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Science

One in Five of Us May 'Hear' Flashes of Light (theguardian.com) 134

One in five people is affected by a synaesthesia-like phenomenon in which visual movements or flashes of light are "heard" as faint sounds, according to scientists. From a report on The Guardian: The findings suggest that far more people than initially thought experience some form of sensory cross-wiring -- which could explain the appeal of flashing musical baby toys and strobed lighting at raves. Elliot Freeman, a cognitive neuroscientist at City University and the study's lead author, said: "A lot of us go around having senses that we do not even recognise." More florid forms of synaesthesia, in which disparate sensory experiences are blended, are found in only about 2-4% of the population. To a synaesthete, the number seven might appear red, or the name Wesley might "taste" like boiled cabbage, for instance. The latest work -- only the second published on the phenomenon -- suggests that many more of us experience a less intrusive version of the condition in which visual movements or flashes are accompanied by an internal soundtrack of hums, buzzes or swooshes. Since movements are very frequently accompanied by sounds in everyday life, the effect is likely to be barely discernible.
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One in Five of Us May 'Hear' Flashes of Light

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  • Wesley? (Score:5, Funny)

    by drunken_boxer777 ( 985820 ) on Wednesday January 18, 2017 @09:08AM (#53688797)

    the name Wesley might "taste" like boiled cabbage

    I am pretty sure the name Wesley tastes like a nice MLT, where the mutton is nice and lean.

    Or perhaps it tastes like iocaine powder if you are a Sicilian.

    • by GTRacer ( 234395 )
      Beat me to it!
    • Okay, sorry for being pedantic, but if you're referencing a Sicillian and iocaine powder then you're talking about Westley, not Wesley. I know, I know, everyone who watches the movie hears it as Wesley, but that's not correct.
      • by Anonymous Coward

        Okay, sorry for being pedantic, but if you're referencing a Sicillian and iocaine powder then you're talking about Westley, not Wesley. I know, I know, everyone who watches the movie hears it as Wesley, but that's not correct.

        What are you talking about? We all know the exploits of the famous trio Wesley, Indigo, and Andre.

      • You have taught me something new today, I thank you. I had no idea the name was Westley.

        Hello. My name is Inigo Montoya. You killed my father. Prepare to die.

    • by fedos ( 150319 )
      But iocaine powder has no taste.
  • by Anonymous Coward on Wednesday January 18, 2017 @09:09AM (#53688805)

    ... but the other way around: when I'm in bed, in the absolute dark, and hear a sudden noise, I see it as a white flash that correlates very strongly with the noise intensity/position. And it's not only when I'm almost sleeping, it's enough just to be in a dark place but I started noticing it when lying in bed. Wonder if that's also common.

    • I would think a neural "cross bleed" between any two senses is possible.
    • Same deal. I would describe it as the flash and noise associated with a CRT being turned on, but far more jolting since it's all in my head.
      • by I4ko ( 695382 )

        Nope, the CRTs are pure noise. I can hear them operating even with my eyes closed and my back turned to them. I just have a significantly better high-frequency sensitivity than most people. The initial jolt is the electromagnets snapping into place when power is turned on, then the noise of them working is very distinct high frequency sound (for the horizontal deflectors).
        May be your high-frequency hearing is not that good but you still perceive the vibrations.

        • by radaos ( 540979 )
          Brighter scenes place greater demands on the power supply of a CRT. On older sets this can be heard as a buzzing sound, sometimes accompanied by picture distortion.
    • I've been having the same thing for decades. Loud sounds and noises flash my vision white, which was kind of a safety issue when I worked at a shipyard 40 years ago as a gantry/bridge crane mechanic. Knew it was synesthesia, but didn't realize how common it seems to be.
    • When I look directly into a bright light, I hear myself sneezing. Does that count, too?

    • by qeveren ( 318805 )

      Yup, same here, although very subtly. Sudden noises cause the impression of a brief flash of light, and hilariously, bright light makes it harder for me to hear things. XD

    • Same here. It occurs only when I'm falling asleep, I can see sudden noises. It's always blue, but it goes from light to dark blue: acute sounds are light blue, bass sounds are dark blue. The image always shows at the same place (pointing towards my noise) and has a form that reminds me of a lava lamp.

  • Raves (Score:5, Funny)

    by in10se ( 472253 ) on Wednesday January 18, 2017 @09:25AM (#53688899) Homepage

    If they think some natural process "could explain the appeal of flashing musical baby toys and strobed lighting at raves", they don't know what's going on at raves.

  • baby toys (Score:4, Interesting)

    by wjcofkc ( 964165 ) on Wednesday January 18, 2017 @09:41AM (#53688965)
    Or maybe it is the flashing musical baby toys that wires brains this way in the first place.
  • by Anonymous Coward

    This sounds pretty much like synesthesia outright.

  • Comment removed (Score:5, Interesting)

    by account_deleted ( 4530225 ) on Wednesday January 18, 2017 @09:45AM (#53688985)
    Comment removed based on user account deletion
    • by anwyn ( 266338 )
      This is a result of occult training in a past life.
    • the character "Cassandra Cillian" has a huge case of this (giving a good excuse for the Math Girl thinking FX)

    • by wept ( 128554 )

      didn't you think it was weird that no one else ever mentioned it?

      • The thing about synesthesia (grapheme-color and chromesthesia synesthete here, so I speak from experience) is that the phenomenon feels so natural that you don't even think about other people not mentioning it in the same way you don't think about other people not going around talking about what the color red looks like all the time. When people don't mention something which feels natural to you, the first assumption most people have is that it must feel natural to others as well, not that they don't experi
        • Comment removed based on user account deletion
          • by Anonymous Coward

            It's not just synesthesia, other forms of altered perception are easily not noticed by the sufferer. I was 32 before I realised I'm completely face blind! I can recognise someone at a distance by their gait and pose, the sound of their footsteps and voice etc, so it's not like I ever struggled with identifying people I know.
            I just assumed everyone else had trouble recognising people after a haircut, or change in clothes style...

            • One small point of contention - you will find very few synesthetes who consider themselves to "suffer" due to the condition, or who would consider it to be a disorder. When non-synesthetes hear about synesthesia, they often say that they would find it odd or distracting. But in reality, it is not a matter of desensitization to a negative situation at all. Rather, due to the 'naturalness' of the sensation it generally ranges from neutral to actually pleasant where they would legitimately miss it if it was go
          • by Anonymous Coward

            I had a friend in high school who could "see" the color of every note on a piano. You could play a note and he'd tell you not only the note but the exact key you pressed (so the octave, too). He could even pick out all the notes in chords of 5 or 6 notes even if they were disharmonious and tell you the chord name (e.g. "That's a C# minor with an added A two octaves down and a B flat one octave down")

            I was soooo jealous. The thing that struck me was that his "colors" were consistent (for instance, C was alwa

  • Flashbang Fireworks (Score:5, Interesting)

    by T.E.D. ( 34228 ) on Wednesday January 18, 2017 @09:46AM (#53688995)

    I wonder if this has implications for what kind of fireworks different people like. One of my favorites are the ones that are just a single quick very bright flash of light, followed by the explosion that you can feel as well as hear. My wife hates those.

    People with that condition would definitely "hear" something extra with those, moreso than with any other kind of firework. So that particular firework would be a totally different experience than it is for everyone else.

    • I don't like noisy fireworks in general. I like the lights, I don't mind the vibrations, I don't like the sound; never understood why people would enjoy a harsh offensive sound that blasts their eardrums.

  • by nine-times ( 778537 ) <nine.times@gmail.com> on Wednesday January 18, 2017 @09:58AM (#53689059) Homepage

    I don't remember exactly, and maybe someone will remember and have a link handy, but I think there was a recent study (in the past few years) that suggested that mild forms of synaesthesia might be extremely common, and in fact simply part of how human intelligence works.

    I think the suggestion was that there are various ways that we connect sense information naturally, and unavoidably. Red is hot. Blue is cold. Red tastes like cherries and green like sour apple. Odd numbers might seem sharp to you, while evens seem rounded. Someone yelling angrily at a certain pitch might conjure the feeling of running your hand the wrong way on a cheese grater. You might feel a tactile sense of pain when hearing finger nails on a chalkboard.

    Now someone is going to come forward and point out that many of these things might just be learned associations, which is true. I think the argument was that the ability to make these associations, as well as the ability to form and understand metaphors like "His voice was like rubbing your hand the wrong way on a cheese grater," implies that your brain is already capable of tying different kinds of sensory information together. Visual information can have a sound. Sounds can have colors. Colors can have tastes. What we call "synaesthesia" may just be an amplified version of this very common phenomenon.

    • but I think there was a recent study (in the past few years) that suggested that mild forms of synaesthesia might be extremely common, and in fact simply part of how human intelligence works.

      Anecdotally, I was driving somewhere, listening to some music and a particular note seemed to have a taste. It was really weird. I have never experienced this before or after (or perhaps just never been consciously aware of it).

  • by drinkypoo ( 153816 ) <drink@hyperlogos.org> on Wednesday January 18, 2017 @10:10AM (#53689135) Homepage Journal

    Elliot Freeman, a cognitive neuroscientist at City University and the study's lead author, said: "A lot of us go around having senses that we do not even recognise."

    It seems to me more like a short circuit between regions of the brain than a different sense. I wouldn't like to hear things that aren't there just because I'm seeing things. It's well known that there are substantial interactions between different regions of the brain, which is why for example we turn down the stereo while trying to find an address.

    • dunno about the rest of youse but i turn down the stereo when trying to find an address because i'm about to be looking around at everything but the road and i want to hear any changes in my environment, which is sort of the same thing, but includes the substantial interactions between my car and the rest of the world. i do get changes in audio from visual stimulation but i think some of that is also related to microadjustments of muscles in my ears, which i would guess are related to how the optic and audi
  • I hear noises from animated gif's with impacts, explosions and so on, even machines clatter and clunk. I also get a ghost pain impression when seeing someone get hurt. I'm weird, I know, but maybe not quite as weird as I thought before...

  • Except for maybe Hong Kong, I'd suggest that the researcher's data skews towards people who abuse LSD.

  • by Anonymous Coward

    We would hear the Enterprise in a vacuum

  • by moosehooey ( 953907 ) on Wednesday January 18, 2017 @11:55AM (#53689691)

    Sometimes if I'm startled by a sharp noise, I also see a flash of light.

  • by MMORG ( 311325 ) on Wednesday January 18, 2017 @12:26PM (#53689913)

    When people see a bright meteor in the night sky, especially a fireball that leaves a glowing trail, it's pretty common for them to report that it was accompanied by a simultaneous sound of some sort, often a crackling noise. Those reports are frequent enough that we can't just dismiss them out of hand but no one has been able to propose a satisfactory explanation from a physics standpoint. If synaesthesia is actually common that would probably explain what's going on.

    • by adolf ( 21054 )

      I am one who hears meteors tear through the sky.

      It only happens when I actually see them, not for the vast majority of them that go unseen. And happens in both relatively bright ambient lighting (on a porch, in town, with the lights on) or relative darkness (out in the country somewhere).

      But I've never noticed an auditory response to other other visual stimuli.

    • This is also true for the aurora borealis (northern lights). People report hearing sounds when watching them, but you can analyze the audio from video recordings and see that there is no sound. Or record audio only during an aurora borealis and play it back later: nothing.

  • Not actual radio-like telepathy like in sci-fi stories, but an inbuilt capacity to actually experience what our brains think other people are experiencing.

    One of the classic experiments like this is to get a subject wearing goggles to identify with a mannequin [youtube.com]. Of course this is artificially induced; we didn't evolve in a world with 3D goggles and cameras. But there is a condition called "mirror-touch synesthesia" in which this occurs naturally, in which people spontaneously experience what someone else

  • by doug141 ( 863552 ) on Wednesday January 18, 2017 @03:40PM (#53691371)

    Growing a human brain in a human skull causes folds. Folds cause crosstalk. Crosstalk causes synethesia and other personality traits.

  • I play a mobile game called summoners war. In that game, a critical hit causes the image on the screen move/shrink in a way that I hear as a "thump".

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