Microwave auditory effect
Microwave Auditory Effect
The Microwave Auditory Effect (pronunciation: /ˈmaɪ.kroʊ.weɪv ˈɔː.dɪ.tɔːr.i ɪˈfɛkt/), also known as the Freyp Effect, is a phenomenon where humans perceive auditory sensations or sounds in response to pulsed or modulated radio frequency (RF) energy. The term was coined by American neuroscientist Allan H. Frey in 1961.
Etymology
The term "Microwave Auditory Effect" is derived from the words "microwave", referring to the type of electromagnetic radiation used, and "auditory effect", indicating the impact on the human auditory system. The term "Freyp Effect" is named after Allan H. Frey, who was the first to investigate this phenomenon.
Description
The Microwave Auditory Effect occurs when an individual is exposed to pulsed or modulated RF energy. The energy is absorbed by the brain and converted into neural signals, which are then perceived as sound. The sound is often described as a buzzing, clicking, hissing, or popping noise. The exact mechanism of this effect is still not fully understood, but it is believed to involve thermoelastic expansion of brain tissue.
Related Terms
- Auditory system: The sensory system for the sense of hearing. It includes both the sensory organs (the ears) and the auditory parts of the sensory system.
- Electromagnetic radiation: A type of energy that is propagated through free space or through a material medium in the form of electromagnetic waves, such as radio waves, visible light, and gamma rays.
- Radio frequency: Any of the electromagnetic wave frequencies that lie in the range extending from around 3 kHz to 300 GHz, which include those frequencies used for communications or radar signals.
- Thermoelastic expansion: A mechanical deformation (expansion or contraction) of a material due to heating or cooling.
External links
- Medical encyclopedia article on Microwave auditory effect
- Wikipedia's article - Microwave auditory effect
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