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Biofield Therapies
Biofield may refer to: Alternative medicine *Energy (esotericism), biopsychospiritual energy ** Aura (paranormal) ** Prana ** Qi ** Vital energy * Energy medicine, alternative medicine ** Energy field disturbance ** Ionized jewelry ** Magnet therapy ** Negative air ionization therapy ** Qigong ** Radionics ** Reiki Medicine * Electrophysiology, scientific study of electrical properties of cells and tissues ** Electroreception, sensory of electric fields by organisms ** Magnetoception, sensory of magnetic fields by organisms ** Bioelectromagnetics, scientific study of electric biofields of organisms * Medical imaging, scientific magnetic or electrical biofield imaging ** Magnetoencephalography, brain imaging by magnetic field sensing ** Electroencephalography, brain imaging by electric field sensing ** Magnetocardiography, heart imaging by sensing its magnetic field ** Magnetogastrography Magnetogastrography is the science of recording magnetogastrograms (MGGs). Magnetogastr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy (esotericism)
Proponents and practitioners of various esoteric forms of spirituality and alternative medicine refer to a variety of claimed experiences and phenomena as being due to "energy" or "force" that defy measurement or experimentation, and thus are distinct from uses of the term "energy" in science. Claims related to energy therapies are most often anecdotal, rather than being based on repeatable empirical evidence, thus not following the scientific method. There is no scientific evidence for the existence of such energy, and physics educators criticize the use of the term "energy" to describe ideas in esotericism and spirituality as unavoidably confusing. History The concept of esoteric energy has appeared in various cultures and spiritual traditions throughout history. Although interpretations differ, many traditions describe it as a vital force that animates living beings and permeates the cosmos. These ideas often overlap with religious, medical, and mystical frameworks, inf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrophysiology
Electrophysiology (from [see the Electron#Etymology, etymology of "electron"]; ; and ) is the branch of physiology that studies the electrical properties of biological cell (biology), cells and tissues. It involves measurements of voltage changes or electric current or manipulations on a wide variety of scales from single ion channel proteins to whole organs like the heart. In neuroscience, it includes measurements of the electrical activity of neurons, and, in particular, action potential activity. Recordings of large-scale electric signals from the nervous system, such as electroencephalography, may also be referred to as electrophysiological recordings. They are useful for electrodiagnostic medicine, electrodiagnosis and monitoring (medicine), monitoring. Definition and scope Classical electrophysiological techniques Principle and mechanisms Electrophysiology is the branch of physiology that pertains broadly to the flow of ions (ion current) in biological tissues and, in p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetogastrography
Magnetogastrography is the science of recording magnetogastrograms (MGGs). Magnetogastrograms are recordings of magnetic fields resulting from electrical currents in the stomach. The magnetic fields are typically recorded using SQUIDs. See also * Electrogastrogram * Magnetoencephalography External links Gastrointestinal SQUID Technology Laboratory at Vanderbilt University Medical imaging {{med-imaging-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetocardiography
Magnetocardiography (MCG) is a technique to measure the magnetic fields produced by electrical currents in the heart using extremely sensitive devices such as the superconducting quantum interference device (SQUID). If the magnetic field is measured using a multichannel device, a map of the magnetic field is obtained over the chest; from such a map, using mathematical algorithms that take into account the conductivity structure of the torso, it is possible to locate the source of the activity. For example, sources of abnormal rhythms or arrhythmia may be located using MCG. History The first MCG measurements were made by Baule and McFee using two large coils placed over the chest, connected in opposition to cancel out the relatively large magnetic background. Heart signals were indeed seen, but were very noisy. The next development was by David Cohen, who used a magnetically shielded room to reduce the background, and a smaller coil with better electronics; the heart signals we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electroencephalography
Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignal, bio signals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. It is typically non-invasive, with the EEG electrodes placed along the scalp (commonly called "scalp EEG") using the 10–20 system (EEG), International 10–20 system, or variations of it. Electrocorticography, involving surgical placement of electrodes, is sometimes called Electrocorticography, "intracranial EEG". Clinical interpretation of EEG recordings is most often performed by visual inspection of the tracing or quantitative EEG, quantitative EEG analysis. Voltage fluctuations measured by the EEG bioamplifier, bio amplifier and electrodes allow the evaluation of normal Brain activity and meditation, brain activity. As the electrical activity monitored by EEG originates in neurons in the underlying Huma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetoencephalography
Magnetoencephalography (MEG) is a functional neuroimaging technique for mapping brain activity by recording magnetic fields produced by electric current, electrical currents occurring naturally in the human brain, brain, using very sensitive magnetometers. Arrays of SQUIDs (superconducting quantum interference devices) are currently the most common magnetometer, while the SERF (spin exchange relaxation-free) magnetometer is being investigated for future machines. Applications of MEG include basic research into perceptual and cognitive brain processes, localizing regions affected by pathology before surgical removal, determining the function of various parts of the brain, and neurofeedback. This can be applied in a clinical setting to find locations of abnormalities as well as in an experimental setting to simply measure brain activity. History MEG signals were first measured by University of Illinois physicist David Cohen (physicist), David Cohen in 1968, before the availabili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Imaging
Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. Medical imaging also establishes a database of normal anatomy and physiology to make it possible to identify abnormalities. Although imaging of removed organ (anatomy), organs and Tissue (biology), tissues can be performed for medical reasons, such procedures are usually considered part of pathology instead of medical imaging. Measurement and recording techniques that are not primarily designed to produce images, such as electroencephalography (EEG), magnetoencephalography (MEG), electrocardiography (ECG), and others, represent other technologies that produce data susceptible to representation as a parameter graph versus time or maps that contain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioelectromagnetics
Bioelectromagnetics, also known as bioelectromagnetism, is the study of the interaction between electromagnetic fields and biological entities. Areas of study include electromagnetic fields produced by living cells, tissues or organisms, the effects of man-made sources of electromagnetic fields like mobile phones, and the application of electromagnetic radiation toward therapies for the treatment of various conditions. History Western From WW2 until around the 1980's the study of non-ionizing radiation in biological systems was considered a subset of radiobiology, or simply referred to as "effects" or "bioeffects" of a particular frequency band. The term "bioelectromagnetics" was coined by Thomas C. Rozzell of the Office of Naval Research. As the program manager for BEM at ONR ffice of Naval Researchfor 12 years prior to coming to ONRL ffice of Naval Research London I naturally concentrated my attention in this area. BEM ioElectroMagneticsis a relatively new research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetoception
Magnetoreception is a sense which allows an organism to detect the Earth's magnetic field. Animals with this sense include some arthropods, molluscs, and vertebrates (fish, amphibians, reptiles, birds, and mammals). The sense is mainly used for orientation and animal navigation, navigation, but it may help some animals to form regional maps. Experiments on Bird migration, migratory birds provide evidence that they make use of a cryptochrome protein in the eye, relying on the quantum radical pair mechanism to perceive magnetic fields. This effect is extremely sensitive to weak magnetic fields, and readily disturbed by radio-frequency interference, unlike a conventional iron compass. Birds have iron-containing materials in their upper beaks. There is some evidence that this provides a magnetic sense, mediated by the trigeminal nerve, but the mechanism is unknown. Cartilaginous fish including sharks and stingrays can detect small variations in electric potential with their Elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electroreception
Electroreception and electrogenesis are the closely related biological abilities to perceive electrical stimuli and to generate electric fields. Both are used to locate prey; stronger electric discharges are used in a few groups of fishes, such as the electric eel, to stun prey. The capabilities are found almost exclusively in aquatic or amphibious animals, since water is a much better Conductor (material), conductor of electricity than air. In passive electrolocation, objects such as prey are detected by sensing the electric fields they create. In active electrolocation, fish generate a weak electric field and sense the different distortions of that field created by objects that conduct or resist electricity. Active electrolocation is practised by two groups of weakly electric fish, the order Gymnotiformes (knifefishes) and family Mormyridae (elephantfishes), and by the monotypic genus ''Gymnarchus'' (African knifefish). An electric fish generates an electric field using an Elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reiki
Reiki is a pseudoscientific form of energy healing, a type of alternative medicine originating in Japan. Reiki practitioners use a technique called ''palm healing'' or ''hands-on healing'' through which, according to practitioners, a " universal energy" is transferred through the palms of the practitioner to the client, to encourage emotional or physical healing. It is based on qi ("chi"), which practitioners say is a universal life force, although there is no empirical evidence that such a life force exists. Reiki is used as an illustrative example of pseudoscience in scholarly texts and academic journal articles. The marketing of reiki has been described as "fraudulent misrepresentation", and itself as a "nonsensical method", with a recommendation that the American government agency NCCAM should stop funding reiki research because it "has no substantiated health value and lacks a scientifically plausible rationale". Clinical research does not show reiki to be effective ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aura (paranormal)
According to spiritual beliefs, an aura or energy field is a colored emanation said to enclose a human body or any animal or object. In some esoteric positions, the aura is described as a subtle body. Psychics and holistic medicine practitioners often claim to have the ability to see the size, color and type of vibration of an aura. In spiritual alternative medicine, the human-being aura is seen as part of a hidden anatomy that reflects the state of being and health of a client, often understood to even comprise centers of vital force called chakras. Such claims are not supported by scientific evidence and are thus considered pseudoscience. When tested under scientific controlled experiments, the ability to see auras has not been proven to exist. Etymology In Latin and Ancient Greek, ''aura'' means wind, breeze or breath. It was used in Middle English to mean "gentle breeze". By the end of the 19th century, the word was used in some spiritualist circles to describe a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
