During the 1920's the Abstractionists, the German Bauhaus group of industrial designers, and the new architects all had the dream of some well ordered utopia, or welfare state, in which their neat and logical constructions might find their proper place.

During the 1980s, further scientific evidence to confirm the existence of lucid dreaming was produced as lucid dreamers were able to demonstrate to researchers that they were consciously aware of being in a dream state ( again, primarily using eye movement signals ).

During REM sleep the body paralyzes itself as a protection mechanism to prevent the movements that occur in the dream from causing the physical body to move.

* During the Siege of Tyana, Emperor Aurelian has a dream of Apollonius of Tyana and spares the city.

During the accommodation phase, mental schemas self-modify by incorporating dream themes.

During the night, many external stimuli may bombard the senses, but the brain often interprets the stimulus and makes it a part of a dream to ensure continued sleep.

During the discussion, the Hartleys ' neighbor, Howard Borden ( Bill Daily ), quipped, " I had a dream like that once.

During the 1950s, a number of " dream cars " were built by Packard in an attempt to keep the marque alive in the imaginations of the American car-buying public.

During the same year, Voorhies guest-starred in the season 6 episode of Family Matters, entitled " Home Sweet Home ," as Eddie's upstairs dream girl.

During this period of private Buddhist practice, Kūkai had a dream, in which a man appeared and told Kūkai that the Mahavairocana Sutra is the scripture which contained the doctrine Kūkai was seeking.

During that time, her mother pursued her acting dream.

During the sixth season episode " Mayham ," when Tony is comatose from a gunshot wound, he has a vivid dream that some have construed as being a rendition of purgatory.

During a Wayne's World sketch, Wayne ( Mike Myers ) and Garth ( Dana Carvey ) encounter a seductive Madonna lying on a bed in a hotel room during a fantasy dream sequence ( also filmed in black and white ).

During one dream sequence, the infamous Foot Foot, from the song by The Shaggs, gnaws on Clay's leg.

During the recording of the final lecture she also revealed that she had suffered an anxiety dream, in which she imagined that she was to be arrested for breaking the Official Secrets Act after having given the lectures.

During the Onslaught Saga, Frost unwittingly levitated several kitchen utensils while having a bad dream.

During a time when Rome was struggling with harsh agricultural conditions, Numa was instructed by the rustic god Faunus in a dream that a sacrifice to Tellus was needed.

During a college lecture where Dr. Walsh is discussing the difference between language and communication, Buffy has a dream in which Riley kisses her.

During this period each episode would illustrate a dream by a single reader.

" During his dream both Buffy and Willow tell him, " I'm way ahead of you ," underscoring his fear that this is really the case.

During this part of his dream, Buffy is dressed as a child, with pigtails, and is unable to throw a ball straight without his help and instruction, an indication of his fear that she will be unable to do her job without his guidance.

During this dream Raistlin hears this mysterious voice telling him that in order to save his life and the life of his comrades he must be willing to accept the black robes.

During his teenage years he was part of a band, quitting Milton District High School in his final year to pursue his dream of becoming a rock star.

During this dream state, Sheridan meets Lorien, and near the end of the ensuing discussion on life, death, and the universe, Lorien asks Sheridan a question:

During ordinary non-dream sleep, people who are awakened report only vague and sketchy thoughts, and their experiences do not cohere into a continuous narrative.

During this period, he was frequently unemployed and homeless, and sometimes had to sleep on the street, in theaters, or at friends ' houses.

During a full 8-hour night sleep, two hours of it is spent dreaming.

During REM sleep, the release of the neurotransmitters norepinephrine, serotonin and histamine is completely suppressed.

During a row over Sir Thomas More's opposition to Anne's queenship, Anne refuses to sleep with her husband unless More is put to death.

During a night in his conquest on Masyaf, Saladin woke-up from his sleep to find a figure leaving his tent.

During withdrawal REM sleep is typically exaggerated as part of a rebound effect.

During sleep, or during waking states when an animal is resting or otherwise not engaged with its surroundings, the hippocampal EEG shows a pattern of irregular slow waves, somewhat larger in amplitude than theta waves.

During the day, moreporks sleep in roosts.

During a bear's winter sleep state, the degree of metabolic depression is much less than that observed in smaller mammals and the bear's body temperature remains relatively stable ( depressed from to approximately ).

During the early stages, a combination of perceived pleasure acting as positive reinforcement and desire to respond to social peer pressure may offset the unpleasant symptoms of initial use, which typically include nausea and interrupted sleep patterns.

During his visit of 1617, James held court in the refurbished palace, but still preferred to sleep at Holyrood.

During the war with Rama, Kumbhakarna was awakened from his sleep.

During the fishing season he would hardly sleep, as he bought fish and ran them from the fishing grounds to Sitka.

During this period of sleep, high levels of acetylcholine in the hippocampus suppress feedback from the hippocampus to the neocortex, and lower levels of acetylcholine and norepinephrine in the neocortex encourage the spread of associational activity within neocortical areas without control from the hippocampus.

During the 2002 Moscow theater hostage crisis an unsuccessful attempt to use an unknown gas — thought to be fentanyl, or 3-methylfentanyl, for inducing sleep in the terrorists and hostages — caused the deaths of many hostages, some from choking on their vomit, others from an overdose, while many of the Chechen terrorists survived using gas masks and were able to fight the Russian forces ( still, the suicide bombers among the hostages lost consciousness, as projected ).

During the afternoon of December 23, after he had learned of the position of the British encampment, Andrew Jackson reportedly said, " By the Eternal they shall not sleep on our soil.

During sleep, ( and for some during waking hours while conscious attention is distracted ) subconscious processes can run unchecked, allowing bruxism to occur.

During a normal night of sleep, humans usually experience about four or five periods of REM sleep ; they are quite short at the beginning of the night and longer toward the end.

During REM, the activity of the brain's neurons is quite similar to that during waking hours ; for this reason, the REM-sleep stage may be called paradoxical sleep.

During a normal night of sleep the penis and clitoris may be erect for a total time of from one hour to as long as three and a half hours during REM.