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Science

Research Reveals Why Some Find the Sound of Others Eating So Irritating (theguardian.com) 64

Scientists have shed light on why everyday sounds such as chewing, drinking and breathing can be so maddening to some people that it drives them to despair. From a report: Now, brain scans performed by researchers at Newcastle University have revealed that people with misophonia have stronger connectivity between the part of the brain that processes sounds and the part of the so-called premotor cortex which handles mouth and throat muscle movements. When people with misophonia were played a "trigger sound," the scans showed that the brain region involved in mouth and throat movement was overactivated compared with a control group of volunteers who did not have the condition.

"What we are suggesting is that in misophonia the trigger sound activates the motor area even though the person is only listening to the sound," said Dr Sukhbinder Kumar, a neuroscientist at Newcastle University. "It makes them feel like the sounds are intruding into them." Kumar and his colleagues believe that trigger sounds activate what is called the brain's mirror neuron system. Mirror neurons are thought to fire when a person performs an action, but also when they see others make particular movements.

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Research Reveals Why Some Find the Sound of Others Eating So Irritating

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  • by BeerFartMoron ( 624900 ) on Tuesday May 25, 2021 @02:23PM (#61420988)
    People generally complain about the sounds I make at the other end of the digestion process.
  • by AmazingRuss ( 555076 ) on Tuesday May 25, 2021 @02:28PM (#61421010)
    "When people with misophonia were played a "trigger sound," the scans showed that the brain region involved in mouth and throat movement was overactivated " This is when you think "shut your fucking mouth" but don't say it.
  • This has never bothered me except the usual cows who chew with their mouths open and talk; fish cooked in microwaves OTOH deserve the death penalty.

  • Problem solved. Next bullshit problem..

    • by Anonymous Coward
      Not a bullshit problem - I live with two people who suffer from misophonia. An audiologist prescribed hearing aids for one of them; not to enhance hearing, but to play white noise to train the brain to ignore sounds that trigger anger, rage, and panic. Check out the Misophonia episode of the excellent podcast "Twenty Thousand Hertz" https://www.20k.org/episodes/m... [20k.org] for more information.
    • Put plugs in your ears for 12 ours and tell me how you feel after.
  • "I'm a little bitch who bases his entire personality around a word I just learned"

  • by CubicleZombie ( 2590497 ) on Tuesday May 25, 2021 @02:48PM (#61421084)

    She will chew gum with her mouth open all day but then explode into rage at the sound of someone else quietly swallowing or their jaw making a clicking sound.

    I, on the other hand, have always been extremely self conscious about making noises while eating. Along with a lifetime of self esteem issues. So after a decade of being told I chew like a cow, I now avoid family dining at all costs. Yet another reason my marriage is circling the drain.

  • by Black.Shuck ( 704538 ) on Tuesday May 25, 2021 @03:19PM (#61421230)

    This explains the “how”, but not really the “why”.

    Perhaps this sensitivity is to do with a heightened aversion to things that, taken to extreme, cause a pretty natural “disgust reflex”?

    I mean that in the sense of wanting to avoid disease. Something highly likely to have strong evolutionary pressure.

    Sure, chewing with the occasional smacking noise is not much to fuss about. But the “worst case” of this behaviour is horking down handfuls of almost-fermenting snouts and entrails. Off a filthy floor. With your snot-encrusted mouth wide open. Belching up acidic reflux and struggling to stand on the predigested mastications dripping onto the floor beneath you. All the while trying to whistle the opening bars of a Bette Midler song through a maelstrom of hair and mucus and bile.

    I’d wager this is the image most people have in their heads who are sensitive to such noises.

    • Just imagine Roseanne Barr naked. That will shut down every active drive you have and kick your fight or flight straight into gulfstream G6 mode.
    • After reading the journal article, I'm thinking that this is a remnant of mimicry.
      As a mild sufferer of misophonia, I do have the annoying habit of aping things as well - almost completely reflexive.
      So, it's not like avoiding sounds, but the brains wiring of repeating them.
      I also don't remember being so adversely affected when I was young, but it's gotten worse as I age.
      So - the next study should be to look at the wiring of infants. My thesis is that everyone gas this mimicry wiring and then most grow out

    • Perhaps this sensitivity is to do with a heightened aversion to things that, taken to extreme, cause a pretty natural “disgust reflex”?

      Maybe a little, but for me (I have misophonia), it's mostly the intrusion into my thoughts. Like, I can't hear someone chewing (especially fucking carrots or something) and prevent myself from imagining the entire multisensory visceral process. No matter how hard I try, I can't NOT think about *your* tongue flicking around half-chopped up bits of carrot, covered in gooey saliva, I can't NOT feel the bits of carrot getting stuck in *your* teeth etc...

      Even though I might enjoy eating a carrot myself, if you e

  • One thing that has really come into vogue that didn't used to be is that people spend a lot more time getting diagnosed, and then wear their diagnosis around like a badge.

    You can carry it for a lifetime and sometimes even get pills for it!

  • It's the reason you laugh when you feel like cring so much it overwhelms you, and cry from laughter when it is very funny, due to the brain regions being right next to each other.

    It is the reason why your feet tingle during sexual arousal and are erogenous zones for many people, due to those brajn centers being very close too.

    And most importantly, it is why you start hating everything resembing that thing that was merely a bystander when your dad beat you, even though that thing itseld was not the problem.
    O

    • Maybe. What if the cure is worse? People are who they are based on experiences good and bad. Bad things happening doesnt mean you have to do bad things. But it might mean you have insight that could prevent bad things, which might not exist if we could mulligan every bad experience.
  • The breathing of someone else is a different rythm, and for some people it interferes with their own which becomes a huge distraction since they have to focus more on something that they usually do not.
  • No pun intended. How obnoxious is it when someone criticizes something that you do naturally and you can't confirm what their complaining about. "You chew too loudly!" Yeah, um, get a dB meter and we'll look at it scientifically (that, fyi, is how science is done). Or how about this gem: "You walk funny."

    • by Cederic ( 9623 )

      Some people do chew too loudly. Or breathe too loudly.

      Some people have a direct unwanted reaction to that.

      Who is at fault? Who cares. There is an issue. It doesn't fucking matter when you agree or not, there is still an issue.

      So work to address it. Is that so hard?

      • But WHO has to address the issue? The chewer? Perhaps the person with sensitive hearing should buy some earplugs. There are two sides to that coin.

  • .. I find *profoundly* irritating. It tends to emit mainly from the unmonitored orifices of those with the worst "mental digestive" problems.
  • "What we are suggesting is that in misophonia the trigger sound activates the motor area even though the person is only listening to the sound, it makes them feel like the sounds are intruding into them." as they noisily chowed down on pho, slurping greedily at the last bits of each noodle, then belching and picking their teeth with fish bones whilst loudly pulling air through pursed lips in an effort to vacuum the remaining bits from between their teeth.

  • I was never a fan of that vloging/streaming subculture. It is a very profitable one.

    In any event: I can now fully understand my aversion towards said content creators.

  • that I might have an actual condition that makes me over sensitive to some of the weirder human noises. I never made a huge deal out of it, but it certainly effected the relationship somewhat that I had with my ex-wife. She makes strange, almost cartoonish, noises when she eats. Image someone actually verbalizing, "nom nom nom GULP." Or when she breathed she makes a weird grunting noise. I always thought she should ask her doctor about that one, but she wouldn't acknowledge doing it, even after being presen

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