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Electroanalgesia is a form of analgesia, or pain relief, that uses electricity to ease pain and belongs to a type of neurotherapy.Electrical devices can be internal or external, at the site of pain (local) or delocalized throughout the whole body.
A transcutaneous electrical nerve stimulation (TENS or TNS) is a device that produces mild electric current to stimulate the nerves for therapeutic purposes.TENS, by definition, covers the complete range of transcutaneously applied currents used for nerve excitation, but the term is often used with a more restrictive intent, namely, to describe the kind of pulses produced by portable ...
The pointwise definition may be expanded to a visibility function varying over time or space. For example, the phase difference varies as a function of space in a two-slit experiment . Alternately, the phase difference may be manually controlled by the operator, for example by adjusting a vernier knob in an interferometer .
In physics, interference is a phenomenon in which two coherent waves are combined by adding their intensities or displacements with due consideration for their phase difference. The resultant wave may have greater amplitude ( constructive interference ) or lower amplitude ( destructive interference ) if the two waves are in phase or out of ...
The term has also been applied specifically to the use of electric current to speed up wound healing. The use of electromagnetic stimulation or EMS is also very wide for dealing with muscular pain. [4] Additionally, the term "electrotherapy" or "electromagnetic therapy" has also been applied to a range of alternative medical devices and ...
Noxious stimuli activate the endings of nociceptive C and A delta nerve fibers, which carry the signal to neurons in the dorsal horn of spinal cord.DNIC refers to the mechanism by which dorsal horn wide dynamic range neurons responsive to stimulation from one location of the body may be inhibited by noxious stimuli (such as heat, high pressure or electric stimulation) applied to another ...
Properly defined, the threshold is really the experience of the patient, whereas the intensity measured is an external event. It has been common usage for most pain research workers to define the threshold in terms of the stimulus, and that should be avoided ... The stimulus is not pain and cannot be a measure of pain.
The amount of coherence can readily be measured by the interference visibility, which looks at the size of the interference fringes relative to the input waves (as the phase offset is varied); a precise mathematical definition of the degree of coherence is given by means of correlation functions. More broadly, coherence describes the ...