|
Entoptic Phenomena (archaeology)
In archaeology, the term entoptic phenomena relates to visual experiences derived from within the eye or brain (as opposed to externally, as in normal vision). In this respect they differ slightly from the medical definition, which defines entoptic phenomena as only applying to sources within the eye, not the brain. To avoid this confusion, the term subjective visual phenomena is sometimes used. ''Entoptic'' was chosen by author David Lewis-Williams due to its origin from Greek meaning "coming from within".Lewis-Williams 2002, p. 127. There has been a great deal of work trying to find evidence of motifs and compositions derived from entoptic phenomena in prehistoric art, especially rock art and megalithic art. The justification of this research is that entoptic phenomena normally occur during states of altered consciousness, the practice of which may affect our views of ancient religious and social practice. The importance of looking outside traditional methods of research for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mimbres Red On White Cantor
Mimbres may refer to: * Mimbres culture (c. 1100–1150 CE), a subdivision of Mogollon culture * Mimbres pottery, a particular style of pottery decoration from the Mimbres culture * Mimbres Valley AVA, an American Viticultural Area in southwestern New Mexico * Mimbres River, a river in New Mexico * Mimbres Mountains, the southernmost part of the Black Range * Chiricahua#Bands , Mlimbres Apaches, a band of the Chiricahua Apaches of the Southwestern US. {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somatic Symptom Disorder
A somatic symptom disorder, formerly known as a somatoform disorder,(2013) dsm5.org. Retrieved April 8, 2014. is any mental disorder that manifests as physical symptoms that suggest illness or injury, but cannot be explained fully by a general medical condition or by the direct effect of a substance, and are not attributable to another mental disorder (e.g., panic disorder). Somatic symptom disorders, as a group, are included in a number of diagnostic schemes of mental illness, including the ''Diagnostic and Statistical Manual of Mental Disorders''. (Before DSM-5 this disorder was split into ''somatization disorder'' and ''undifferentiated somatoform disorder''.) In people who have been diagnosed with a somatic symptom disorder, medical test results are either normal or do not explain the person's symptoms (medically unexplained physical symptoms), and history and physical examination do not indicate the presence of a known medical condition that could cause them, though the DSM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consciousness And The Origins Of Art
Consciousness, at its simplest, is sentience and awareness of internal and external existence. However, the lack of definitions has led to millennia of analyses, explanations and debates by philosophers, theologians, linguisticians, and scientists. Opinions differ about what exactly needs to be studied or even considered consciousness. In some explanations, it is synonymous with the mind, and at other times, an aspect of mind. In the past, it was one's "inner life", the world of introspection, of private thought, imagination and volition. Today, it often includes any kind of cognition, experience, feeling or perception. It may be awareness, awareness of awareness, or self-awareness either continuously changing or not. The disparate range of research, notions and speculations raises a curiosity about whether the right questions are being asked. Examples of the range of descriptions, definitions or explanations are: simple wakefulness, one's sense of selfhood or soul explored ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychedelic Art
Psychedelic art (also known as psychedelia) is art, graphics or visual displays related to or inspired by psychedelic experiences and hallucinations known to follow the ingestion of psychedelic drugs such as LSD, psilocybin, and DMT. The word "psychedelic" (coined by British psychologist Humphry Osmond) means "mind manifesting". By that definition, all artistic efforts to depict the inner world of the psyche may be considered "psychedelic". In common parlance "psychedelic art" refers above all to the art movement of the late 1960s counterculture, featuring highly distorted or surreal visuals, bright colors and full spectrums and animation (including cartoons) to evoke, convey, or enhance psychedelic experiences. Psychedelic visual arts were a counterpart to psychedelic rock music. Concert posters, album covers, liquid light shows, liquid light art, murals, comic books, underground newspapers and more reflected not only the kaleidoscopically swirling colour patterns of LSD hal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphene
A phosphene is the phenomenon of seeing light without light entering the eye. The word ''phosphene'' comes from the Greek words ''phos'' (light) and ''phainein'' (to show). Phosphenes that are induced by movement or sound may be associated with optic neuritis. Phosphenes can be induced by mechanical, electrical, or magnetic stimulation of the retina or visual cortex, or by random firing of cells in the visual system. Phosphenes have also been reported by meditators (called '' nimitta''), people who endure long periods without visual stimulation (the prisoner's cinema), or those who ingest psychedelic drugs. Causes Mechanical stimulation The most common phosphenes are pressure phosphenes, caused by rubbing or applying pressure on or near the closed eyes. They have been known since antiquity, and described by the Greeks. The pressure mechanically stimulates the cells of the retina. Experiences include a darkening of the visual field that moves against the rubbing, a diffus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Illusions
Within visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual percept that arguably appears to differ from reality. Illusions come in a wide variety; their categorization is difficult because the underlying cause is often not clear but a classification proposed by Richard Gregory is useful as an orientation. According to that, there are three main classes: physical, physiological, and cognitive illusions, and in each class there are four kinds: Ambiguities, distortions, paradoxes, and fictions. A classical example for a physical distortion would be the apparent bending of a stick half immerged in water; an example for a physiological paradox is the motion aftereffect (where, despite movement, position remains unchanged). An example for a physiological fiction is an afterimage. Three typical cognitive distortions are the Ponzo, Poggendorff, and Müller-Lyer illusion. Physical illusions are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entheogen
Entheogens are psychoactive substances that induce alterations in perception, mood (psychology), mood, consciousness, cognition, or behavior for the purposes of engendering spiritual development or otherwiseRätsch, Christian, ''The Encyclopedia of Psychoactive Plants: Ethnopharmacology and Its Applications'' pub. Park Street Press 2005 in sacred contexts. Anthropological study has established that entheogens are used for religion, religious, Magic (supernatural), magical, shamanism, shamanic, or spirituality, spiritual purposes in many parts of the world. Entheogens have traditionally been used to supplement many diverse practices geared towards achieving Transcendence (religion), transcendence, including divination, meditation, yoga, sensory deprivation, healings, asceticism, prayer, trance, rituals, chanting, Imitation of sounds in shamanism, imitation of sounds, hymns like peyote songs, Drum circle, drumming, and ecstatic dance. The Psychedelic drug, psychedelic experience ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consciousness
Consciousness, at its simplest, is sentience and awareness of internal and external existence. However, the lack of definitions has led to millennia of analyses, explanations and debates by philosophers, theologians, linguisticians, and scientists. Opinions differ about what exactly needs to be studied or even considered consciousness. In some explanations, it is synonymous with the mind, and at other times, an aspect of mind. In the past, it was one's "inner life", the world of introspection, of private thought, imagination and volition. Today, it often includes any kind of cognition, experience, feeling or perception. It may be awareness, awareness of awareness, or self-awareness either continuously changing or not. The disparate range of research, notions and speculations raises a curiosity about whether the right questions are being asked. Examples of the range of descriptions, definitions or explanations are: simple wakefulness, one's sense of selfhood or sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallucination
A hallucination is a perception in the absence of an external stimulus that has the qualities of a real perception. Hallucinations are vivid, substantial, and are perceived to be located in external objective space. Hallucination is a combination of 2 conscious states of brain wakefulness and REM sleep. They are distinguishable from several related phenomena, such as dreaming ( REM sleep), which does not involve wakefulness; pseudohallucination, which does not mimic real perception, and is accurately perceived as unreal; illusion, which involves distorted or misinterpreted real perception; and mental imagery, which does not mimic real perception, and is under voluntary control. Hallucinations also differ from "delusional perceptions", in which a correctly sensed and interpreted stimulus (i.e., a real perception) is given some additional significance. Many hallucinations happen also during sleep paralyses. Hallucinations can occur in any sensory modality—visual, auditory, olfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Lewis-Williams
James David Lewis-Williams (born 1934) is a South African archaeologist. He is best known for his research on southern African San (Bushmen) rock art, of which it can be said that he found a 'Rosetta Stone'. He is the founder and previous director of the Rock Art Research Institute and is currently professor emeritus of cognitive archaeology at the University of the Witwatersrand (WITS). Lewis-Williams is recognised by the National Research Foundation (South Africa), National Research Foundation (NRF) of South Africa as a leading international researcher, with an A1 rating. Theoretical influences Lewis-Williams was exposed to social anthropology as an undergraduate at UCT. During this time he received lectures from renowned social anthropologist A. R. Radcliffe-Brown (who started the department of social anthropology at UCT in 1920 but later returned as a visiting lecturer) and Monica Wilson, a student of Bronislaw Malinowski. Malinowski’s ideas specifically concerning the ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychotropic
A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. These substances may be used medically, recreationally or spiritually to a. Purposefully improve one’s perceived performance b. Alter one's consciousness (such as with entheogens for ritual, spiritual or shamanic purposes) or c. For research. Some categories of psychoactive drugs - which are believed, by some, to have therapeutic value - may be prescribed by some physicians and other healthcare practitioners. Examples of medication categories that may contain potentially beneficial psychoactive drugs include, but are not limited to: # Anesthetics # Analgesics # Anticonvulsants # Anti-Parkinson’s medications # Medications used to treat Neuropsychiatric Disorders a. Antidepressants b. Anxiolytics c. Antipsychotics d. Sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
