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80-557: According to this model, knowledge acquired by the superconscious need not be from the present or nearby. It may be from the past or future, from a physically remote present, or of beings undetectable by the physical senses. Superconsciousness is therefore believed by its supporters to provide an explanation for psychic phenomena such as precognition , remote vision and seances . Mainstream science does not recognise such psychic phenomena as genuine, and therefore regards theories to account for them as pseudoscience . An early exponent of

160-494: A "quasi-therapeutic" function, enabling the dreamer to process trauma in a safe place. Revonsuo's 2000 threat simulation hypothesis, whose premise is that during much of human evolution, physical and interpersonal threats were serious, giving reproductive advantage to those who survived them. Dreaming aided survival by replicating these threats and providing the dreamer with practice in dealing with them. In 2015, Revonsuo proposed social simulation theory, which describes dreams as

240-477: A coding system to study 1,000 dream reports from college students. Results indicated that participants from varying parts of the world demonstrated similarity in their dream content. The only residue of antiquity's authoritative dream figure in the Hall and Van de Castle listing of dream characters is the inclusion of God in the category of prominent persons. Hall's complete dream reports were made publicly available in

320-411: A diary. This prevented the selective memory effect, and the dreams no longer seemed accurate about the future. Another experiment gave subjects a fake diary of a student with apparently precognitive dreams. This diary described events from the person's life, as well as some predictive dreams and some non-predictive dreams. When subjects were asked to recall the dreams they had read, they remembered more of

400-692: A divine revelation. For example, the Hebrew prophet Samuel would "lie down and sleep in the temple at Shiloh before the Ark and receive the word of the Lord", and Joseph interpreted a Pharaoh's dream of seven lean cows swallowing seven fat cows as meaning the subsequent seven years would be bountiful, followed by seven years of famine. Most of the dreams in the Bible are in the Book of Genesis . Christians mostly shared

480-427: A dream is one of three states that the soul experiences during its lifetime, the other two states being the waking state and the sleep state. The earliest Upanishads , written before 300 BCE, emphasize two meanings of dreams. The first says that dreams are merely expressions of inner desires. The second is the belief of the soul leaving the body and being guided until awakened. In Judaism, dreams are considered part of

560-514: A dream of a dim star high in the night sky indicated problems in the head region, while low in the night sky indicated bowel issues. Greek philosopher Plato (427-347) wrote that people harbor secret, repressed desires, such as incest, murder, adultery, and conquest, which build up during the day and run rampant during the night in dreams. Plato's student, Aristotle (384–322 BCE), believed dreams were caused by processing incomplete physiological activity during sleep, such as eyes trying to see while

640-497: A person's memories and experiences, but conversation can take on highly exaggerated and bizarre forms. Some dreams may even tell elaborate stories wherein the dreamer enters entirely new, complex worlds and awakes with ideas, thoughts and feelings never experienced prior to the dream. People who are blind from birth do not have visual dreams. Their dream contents are related to other senses, such as hearing , touch , smell , and taste , whichever are present since birth. Dream study

720-573: A physician from Hamburg, was the first who suggested that dreams are a need and that they have the function to erase (a) sensory impressions that were not fully worked up, and (b) ideas that were not fully developed during the day. In dreams, incomplete material is either removed (suppressed) or deepened and included into memory. Freud , whose dream studies focused on interpreting dreams, not explaining how or why humans dream, disputed Robert's hypothesis and proposed that dreams preserve sleep by representing as fulfilled those wishes that otherwise would awaken

800-442: A positive dream about a friend to be meaningful than a positive dream about someone they disliked, for example, and were more likely to view a negative dream about a person they disliked as meaningful than a negative dream about a person they liked. According to surveys, it is common for people to feel their dreams are predicting subsequent life events. Psychologists have explained these experiences in terms of memory biases , namely

880-528: A result of observation of his dreams. Ignorant as he was, he could have come to no other conclusion but that, in dreams, he left his sleeping body in one universe and went wandering off into another. It is considered that, but for that savage, the idea of such a thing as a 'soul' would never have even occurred to mankind.... In the Mandukya Upanishad , part of the Veda scriptures of Indian Hinduism ,

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960-575: A rite of passage, fasting and praying until an anticipated guiding dream was received, to be shared with the rest of the tribe upon their return. Beginning in the late 19th century, Austrian neurologist Sigmund Freud , founder of psychoanalysis , theorized that dreams reflect the dreamer's unconscious mind and specifically that dream content is shaped by unconscious wish fulfillment. He argued that important unconscious desires often relate to early childhood memories and experiences. Carl Jung and others expanded on Freud's idea that dream content reflects

1040-465: A selective memory for accurate predictions and distorted memory so that dreams are retrospectively fitted onto life experiences. The multi-faceted nature of dreams makes it easy to find connections between dream content and real events. The term "veridical dream" has been used to indicate dreams that reveal or contain truths not yet known to the dreamer, whether future events or secrets. In one experiment, subjects were asked to write down their dreams in

1120-552: A sense of regaining control. Dream 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. The content and function of dreams have been topics of scientific, philosophical and religious interest throughout recorded history . Dream interpretation , practiced by

1200-524: A simulation for training social skills and bonds. Eagleman's and Vaughn's 2021 defensive activation theory, which says that, given the brain's neuroplasticity , dreams evolved as a visual hallucinatory activity during sleep's extended periods of darkness, busying the occipital lobe and thereby protecting it from possible appropriation by other, non-vision, sense operations. Erik Hoel proposes, based on artificial neural networks, that dreams prevent overfitting to past experiences; that is, they enable

1280-438: A subject attempted to identify which of five animal pictures a subject in another room was looking at. Their performance on this task was at chance, but when the scores were matched with the card that came after the target card, three of the thirteen subjects showed a very high hit rate; Rhine now described Soal's work as "a milestone in the field". However analyses of Soal's findings, conducted several years later, concluded that

1360-507: Is freed from the body during slumber to journey in a dream realm, while the other remained in the body. This belief and dream interpretation had been questioned since early times, such as by the philosopher Wang Chong (27–97  CE ). The Babylonians and Assyrians divided dreams into "good," which were sent by the gods, and "bad," sent by demons. A surviving collection of dream omens entitled Iškar Zaqīqu records various dream scenarios as well as prognostications of what will happen to

1440-414: Is high and resembles that of being awake. Because REM sleep is detectable in many species, and because research suggests that all mammals experience REM, linking dreams to REM sleep has led to conjectures that animals dream. However, humans dream during non-REM sleep, also, and not all REM awakenings elicit dream reports. To be studied, a dream must first be reduced to a verbal report, which is an account of

1520-514: Is popular with scientists exploring the mind–brain problem . Some "propose to reduce aspects of dream phenomenology to neurobiology." But current science cannot specify dream physiology in detail. Protocols in most nations restrict human brain research to non-invasive procedures. In the United States, invasive brain procedures with a human subject are allowed only when these are deemed necessary in surgical treatment to address medical needs of

1600-464: Is the true dream (al-ru’ya), then the false dream, which may come from the devil ( shaytan ), and finally, the meaningless everyday dream (hulm). This last dream could be brought forth by the dreamer's ego or base appetite based on what they experienced in the real world. The true dream is often indicated by Islam's hadith tradition. In one narration by Aisha , the wife of the Prophet, it is said that

1680-535: The Journal of Personality and Social Psychology . The paper was heavily criticised, and the criticism widened to include the journal itself and the validity of the peer-review process. In 2012, an independent attempt to reproduce Bem's results was published, but it failed to do so. The widespread controversy led to calls for improvements in practice and for more research. Claims of precognition are, like any other claims, open to scientific criticism. However,

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1760-473: The Babylonians in the third millennium BCE and even earlier by the ancient Sumerians , figures prominently in religious texts in several traditions, and has played a lead role in psychotherapy. The scientific study of dreams is called oneirology . Most modern dream study focuses on the neurophysiology of dreams and on proposing and testing hypotheses regarding dream function. It is not known where in

1840-652: The Book of Genesis , God granted Joseph precognition through prophetic dreams and the ability to interpret the dreams of others. Precognition has a role in Buddhism with dreams believed to be 'mind-created phenomena'. Those dreams which 'warn of impending danger or even prepare us for overwhelming good news" are considered the most important. Throughout history it has been believed that certain individuals have precognitive abilities, or that certain practices can induce such experiences, and these visions have sometimes been associated with important historical events. Despite

1920-539: The Latin prae- 'before', and cognitio 'acquiring knowledge') is the purported psychic phenomenon of seeing , or otherwise becoming directly aware of, events in the future. There is no accepted scientific evidence that precognition is a real effect, and it is widely considered to be pseudoscience . Precognition violates the principle of causality , that an effect cannot occur before its cause. Precognition has been widely believed in throughout history. Despite

2000-570: The Society for Neuroscience , "Because no adequate alternatives exist, much of this research must [sic] be done on animal subjects." However, since animal dreaming can be only inferred, not confirmed, animal studies yield no hard facts to illuminate the neurophysiology of dreams. Examining human subjects with brain lesions can provide clues, but the lesion method cannot discriminate between the effects of destruction and disconnection and cannot target specific neuronal groups in heterogeneous regions like

2080-819: The battle of the Milvian Bridge if he adopted the Chi-Rho as his battle standard ." In Buddhism, ideas about dreams are similar to the classical and folk traditions in South Asia. The same dream is sometimes experienced by multiple people, as in the case of the Buddha-to-be , before he is leaving his home . It is described in the Mahāvastu that several of the Buddha's relatives had premonitory dreams preceding this. Some dreams are also seen to transcend time:

2160-398: The 1980s. His survey of over 433 participants showed that 290 or 66.9 per cent reported some form of paranormal dream. He rejected many of these reports, but claimed that 8.8 per cent of the population was having actual precognitive dreams. In 2011 the psychologist Daryl Bem , a Professor Emeritus at Cornell University , published findings showing statistical evidence for precognition in

2240-605: The BBC Radio 4 broadcaster Francis Spufford revisited Priestley's work and its relation to the ideas of J.W. Dunne. In 1965 G. W. Lambert, a former Council member of the SPR, proposed five criteria that needed to be met before an account of a precognitive dream could be regarded as credible: David Ryback, a psychologist in Atlanta , used a questionnaire survey approach to investigate precognitive dreaming in college students during

2320-661: The Buddha-to-be has certain dreams that are the same as those of previous Buddhas , the Lalitavistara states. In Buddhist literature, dreams often function as a "signpost" motif to mark certain stages in the life of the main character. Buddhist views about dreams are expressed in the Pāli Commentaries and the Milinda Pañhā . In Chinese history, people wrote of two vital aspects of the soul of which one

2400-748: The Looking-Glass . Unlike many dream worlds, Carroll's logic is like that of actual dreams, with transitions and flexible causality. Other fictional dream worlds include the Dreamlands of H. P. Lovecraft 's Dream Cycle and The Neverending Story ' s world of Fantastica, which includes places like the Desert of Lost Dreams, the Sea of Possibilities and the Swamps of Sadness. Dreamworlds, shared hallucinations and other alternate realities feature in

2480-505: The Prophet's dreams would come true like the ocean's waves. Just as in its predecessors, the Quran also recounts the story of Joseph and his unique ability to interpret dreams. In both Christianity and Islam dreams feature in conversion stories. According to ancient authors, Constantine the Great started his conversion to Christianity because he had a dream which prophesied that he would win

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2560-543: The SPR to conduct a more formal experiment, but he and the Society's lead researcher Theodore Besterman failed to agree on the significance of the results. Nevertheless, the Philosopher C. D. Broad remarked that, "The only theory known to me which seems worth consideration is that proposed by Mr. Dunne in his Experiment with Time." An Experiment with Time was widely read and "undoubtedly helped to form something of

2640-488: The Solms 2000 paper that certified the separability of REM sleep and dream phenomena, many studies purporting to uncover the function of dreams have in fact been studying not dreams but measurable REM sleep. Theories of dream function since the identification of REM sleep include: Hobson's and McCarley's 1977 activation-synthesis hypothesis , which proposed "a functional role for dreaming sleep in promoting some aspect of

2720-597: The beliefs of the Hebrews and thought that dreams were of a supernatural character because the Old Testament includes frequent stories of dreams with divine inspiration. The most famous of these dream stories was Jacob's dream of a ladder that stretches from Earth to Heaven . Many Christians preach that God can speak to people through their dreams. The famous glossary, the Somniale Danielis , written in

2800-433: The best way to receive divine revelation, and thus they would induce (or "incubate") dreams. They went to sanctuaries and slept on special "dream beds" in hope of receiving advice, comfort, or healing from the gods. From a Darwinian perspective dreams would have to fulfill some kind of biological requirement, provide some benefit for natural selection to take place, or at least have no negative impact on fitness. Robert (1886),

2880-411: The brain dreams originate, if there is a single origin for dreams or if multiple regions of the brain are involved, or what the purpose of dreaming is for the body or mind. The human dream experience and what to make of it has undergone sizable shifts over the course of history. Long ago, according to writings from Mesopotamia and Ancient Egypt , dreams dictated post-dream behaviors to an extent that

2960-446: The brain involves significant neural activity downstream from eye intake, and it is theorized that "the visual imagery of dreams is produced by activation during sleep of the same structures that generate complex visual imagery in waking perception." Dreams present a running narrative rather than exclusively visual imagery. Following their work with split-brain subjects, Gazzaniga and LeDoux postulated, without attempting to specify

3040-467: The brain stem. Denied precision tools and obliged to depend on imaging, much dream research has succumbed to the law of the instrument . Studies detect an increase of blood flow in a specific brain region and then credit that region with a role in generating dreams. But pooling study results has led to the newer conclusion that dreaming involves large numbers of regions and pathways, which likely are different for different dream events. Image creation in

3120-647: The brain's effort to make sense of sparse and distorted information.... The cortex combines this haphazard input with whatever other activity was already occurring and does its best to synthesize a story that makes sense of the information." Neuroscientist Indre Viskontas is even more blunt, calling often bizarre dream content "just the result of your interpreter trying to create a story out of random neural signaling." For many humans across multiple eras and cultures, dreams are believed to have functioned as revealers of truths sourced during sleep from gods or other external entities. Ancient Egyptians believed that dreams were

3200-408: The conscious mind. Manuel Sans Segarra also talks about the superconcious as "a form of consciousness that goes further than the body and mind and it can exist in a state of superposition and interlink with other forms of consciousness in the universe". This parapsychology -related article is a stub . You can help Misplaced Pages by expanding it . Precognition Precognition (from

3280-402: The dreamer to learn from novel situations. Dreams figure prominently in major world religions. The dream experience for early humans, according to one interpretation, gave rise to the notion of a human " soul ," a central element in much religious thought. J. W. Dunne wrote: But there can be no reasonable doubt that the idea of a soul must have first arisen in the mind of primitive man as

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3360-501: The dreamer's unconscious desires. Dream interpretation can be a result of subjective ideas and experiences. One study found that most people believe that "their dreams reveal meaningful hidden truths". The researchers surveyed students in the United States, South Korea, and India, and found that 74% of Indians, 65% of South Koreans and 56% of Americans believed their dream content provided them with meaningful insight into their unconscious beliefs and desires. This Freudian view of dreaming

3440-485: The dreamer, Aristotle proposed that it was, rather, the dreamer's sense impressions which reached forward to the event. The term "precognition" first appeared in the 17th century but did not come into common use among investigators until much later. An early investigation into claims of precognition was published by the missionary Fr. P. Boilat in 1883. He claimed to have put an unspoken question to an African witch-doctor whom he mistrusted. Contrary to his expectations,

3520-530: The dreamer. Freud wrote that dreams "serve the purpose of prolonging sleep instead of waking up. Dreams are the GUARDIANS of sleep and not its disturbers. " A turning point in theorizing about dream function came in 1953, when Science published the Aserinsky and Kleitman paper establishing REM sleep as a distinct phase of sleep and linking dreams to REM sleep. Until and even after publication of

3600-436: The dreamers, where they entered through a keyhole, exiting the same way after the divine message was given. Antiphon wrote the first known Greek book on dreams in the 5th century BCE. In that century, other cultures influenced Greeks to develop the belief that souls left the sleeping body. The father of modern medicine, Hippocrates (460–375  BCE ), thought dreams could analyze illness and predict diseases. For instance,

3680-552: The experience of the world that can be interpreted and from which lessons can be garnered. It is discussed in the Talmud, Tractate Berachot 55–60. The ancient Hebrews connected their dreams heavily with their religion, though the Hebrews were monotheistic and believed that dreams were the voice of one God alone. Hebrews also differentiated between good dreams (from God) and bad dreams (from evil spirits). The Hebrews, like many other ancient cultures, incubated dreams in order to receive

3760-456: The experiment on themselves, with mixed results. He noted a strong cognitive bias in which subjects, including himself, were reluctant to ascribe their dream correspondences to precognition and determinedly sought alternative explanations. Dunne concluded that precognitive elements in dreams are common and that many people unknowingly have them. He suggested also that dream precognition did not reference future events of all kinds, but specifically

3840-414: The future experiences of the dreamer. He was led to this idea when he found that a dream of a volcanic eruption appeared to foresee not the disaster itself but his subsequent misreading of an inaccurate account in a newspaper. Edith Lyttelton , who became President of the Society for Psychical Research (SPR), regarded his theory as consistent with her own idea of the superconscious . In 1932 he helped

3920-558: The future. Such claims of seeing the future have never been without their sceptical critics. Aristotle carried out an inquiry into allegedly prophetic dreams in his On Divination in Sleep . He accepted that "it is quite conceivable that some dreams may be tokens and causes [of future events]" but also believed that "most [so-called prophetic] dreams are, however, to be classed as mere coincidences ...". Where Democritus had suggested that emanations from future events could be sent back to

4000-647: The grave as amongst trees. The first ongoing and organised research program on precognition was instituted by husband-and-wife team Joseph Banks Rhine and Louisa E. Rhine in the 1930s at Duke University 's Parapsychology Laboratory . J. B. Rhine used a method of forced-choice matching in which participants guessed the order of a deck of 25 cards, each five of which bore one of five geometrical symbols. Although his results were positive and gained some academic acceptance, his methods were later shown to be badly flawed and subsequent researchers using more rigorous procedures were unable to reproduce his results. His mathematics

4080-515: The idea in some of his novels, especially as a central plot element in his 1956 science fiction short story " The Minority Report " and in his 1956 novel The World Jones Made . In 1963 the BBC television programme Monitor broadcast an appeal by the writer J.B. Priestley for experiences which challenged our understanding of Time. He received hundreds of letters in reply and believed that many of them described genuine precognitive dreams. In 2014

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4160-437: The imaginative climate of [the interwar] years", influencing many writers of both fact and fiction both then and since. According to Flieger, "Dunne's theory was so current and popular a topic that not to understand it was a mark of singularity." Major writers whose work was significantly influenced by his ideas on precognition in dreams and visions include H. G. Wells , J. B. Priestley and Olaf Stapledon . Vladimir Nabokov

4240-616: The king of the Sumerian city-state of Lagash (reigned c. 2144–2124 BCE), rebuilt the temple of Ningirsu as the result of a dream in which he was told to do so. After antiquity, the passive hearing of visitation dreams largely gave way to visualized narratives in which the dreamer becomes a character who actively participates. From the 1940s to 1985, Calvin S. Hall collected more than 50,000 dream reports at Western Reserve University . In 1966, Hall and Robert Van de Castle published The Content Analysis of Dreams , in which they outlined

4320-581: The lack of scientific evidence, many people believe it to be real; it is still widely reported and remains a topic of research and discussion within the parapsychology community. Precognition is sometimes treated as an example of the wider phenomenon of prescience or foreknowledge, to understand by any means what is likely to happen in the future. It is distinct from premonition, which is a vaguer feeling of some impending disaster. Related activities such as predictive prophecy and fortune telling have been practised throughout history. Precognitive dreams are

4400-498: The lack of scientific evidence, many people still believe in precognition. A poll in 2005 showed 73% of Americans believe in at least one type of paranormal experience, with 41% believing in extrasensory perception . Since ancient times precognition has been associated with dreams and trance states as well as waking premonitions, giving rise to acts of prophecy and fortune telling. Oracles , originally seen as sources of wisdom, became progressively associated with previsions of

4480-439: The learning process...." In 2010 a Harvard study was published showing experimental evidence that dreams were correlated with improved learning. Crick's and Mitchison's 1983 " reverse learning " theory, which states that dreams are like the cleaning-up operations of computers when they are offline, removing (suppressing) parasitic nodes and other "junk" from the mind during sleep. Hartmann's 1995 proposal that dreams serve

4560-458: The mid-1990s by his protégé William Domhoff . More recent studies of dream reports, while providing more detail, continue to cite the Hall study favorably. In the Hall study, the most common emotion experienced in dreams was anxiety . Other emotions included abandonment , anger , fear , joy , and happiness . Negative emotions were much more common than positive ones. The Hall data analysis showed that sexual dreams occur no more than 10% of

4640-466: The most widely reported occurrences of precognition. Usually, a dream or vision can only be identified as precognitive after the putative event has taken place. When such an event occurs after a dream, it is said to have "broken the dream". In Judaism it is believed that dreams are mostly insignificant while others "have the potential to contain prophetic messages". Others hold that dreams have meaning, and bad dreams require amelioration . According to

4720-518: The name of Daniel , attempted to teach Christian populations to interpret their dreams. Iain R. Edgar has researched the role of dreams in Islam . He has argued that dreams play an important role in the history of Islam and the lives of Muslims, since dream interpretation is the only way that Muslims can receive revelations from God since the death of the last prophet, Muhammad . According to Edgar, Islam classifies three types of dreams. Firstly, there

4800-594: The narrative; The Book of the Duchess and The Vision Concerning Piers Plowman are two such dream visions . Even before them, in antiquity, the same device had been used by Cicero and Lucian of Samosata . Dreams have also featured in fantasy and speculative fiction since the 19th century. One of the best-known dream worlds is Wonderland from Lewis Carroll 's Alice's Adventures in Wonderland , as well as Looking-Glass Land from its sequel, Through

4880-449: The nature of the criticism must adapt to the nature of the claim. Claims of precognition are criticised on three main grounds: Consequently, precognition is widely considered to be pseudoscience . Precognition would violate the principle of antecedence ( causality ); that is, that an effect does not happen before its cause. Information passing backwards in time ( retrocausality ) would need to be carried by physical particles doing

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4960-411: The neural mechanisms, a " left-brain interpreter " that seeks to create a plausible narrative from whatever electro-chemical signals reach the brain's left hemisphere. Sleep research has determined that some brain regions fully active during waking are, during REM sleep, activated only in a partial or fragmentary way. Drawing on this knowledge, textbook author James W. Kalat explains, "[A] dream represents

5040-433: The night before flying (while awake), and that they would be as likely to miss their flight if they dreamt of their plane crashing the night before their flight as if there was an actual plane crash on the route they intended to take. Participants in the study were more likely to perceive dreams to be meaningful when the content of dreams was in accordance with their beliefs and desires while awake. They were more likely to view

5120-632: The person who experiences each dream, apparently based on previous cases. Some list different possible outcomes, based on occasions in which people experienced similar dreams with different results. The Greeks shared their beliefs with the Egyptians on how to interpret good and bad dreams, and the idea of incubating dreams. Morpheus , the Greek god of dreams, also sent warnings and prophecies to those who slept at shrines and temples. The earliest Greek beliefs about dreams were that their gods physically visited

5200-644: The phenomenon. Even the most prominent pieces of evidence have been repeatedly rejected due to errors in those experiments as well as follow-on studies contradicting the original evidence. This suggests that the evidence was not valid in the first place. Various known psychological processes have been put forward to explain experiences of apparent precognition. These include: Psychological explanations have also been proposed for belief in precognition. Psychologists have conducted experiments which are claimed to show that people who feel loss of control in their lives will turn to belief in precognition, because it gives them

5280-540: The positive results were more likely the result of deliberate fraud. The controversy continued for many years more. In 1978 the statistician and parapsychology researcher Betty Markwick, while seeking to vindicate Soal, discovered that he had tampered with his data. The untainted experimental results showed no evidence of precognition. As more modern technology became available, more automated techniques of experimentation were developed that did not rely on hand-scoring of equivalence between targets and guesses, and in which

5360-407: The same human subject. Non-invasive measures of brain activity like electroencephalogram (EEG) voltage averaging or cerebral blood flow cannot identify small but influential neuronal populations. Also, fMRI signals are too slow to explain how brains compute in real time. Scientists researching some brain functions can work around current restrictions by examining animal subjects. As stated by

5440-550: The same. Experimental evidence from high-energy physics suggests that this cannot happen. There is therefore no direct justification for precognition from a physics-based approach. Precognition would also contradict "most of the neuroscience and psychology literature, from electrophysiology and neuroimaging to temporal effects found in psychophysical research." A great deal of evidence for precognition has been put forward, both as witnessed anecdotes and as experimental results, but none has been accepted as rigorous scientific proof of

5520-519: The sleeper's eyelids were closed. Marcus Tullius Cicero , for his part, believed that all dreams are produced by thoughts and conversations a dreamer had during the preceding days. Cicero's Somnium Scipionis described a lengthy dream vision, which in turn was commented on by Macrobius in his Commentarii in Somnium Scipionis . Herodotus in his The Histories , writes "The visions that occur to us in dreams are, more often than not,

5600-579: The subject's memory of the dream, not the subject's dream experience itself. So, dreaming by non-humans is currently unprovable, as is dreaming by human fetuses and pre-verbal infants. Preserved writings from early Mediterranean civilizations indicate a relatively abrupt change in subjective dream experience between Bronze Age antiquity and the beginnings of the classical era . In visitation dreams reported in ancient writings, dreamers were largely passive in their dreams, and visual content served primarily to frame authoritative auditory messaging. Gudea ,

5680-987: The successful predictions than unsuccessful ones. Graphic artists, writers and filmmakers all have found dreams to offer a rich vein for creative expression. In the West, artists' depictions of dreams in Renaissance and Baroque art often were related to Biblical narrative. Especially preferred by visual artists were the Jacob's Ladder dream in Genesis and St. Joseph's dreams in the Gospel according to Matthew . Many later graphic artists have depicted dreams, including Japanese woodblock artist Hokusai (1760–1849) and Western European painters Rousseau (1844–1910), Picasso (1881–1973), and Dalí (1904–1989). In literature, dream frames were frequently used in medieval allegory to justify

5760-481: The superconscious was William Walker Atkinson , an American occultist and prolific author of the late 19th and early 20th centuries. The idea was expanded on by British novelist, playwright, World War I-era activist and spiritualist Edith Lyttelton . More recently, Popov et al. suggested that the superconscious is the source of creative and intuitive thought as well as spirituality, and that it arises from holistic brain activity, processing much more information than

5840-616: The targets could be more reliably and readily tested at random. In 1969 Helmut Schmidt introduced the use of high-speed random event generators (REG) for precognition testing, and experiments were also conducted at the Princeton Engineering Anomalies Research Lab . Once again, flaws were found in all of Schmidt's experiments, when the psychologist C. E. M. Hansel found that several necessary precautions were not taken. SF writer Philip K Dick believed that he had precognitive experiences and used

5920-504: The things we have been concerned about during the day." The Dreaming is a common term within the animist creation narrative of indigenous Australians for a personal, or group, creation and for what may be understood as the "timeless time" of formative creation and perpetual creating. Some Indigenous American tribes and Mexican populations believe that dreams are a way of visiting and having contact with their ancestors . Some Native American tribes have used vision quests as

6000-491: The time and are more prevalent in young to mid-teens. Another study showed that 8% of both men's and women's dreams have sexual content. In some cases, sexual dreams may result in orgasms or nocturnal emissions . These are colloquially known as "wet dreams". The visual nature of dreams is generally highly phantasmagoric; that is, different locations and objects continuously blend into each other. The visuals (including locations, people, and objects) are generally reflective of

6080-578: The witch-doctor gave him the correct answer without ever having heard the question. In the early 20th century J. W. Dunne , a British soldier and aeronautics engineer, experienced several dreams which he regarded as precognitive. He developed techniques to record and analyse them, identifying any correspondences between his future experiences and his recorded dreams. He reported his findings in his 1927 book An Experiment with Time . In it he alleges that 10% of his dreams appeared to include some element of future experience. He also persuaded some friends to try

6160-414: Was also later influenced by Dunne. In 1932 Charles Lindbergh 's infant son was kidnapped, murdered and buried among trees. Psychologists Henry Murray and D. R. Wheeler used the event to test for dream precognition, by inviting the public to report any dreams of the child. A total of 1,300 dreams were reported. Only five per cent envisioned the child dead and only 4 of the 1,300 envisioned the location of

6240-486: Was believed significantly more than theories of dreaming that attribute dream content to memory consolidation, problem-solving, or as a byproduct of unrelated brain activity. The same study found that people attribute more importance to dream content than to similar thought content that occurs while they are awake. Americans were more likely to report that they would intentionally miss their flight if they dreamt of their plane crashing than if they thought of their plane crashing

6320-460: Was sharply reduced in later millennia. These ancient writings about dreams highlight visitation dreams, where a dream figure, usually a deity or a prominent forebear, commands the dreamer to take specific actions, and which may predict future events. Framing the dream experience varies across cultures as well as through time. Dreaming and sleep are intertwined. Dreams occur mainly in the rapid-eye movement (REM) stage of sleep —when brain activity

6400-444: Was sometimes flawed, the experiments were not double-blinded or even necessarily single-blinded and some of the cards to be guessed were so thin that the symbol could be seen through the backing. Samuel G. Soal , another leading member of the SPR, was described by Rhine as one of his harshest critics, running many similar experiments with wholly negative results. However, from around 1940 he ran forced-choice ESP experiments in which

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