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Tuesday, February 26, 2019

10 Sounds We Hate Most and Why

Scientists have discovered why unpleasant sounds trigger a negative response. When we hear unpleasant sounds such as a fork scraping a plate or nails against a chalk board, the auditory cortex of the brain and an area of the brain called theamygdala interact to produce a negative response. The auditory cortex processes sound, while the amygdala is responsible for processing emotions such as fear, anger, and pleasure. When we hear an unpleasant sound, the amygdala heightens our perception of the sound. This heightened perception is deemed distressing and memories are formed associating the sound with unpleasantness.
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How We Hear

Sound is a form of energy that causes air to vibrate, creating sound waves. Hearing involves the conversion of sound energy to electrical impulses. Sound waves from the air travel to our ears and are carried down the auditory canal to the ear drum. Vibrations from the eardrum are transmitted to the ossicles of the middle ear. The ossicle bones amplify the sound vibrations as they are passed along to the inner ear. The sound vibrations are sent to the organ of Corti in the cochlea, which containsnerve fibers that extend to form the auditory nerve. As the vibrations reach the cochlea, they cause the fluid inside the cochlea to move. Sensory cells in the cochlea called hair cells move along with the fluid resulting in the production of electro-chemical signals or nerve impulses. The auditory nerve receives the nerve impulses and sends them to the brainstem. From there the impulses are sent to the midbrainand then to the auditory cortex in the temporal lobes. The temporal lobes organize sensory input and process the auditory information so that the impulses are perceived as sound.

10 Most Hated Sounds

9 comments:

  1. Did I just hear Steve Hammond ((wboc) (lower case intentional))mention 'on air', about Delmarva's "shameful past"?
    Appalled, to say the least.



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  2. My most hated sounds are polosi, schumer, booker, waters and most of all AOC. List just goes on and on.

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  3. None of these noises bother me as much as people who make smacking noises when they eat.

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  4. Disagree:
    Fart in closed elevator
    Phone call from telemarketer
    Smoke alarm while cooking bacon
    Alarm clock on Monday morning
    Any Democrat spinning one of their lies
    Rap
    Contentless WBOC news (redundant)
    New T shirt ripping when I flex
    Solenoid sputtering on dead battery
    Dentist's drill

    Just a partial list,

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  5. The sound of my mother-in-law's voice trumps all of them.

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  6. mother in law or sister in laws voice heads down!

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  7. Michael Cohen's testimony and all the Democrats speaking.

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  8. The squeak of shoes on a basketball court.

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  9. rap .... non music noise

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