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In the psychology subfield of oneirology, a lucid dream is a type of dream wherein the dreamer realizes that they are dreaming during their dream. The capacity to have lucid dreams is a trainable cognitive skill. During a lucid dream, the dreamer may gain some amount of volitional control over the dream characters, narrative, or environment, although this control of dream content is not the salient feature of lucid dreaming. An important distinction is that lucid dreaming is a distinct type of dream from other types of dreams such as prelucid dreams and vivid dreams, although prelucid dreams are a precursor to lucid dreams, and lucid dreams are often accompanied with enhanced dream vividness. Lucid dreams are also distinct state from other lucid boundary sleep states such as lucid hypnagogia or lucid hypnopompia.
A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep. Humans spend about two hours dreaming per night, and each dream lasts around 5–20 minutes, although the dreamer may perceive the dream as being much longer than this.
A nightmare, also known as a bad dream, is an unpleasant dream that can cause a strong emotional response from the mind, typically fear but also despair, anxiety, disgust or sadness. The dream may contain situations of discomfort, psychological or physical terror, or panic. After a nightmare, a person will often awaken in a state of distress and may be unable to return to sleep for a short period of time. Recurrent nightmares may require medical help, as they can interfere with sleeping patterns and cause insomnia.
Rapid eye movement sleep is a unique phase of sleep in mammals and birds, characterized by random rapid movement of the eyes, accompanied by low muscle tone throughout the body, and the propensity of the sleeper to dream vividly.
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. Within the sleep of adults and infants there are cyclic fluctuations between quiet and active sleep. These fluctuations may persist during wakefulness as rest-activity cycles but are less easily discerned.
A false awakening is a vivid and convincing dream about awakening from sleep, while the dreamer in reality continues to sleep. After a false awakening, subjects often dream they are performing their daily morning routine such as showering or eating breakfast. False awakenings, mainly those in which one dreams that they have awoken from a sleep that featured dreams, take on aspects of a double dream or a dream within a dream. A classic example in fiction is the double false awakening of the protagonist in Gogol's Portrait (1835).
In the field of psychology, the subfield of oneirology is the scientific study of dreams. Research seeks correlations between dreaming and knowledge about the functions of the brain, as well as an understanding of how the brain works during dreaming as pertains to memory formation and mental disorders. The study of oneirology can be distinguished from dream interpretation in that the aim is to quantitatively study the process of dreams instead of analyzing the meaning behind them.
The Lucidity Institute is an incorporated research institute founded in 1987 by Stephen LaBerge that supports lucid dreaming research and development of techniques that help people achieve lucid dreams. For some time, it also produced induction devices. It currently holds seminars about lucid dreaming under the title "Dreaming and Awakening" in Kalani, Hawaii.
Celia Elizabeth Green is a British parapsychologist and writer on parapsychology.
Somniloquy, commonly referred to as sleep-talking, is a parasomnia in which one speaks aloud while asleep. It can range from simple mumbling sounds to loud shouts or long, frequently inarticulate, speeches. It can occur many times during a sleep cycle and during both NREM and REM sleep stages, though, as with sleepwalking and night terrors, it most commonly occurs during delta-wave NREM sleep or temporary arousals therefrom.
Yumemi Kōbō is a device sold by the Japanese company Takara Toys that is claimed to be able to induce lucid dreams.
A recurring dream is a dream which is experienced repeatedly over a long period. They can be pleasant or nightmarish and unique to the person and their experiences.
Pre-lucid dreaming is the beginning stages of inducing the lucid dreaming process. At this stage, the dreamer considers the question: "Am I asleep and dreaming?" The dreamer may or may not come to the correct conclusion. Such experiences are liable to occur to people who are deliberately cultivating lucid dreams, but may also occur spontaneously to those with no prior intention to achieve lucidity in dreams.
Paul Tholey was a German Gestalt psychologist, and a professor of psychology and sports science at the University of Frankfurt and the Technical University of Braunschweig.
Dream yoga or milam —the Yoga of the Dream State—is a suite of advanced tantric sadhana of the entwined Mantrayana lineages of Dzogchen. Dream yoga consists of tantric processes and techniques within the trance Bardos of Dream and Sleep Six Dharmas of Naropa. In the tradition of the tantra, the dream yoga method is usually passed on by a qualified teacher to his/her students after necessary initiation. Various Tibetan lamas are unanimous that it is more of a passing of an enlightened experience rather than any textual information.
Robert de La Berge (1638–1712) was one of the original colonists to settle in New France in 1658, and became one of the early industrialists in the area.
Scholarly interest in the process and functions of dreaming has been present since Sigmund Freud's interpretations in the 1900s. The neurology of dreaming has remained misunderstood until recent distinctions, however. The information available via modern techniques of brain imaging has provided new bases for the study of the dreaming brain. The bounds that such technology has afforded has created an understanding of dreaming that seems ever-changing; even now questions still remain as to the function and content of dreams.
Oneironautics refers to the ability to travel within a dream on a conscious basis. Such a traveler in a dream may be called an oneironaut.
Secondary consciousness is an individual's accessibility to their history and plans. The ability allows its possessors to go beyond the limits of the remembered present of primary consciousness. Primary consciousness can be defined as simple awareness that includes perception and emotion. As such, it is ascribed to most animals. By contrast, secondary consciousness depends on and includes such features as self-reflective awareness, abstract thinking, volition and metacognition. The term was coined by Gerald Edelman.
Antti Revonsuo is a Finnish cognitive neuroscientist, psychologist, and philosopher of mind. His work seeks to understand consciousness as a biological phenomenon. He is one of a small number of philosophers running their own laboratories.
References
- ↑ "Stephen LaBerge at IASD". Archived from the original on 2018-09-19. Retrieved 2008-11-03.
- ↑ Lucid Dreaming Frequently Asked Questions Answered by The Lucidity Institute
- ↑ About the Lucidity Institute
- ↑ Psychophysiology of Lucid Dreaming
- ↑ The NovaDreamer Lucid Dream Induction Device
- ↑ Lucid Dreaming Frequently Asked Questions Answered by The Lucidity Institute
