What does modulation mean in medicine?
1. To regulate or adjust to a certain degree: physiological mechanisms that modulate the body’s metabolic rate. 2. Biochemistry To act on (a receptor, for example) as an activator, an inhibitor, or both.
What is the meaning of the modulation?
Definition of modulation 1 : an inflection of the tone or pitch of the voice specifically : the use of stress or pitch to convey meaning. 2 : a regulating according to measure or proportion : tempering. 3 : a change from one musical key to another by modulating.
What is modulation in physiology?
A quite ordinary example of the modulation of painful stimuli is the ability to reduce the sensation of sharp pain by activating low-threshold mechanoreceptors: If you crack your shin or stub a toe, a natural (and effective) reaction is to vigorously rub the site of injury for a minute or two.
What does modulation affect mean?
Modulation effects are a particular category of audio effect (FX). These are effects which modify the sound in a certain way: by adding a time-delayed version of the sound to itself, and then varying the size of that delay over time.
What is another name for modulator?
Find another word for modulator. In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for modulator, like: demodulator, pentode, amplifier, signal-generator, local oscillator, pll, preamplifier, , pre-amp, varactor and triode.
What is the function of modulator?
A modulator is an electronic circuit that superimposes a low-frequency (information) signal onto a high-frequency (carrier) signal for the purpose of wireless transmission. The reason for this is that higher frequency signals can be received using shorter aerials, which are more practical than longer ones.
What is modulation example?
In analog modulation an analog modulation signal is impressed on the carrier. Examples are amplitude modulation (AM) in which the amplitude (strength) of the carrier wave is varied by the modulation signal, and frequency modulation (FM) in which the frequency of the carrier wave is varied by the modulation signal.
What is modulation explain why is needed?
Modulation allows us to send a signal over a bandpass frequency range. If every signal gets its own frequency range, then we can transmit multiple signals simultaneously over a single channel, all using different frequency ranges. Another reason to modulate a signal is to allow the use of a smaller antenna.
How does the body modulate pain?
Pain is modulated by two primary types of drugs that work on the brain: analgesics and anesthetics. The term analgesic refers to a drug that relieves pain without loss of consciousness. The term central anesthesia refers to a drug that depresses the CNS.
What does modulation mean in pain?
Introduction. Pain modulation refers to the process by which the body alters a pain signal as it is transmitted along the pain pathway and explains, at least in part, why individual responses to the same painful stimulus sometimes differ.
How do modulators work?
Modulation is what takes a signal from low frequencies (the message) and pulls it up to a higher frequency (the carrier). The idea is simple: Multiply your message by a high frequency carrier, such as 680 kHz. Voila, that’s AM radio!
Why do you use modulation?
Modulation is simply a widely used process in communication systems in which a very high-frequency carrier wave is used to transmit the low-frequency message signal so that the transmitted signal continues to have all the information contained in the original message signal.
What is the medical definition of modulation?
Medical Definition of modulation 1 : the act or process of modulating 2 : a reversible change in histological structure due to physiological factors
What is modulation 3 and 4?
3 : a change from one musical key to another by modulating. 4 : the process of modulating a carrier or signal (as in radio) also : the result of this process.
What is a retinal modulator?
Medical Definition of modulator 1 : one that modulates 2 : any of the nerve fibers that carry impulses from single retinal cones and are believed to be responsible for the transmission of discrete sensations of color
What does modulus mean in English?
mod·u·la·tion | \\ ˌmä-jə-ˈlā-shən \\. 1 : an inflection of the tone or pitch of the voice specifically : the use of stress or pitch to convey meaning. 2 : a regulating according to measure or proportion : tempering.