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Synesthesia
Synesthesia (American English) or synaesthesia (British English) is a perceptual phenomenon in which stimulation of one sensory or cognitive pathway leads to involuntary experiences in a second sensory or cognitive pathway. People with synesthesia may experience colors when listening to music, see shapes when smelling certain scents, or perceive tastes when looking at words. People who report a lifelong history of such experiences are known as synesthetes. Awareness of synesthetic perceptions varies from person to person with the perception of synesthesia differing based on an individual's unique life experiences and the specific type of synesthesia that they have. In one common form of synesthesia, known as grapheme–color synesthesia or color–graphemic synesthesia, letters or numbers are perceived as inherently colour, colored. In spatial-sequence, or number form synesthesia, numbers, months of the year, or days of the week elicit precise locations in space (''e.g.,'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Cytowic
Richard E. Cytowic is an American neurologist and author who rekindled interest in synesthesia in the 1980s and returned it to mainstream science. He was nominated for the Pulitzer Prize for his ''New York Times Magazine'' cover story about James Brady, the Presidential Press Secretary shot in the brain during the assassination attempt on President Reagan. Cytowic’s writing ranges from textbooks and music reviews, to his ''Metro Weekly'' "Love Doctor" essays and brief medical biographies of Anton Chekhov, Maurice Ravel and Virginia Woolf. His work is the subject of two BBC Horizon documentaries, “Orange Sherbert Kisses” (1994) and “Derek Tastes of Earwax” (2014). In '' Musicophilia'', Oliver Sacks writes: In the 1980, Richard Cytowic made the first neurophysiological studies of synesthetic subjects... In 1989, he published a pioneering text, ''Synesthesia: A Union of the Senses'', and this was followed by a popular exploration of the subject in 1993, '' The Man Who T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromesthesia
Chromesthesia or sound-to-color synesthesia is a type of synesthesia in which sound involuntarily evokes an experience of color, shape, and movement. Individuals with sound-color synesthesia are consciously aware of their synesthetic color associations/perceptions in daily life. Synesthetes that perceive color while listening to music experience the colors in addition to the normal auditory sensations. The synesthetic color experience supplements, but does not obscure real, Modality (Semiotics), modality-specific perceptions. As with other forms of synesthesia, individuals with sound-color synesthesia perceive it spontaneously, without effort, and as their normal realm of experience. Chromesthesia can be induced by different auditory experiences, such as music, phonemes, speech, and/or everyday sounds. Individual variance The color associations, that is, which color is associated to which sound, tone, pitch, or timbre is highly idiosyncratic, but in most cases, consistent over tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grapheme–color Synesthesia
Grapheme–color synesthesia or colored grapheme synesthesia is a form of synesthesia in which an individual's perception of numerals and letters is associated with the experience of colors. Like all forms of synesthesia, grapheme–color synesthesia is involuntary, consistent and memorable. Grapheme–color synesthesia is one of the most common forms of synesthesia and, because of the extensive knowledge of the visual system, one of the most studied. While it is extremely unlikely that any two synesthetes will report the same colors for all letters and numbers, studies of large numbers of synesthetes find that there are some commonalities across letters (e.g., "A" is likely to be red).Day, S.A. (2005), "Some Demographic and Socio-cultural Aspects of Synesthesia" in L. Robertson & N. Sagiv, ed., ''Synesthesia: Perspectives from Cognitive Neuroscience'', Oxford: Oxford University Press, , pp. 11–33 Early studies argued that grapheme–color synesthesia was not due to associative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colour
Color (or colour in Commonwealth English; see spelling differences) is the visual perception based on the electromagnetic spectrum. Though color is not an inherent property of matter, color perception is related to an object's light absorption, emission, reflection and transmission. For most humans, colors are perceived in the visible light spectrum with three types of cone cells ( trichromacy). Other animals may have a different number of cone cell types or have eyes sensitive to different wavelengths, such as bees that can distinguish ultraviolet, and thus have a different color sensitivity range. Animal perception of color originates from different light wavelength or spectral sensitivity in cone cell types, which is then processed by the brain. Colors have perceived properties such as hue, colorfulness (saturation), and luminance. Colors can also be additively mixed (commonly used for actual light) or subtractively mixed (commonly used for materials). If the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASMR
An autonomous sensory meridian response (ASMR)Marsden, Rhodri (20 July 2012), ''The Independent''. is a tingling sensation that usually begins on the scalp and moves down the back of the neck and upper spine. A pleasant form of paresthesia, it has been compared with auditory-tactile synesthesia and may overlap with frisson. ASMR is a subjective experience of "low-grade euphoria" characterized by "a combination of positive feelings and a distinct static-like tingling sensation on the skin". It is most commonly triggered by specific auditory stimuli, and less commonly by intentional attention control and visual stimuli. The term ASMR can also refer to media (usually audiovisual) meant to evoke this phenomenon, with the sensation itself being informally referred to as "tingles". Etymology Although many colloquial and formal terms used and proposed between 2007 and 2010 included reference to orgasm, a significant majority objected to its use among those active in online discussi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Number Form
A number form is a mental map of numbers, which automatically and involuntarily appears whenever someone who experiences number-forms thinks of numbers. Numbers are mapped into distinct spatial locations and the mapping may be different across individuals. Number forms were first documented and named by Sir Francis Galton in his ''The Visions of Sane Persons''. Later research has identified them as a type of synesthesia. Neural mechanisms It has been suggested that number-forms are a result of cross-activation between regions of the parietal lobe that are involved in numerical cognition and angular gyrus for spatial cognition. Since the areas that process numerical and spatial representations are close to each other, this may contribute to the increased cross-activation. Synesthetes display larger P3b amplitudes for month cues compared to non-synesthetes, but similar N1 and P3b responses for arrow (← or →) and word (left or right) cues. Reaction time research Reac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solomon Shereshevsky
Solomon Veniaminovich Shereshevsky (; 1886 – 1 May 1958), also known simply as 'Ш' ('Sh'), 'S.', or Luria's S, was a Soviet journalist and mnemonist active in the 1920s. He was the subject of Alexander Luria's case study ''The Mind of a Mnemonist'' (1968). Studies Shereshevsky participated in many psychological studies, most of them carried out by the neuropsychologist Alexander Luria over a thirty-year time span. He met Luria after an anecdotal event in which he was scolded for not taking any notes while attending a work meeting in the mid-1920s. To the astonishment of everyone there (and to his own astonishment in realizing that others could apparently not do so), he could recall the speech word for word. Throughout his life, Shereshevsky was tasked with memorizing complex mathematical formulas, huge matrices, and even poems in foreign languages that he had never spoken before, all of which he would memorize with meticulous accuracy in a matter of minutes. On the basis of h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscilloscope
An oscilloscope (formerly known as an oscillograph, informally scope or O-scope) is a type of electronic test instrument that graphically displays varying voltages of one or more signals as a function of time. Their main purpose is capturing information on electrical signals for debugging, analysis, or characterization. The displayed waveform can then be analyzed for properties such as amplitude, frequency, rise time, time interval, distortion, and others. Originally, calculation of these values required manually measuring the waveform against the scales built into the screen of the instrument. Modern digital instruments may calculate and display these properties directly. Oscilloscopes are used in the sciences, engineering, biomedical, automotive and the telecommunications industry. General-purpose instruments are used for maintenance of electronic equipment and laboratory work. Special-purpose oscilloscopes may be used to analyze an automotive ignition system or to display th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scintillation (physics)
In condensed matter physics, scintillation ( ) is the physical process where a material, called a scintillator, emits ultraviolet or visible light under excitation from high energy photons (X-rays or gamma rays) or energetic particles (such as electrons, alpha particles, neutrons, or ions). See scintillator and scintillation counter for practical applications. Overview Scintillation is an example of luminescence, whereby light of a characteristic spectrum is emitted following the absorption of radiation. The scintillation process can be summarized in three main stages: conversion, transport and energy transfer to the luminescence center, and luminescence. The emitted radiation is usually less energetic than the absorbed radiation, hence scintillation is generally a down-conversion process. Conversion processes The first stage of scintillation, conversion, is the process where the energy from the incident radiation is absorbed by the scintillator and highly energetic el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Liszt
Franz Liszt (22 October 1811 – 31 July 1886) was a Hungarian composer, virtuoso pianist, conductor and teacher of the Romantic music, Romantic period. With a diverse List of compositions by Franz Liszt, body of work spanning more than six decades, he is considered to be one of the most prolific and influential composers of his era, and his piano works continue to be widely performed and recorded. Liszt achieved success as a concert pianist from an early age, and received lessons from the esteemed musicians Carl Czerny and Antonio Salieri. He gained further renown for his performances during tours of Europe in the 1830s and 1840s, developing a reputation for technical brilliance as well as physical attractiveness. In a phenomenon dubbed "Lisztomania", he rose to a degree of stardom and popularity among the public not experienced by the virtuosos who preceded him. During this period and into his later life, Liszt was a friend, musical promoter and benefactor to many composer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
