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The phenomenon was first described by Francis Galton in 1880 in a statistical study about mental imagery. [2] Galton wrote: To my astonishment, I found that the great majority of the men of science to whom I first applied, protested that mental imagery was unknown to them, and they looked on me as fanciful and fantastic in supposing that the words "mental imagery" really expressed what I ...
A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep. [1]
The dream report is only narrative, which makes capturing the whole picture difficult. Verbal reports face other difficulties like forgetting. Dreams and reports of dreams are produced in distinct states of consciousness resulting in a delay between the dream event and its recall while awake.
The color is not possible to achieve through normal vision, because the lack of incident light (in the black) prevents saturation of the blue/yellow chromatic signal (the blue appearance). Self-luminous colors These mimic the effect of glowing material, even when viewed on a medium such as paper, which can only reflect and not emit its own light.
The term lucid dream was coined by Dutch author and psychiatrist Frederik van Eeden in his 1913 article A Study of Dreams, [5] though descriptions of dreamers being aware that they are dreaming predate the article. [5] Psychologist Stephen LaBerge is widely considered the progenitor and leading pioneer of modern lucid dreaming research. [9]
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A dream has been defined by some (e.g. Encyclopædia Britannica) as a hallucinatory experience during sleep. A lucid dream may be defined as one in which the dreamer is aware that they are asleep and dreaming. The term 'lucid dream' was first used by the Dutch physician Frederik van Eeden, [12] who studied his own dreams of this type. The word ...