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  2. Microwave auditory effect - Wikipedia

    en.wikipedia.org/wiki/Microwave_auditory_effect

    The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of the human perception of sounds induced by pulsed or modulated radio frequencies. The perceived sounds are generated directly inside the human head without the need of any receiving electronic device.

  3. Psychoacoustics - Wikipedia

    en.wikipedia.org/wiki/Psychoacoustics

    Psychoacoustics is the branch of psychophysics involving the scientific study of the perception of sound by the human auditory system.It is the branch of science studying the psychological responses associated with sound including noise, speech, and music.

  4. Hypersonic effect - Wikipedia

    en.wikipedia.org/wiki/Hypersonic_effect

    It is a common understanding in psychoacoustics that the ear cannot respond to sounds at such high frequency via an air-conduction pathway, so one question that this research raised was: does the hypersonic effect occur via the "ordinary" route of sound travelling through the air passage in the ear, or in some other way?

  5. Infrasound - Wikipedia

    en.wikipedia.org/wiki/Infrasound

    Hearing becomes gradually less sensitive as frequency decreases, so for humans to perceive infrasound, the sound pressure must be sufficiently high. Although the ear is the primary organ for sensing low sound, at higher intensities it is possible to feel infrasound vibrations in various parts of the body.

  6. Ultrasonic hearing - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_hearing

    Ultrasonic hearing is a recognised auditory effect which allows humans to perceive sounds of a much higher frequency than would ordinarily be audible using the inner ear, usually by stimulation of the base of the cochlea through bone conduction. Normal human hearing is recognised as having an upper bound of 15–28 kHz, [1] depending on the person.

  7. Auditory cortex - Wikipedia

    en.wikipedia.org/wiki/Auditory_cortex

    Damage to the auditory cortex in humans leads to a loss of any awareness of sound, but an ability to react reflexively to sounds remains as there is a great deal of subcortical processing in the auditory brainstem and midbrain. [13] [14] [15] Neurons in the auditory cortex are organized according to the frequency of sound to which they respond ...

  8. Auditory illusion - Wikipedia

    en.wikipedia.org/wiki/Auditory_illusion

    [4] [5] [6] Auditory illusions highlight areas where the human ear and brain, as organic survival tools, differentiate from perfect audio receptors; this shows that it is possible for a human being to hear something that is not there and be able to react to the sound they supposedly heard. When someone is experiencing an auditory illusion ...

  9. Acoustic reflex - Wikipedia

    en.wikipedia.org/wiki/Acoustic_reflex

    The acoustic reflex threshold can be decreased by the simultaneous presentation of a second tone (facilitator). The facilitator tone can be presented to either ear. This facilitation effect tends to be greater when the facilitator tone has a frequency lower than the frequency of the elicitor (i.e. the sound used to trigger the acoustic reflex ...