What kind of aura do you have?

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What kind of auras do you have?

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Total Votes : 128

What kind of aura do you have?

Post by Tee on Fri Apr 29, 2011 4:50 am

It has been shown via MRI during aura, that changes in the brain (officially called a cortical spreading depression) can be seen slowly moving across part of the brain.

It is thought that auras are caused by a wave of nerve signals or impulses that move across the brain, causing a disruption in normal activity in those parts of the brain. These changes are thought to cause a wide range of migraine symptoms.

Thought it might be interesting to see what auras we all have?
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Re: What kind of aura do you have?

Post by pīwakawaka on Mon Mar 12, 2012 12:32 am

I wonder why no-one has replied to this thread? This could be most fascinating.

I currently have 2 types of visual aura. Sometimes just one, sometimes both.
  • Raindrops. Concentric ixpanding ripples. A bit like liking at a perfect reflection which is then distoted by ripples from raindrops.
  • Ghost vision. It's probably has a more scientific name but I have no idea what it is. Objects shimmer out of view. It's not blind spots as such, it's just what you are looking at one moment disappears the next. For example a person' face loses all it's features. It's not blurry as such, but I can't detect the mouth nose eyes etc. I was in a supermarket to buy some coffee recently and when I got to the area where the coffee should be, I couldn't see any thing on the shelves although I could vaguely make out the price labels. It's not that the shelves looked empty, it's just that I couldn't see anything on them. It's very hard to describe. I'm guessing this is what Lewis Carroll was trying to describe with the the way the Cheshire cat would appear/disappear in Alice's Adventures in Wonderland.
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Re: What kind of aura do you have?

Post by Broadhoj on Fri Mar 23, 2012 8:41 am

Not sure about the Cheshire Cat bit but I believe the 'Alice in Wonderland' syndrome relates to seeing things as if they are really big (close) or really small (far away).
I also get uncontollable muscle spasm before and after my migraines but not during (rather bizarrely).

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Re: What kind of aura do you have?

Post by Tee on Fri Mar 23, 2012 9:42 pm

Alice in Wonderland can come in 2 kinds - either you see stuff really big or really small - or you feel it in your body - ie I get it in my hands and chin!! - They feel like they are 2 - 4 meters big - like your wearing one of those massive sponge hands hee hee - It does not hurt, and I always find it interesting when it happens........ I know I am odd.

Also thought I should add this link here - http://migrainetalk.forumotion.co.uk/t250-types-of-aura

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Re: What kind of aura do you have?

Post by Tee on Fri Mar 23, 2012 9:45 pm

Broadhoj - Have you had your Magnesium levels checked?

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Re: What kind of aura do you have?

Post by pīwakawaka on Sat Mar 24, 2012 12:46 am

From what I understand I actually have Negative scotoma (blind spots), but the brain "fills in" the missing information. For example: I look at a wall with a regularly patterned wallpaper, and on that wall is hanging a picture. If a blind spot happens to cover the area where the picture is, the I see the patterned wallpaper where the picture should be. I am totally unaware that the picture even exists until I move my eyes and the picture comes into view as the blind spot moves away from it.

Believe it or not, we all perform this "trick" all the time with our blindspot (one in each eye where the optic nerve passes through the retina). The brain fills in the missing information by making assumptions about the information around the edge of the blindspot.

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Re: What kind of aura do you have?

Post by Tee on Sat Mar 24, 2012 3:38 am

Thats interesting - I will look out for that........... I do get the missing faces a lot...............

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Re: What kind of aura do you have?

Post by pīwakawaka on Sat Mar 24, 2012 8:32 am

Have a look at these:

http://www.richardgregory.org/papers/percep_filling/perceptual-filling-scotomas.pdf
http://www.acucentre.com.au/Neuro01/Phantoms/Phant5.pdf
http://en.wikipedia.org/wiki/Filling-in

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