Dax and Elim Garak. (DS9: "'Til Death Do Us Part")

In 2377, a male patient aboard the Dinaali Hospital Ship 4-2 was suffering from temporal narcosis delirium. (VOY: "Critical Care")

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