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Increased Vulnerability to Pattern-Related Visual Stress in Myalgic Encephalomyelitis

Discussion in 'Latest ME/CFS Research' started by Kyla, Nov 10, 2015.

  1. Kyla

    Kyla ᴀɴɴɪᴇ ɢꜱᴀᴍᴩᴇʟ

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    http://pec.sagepub.com/content/early/2015/11/03/0301006615614467.abstract
    (paywalled)


     
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  2. MeSci

    MeSci ME/CFS since 1995; activity level 6?

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    It would be interesting to see the full article.

    I have serious problems with moving or changing images or patterns on websites. It makes it very hard for me to find what I am looking for. The online supermarket I use has these on the log-in page, and it frazzles both my eyes and my brain, making it hard to log in. It's a similar effect to when I inhale an artificial perfume, or two or more people are talking at once.

    I suspect that it's to do with our inability to filter out unwanted stimuli, thus susceptibility to overstimulation.
     
  3. snowathlete

    snowathlete

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    Interesting. Worth exploring.
     
  4. Sidereal

    Sidereal Senior Member

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    Interesting.
     
  5. Scarecrow

    Scarecrow Revolting Peasant

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    ME Association, please take note. :(
     
  6. Vasha

    Vasha Senior Member

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    Really interesting. This also fits my experience.

    I wonder if similar studies have been done with other groups, for example, migraineurs having a migraine, or people with autism.
     
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  7. Marco

    Marco Grrrrrrr!

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    Without the details it's hard to tell what this study paradigm implies but I've thought for a long time that there might be a lot to learn from these basic 'signal processing' pathways using often overlooked 'older' technologies such as evoked potentials and even as a psychology undergrad we had access to tools such as tachistoscopes for looking at issues involved in visual processing (much easier to do these days with PC's).

    I'd bet that whatever is going on with our brains would be likely to show up in early sensory processing.
     
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  8. Battery Muncher

    Battery Muncher Senior Member

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    V interesting
     
  9. Kyla

    Kyla ᴀɴɴɪᴇ ɢꜱᴀᴍᴩᴇʟ

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    This researcher (Claire V. Hutchinson ) has published several previous studies on this topic.

    this one is open access:
    http://journals.lww.com/optvissci/F..._Abnormal_Visual_Attention_in_Myalgic.12.aspx
     
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  10. Marco

    Marco Grrrrrrr!

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    Thanks Kyla.

    I think I read their previous study that found problems with smooth pursuit tracking (if I remember correctly) but I don't recall that one.

    Worth a read.
     
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  11. Marco

    Marco Grrrrrrr!

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    I need to re-read the paper that @Kyla referenced but this stood out from the discussion :

     
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  12. Forbin

    Forbin Senior Member

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    Interesting. I've experienced a lot of visual problems which are no doubt related to dizziness, but more specifically to the two eyes not working together - both on a physical level and on the level where the left and right images are "fused" in the brain (which could account for the distortions described in the abstract above).

    One effect of this difficulty is an intolerance for polarized glasses (or polarized sunglasses), due to the fact that the polarization creates a slightly different pattern of "brightness" and "highlights" for each eye which the brain must then try to combine (just as it has to "fuse" the left and right images from the eyes into a single 3D view.)

    Just curious if anyone else has ever noticed such an intolerance for polarized glasses?
     
    Last edited: Nov 11, 2015
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  13. Scarecrow

    Scarecrow Revolting Peasant

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    @Forbin, I've never worn polarised glasses but I relate to the left and right eye not working together. Twenty five years on, it still feels weird.
     
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  14. leela

    leela Slow But Hopeful

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    I have this. Can't do polarized glasses at all. Or progressive lenses. And sometimes, I can't even look at a black and white checker-tile floor without feeling a bit sick.
     
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  15. Forbin

    Forbin Senior Member

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    I definitely relate to that. Any repeating pattern in a floor covering disturbs me. My local library put in a repeating pattern on their huge floor a few years ago and it became very difficult to go in there.

    For me, one of the worst things is the pattern of vertical groves on an escalator's moving steps. For my height, they are just at the right distance from my eyes so as to make it difficult to figure out how to "converge" on the repetitious pattern - and you do pretty much have to look down to ensure you're on the step.
     
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  16. MeSci

    MeSci ME/CFS since 1995; activity level 6?

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    I don't know re polarised lenses, but I tried some varifocal lenses briefly (not sure if this is the same as progressive) at the opticians and couldn't cope with them - made me disorientated, I think. I seem to be fine with bifocals, although I think I was slightly disorientated at first.
     
  17. MeSci

    MeSci ME/CFS since 1995; activity level 6?

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    I have to look at my feet whatever the ground surface; otherwise my feet/legs don't know where they are in relation to the ground. This is only since I have had ME, and I learned the lesson a fairly hard way, after having falls on stairs and steps.
     
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  18. Rrrr

    Rrrr Senior Member

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    @Forbin wow. thank you for posting this. i have real trouble finding sun glasses that don't make my brain and vision go wacky. so this must be why. thank you for writing this!
     
  19. Rrrr

    Rrrr Senior Member

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    exactly. as soon as i had ME onset (decades ago), i stopped wearing any clothes with patterns and only wear solid colored clothes. and i have asked my partner to do the same. i can't stand looking at checkers or any patterns.
     
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  20. LisaGoddard

    LisaGoddard Senior Member

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    Patterns confuse my brain too.
     

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