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During this phase, body temperature and heart rate fall, and the brain uses less energy. [10] REM sleep, also known as paradoxical sleep, represents a smaller portion of total sleep time. It is the main occasion for dreams (or nightmares ), and is associated with desynchronized and fast brain waves, eye movements, loss of muscle tone, [ 18 ...
Lucid dream. In the psychology subfield of oneirology, a lucid dream is a type of dream wherein a person that is dreaming realizes that they are dreaming during their dream. The capacity to have lucid dreams is a trainable cognitive skill. [ 1] During a lucid dream, the dreamer may gain some amount of volitional control over the dream ...
Emotional selection also includes two phases: a modification phase (accommodation) and a selection phase (emotional selection). However, unlike the life-or-death tests described by natural selection theory to evolve a genome, emotional selection theory employs dreams to both modify and test mental schemas during sleep.
A phrase referring to the refining of character through difficult circumstances, it is also the motto of the Prometheus Society . ignis fatuus. foolish fire. Will-o'-the-wisp . ignorantia juris non excusat. (or ignorantia legis non excusat or ignorantia legis neminem excusat) ignorance of the law is no excuse.
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Sleep cycle. The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [ 1]
Oneirology. An artist's imaginary depiction of a dream. In the field of psychology, the subfield of oneirology ( / ɒnɪˈrɒlədʒi /; from Ancient Greek ὄνειρον, oneiron, "dream"; and - λογία, - logia, "the study of") is the scientific study of dreams. Research seeks correlations between dreaming and knowledge about the functions ...
Dream. A painting depicting Daniel O'Connell dreaming of a confrontation with George IV, shown inside a thought bubble. A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep. [ 1] Humans spend about two hours dreaming per night, [ 2] and each dream lasts ...