I met a person long ago that had one hemisphere “dead” after several strokes. So their vision was cut in half in a way I couldn’t really understand before I found out about this.
So they could just see one side (left maybe) but with both eyes, like if you took a screenshot of a FPS view and completely cut off one half of the image
I literally just finished having a migraine aura (it’s only the second time I’ve had one, though no headache the first time and no headache yet now.) I was reading a bit about it and how it’s a caused by a slow wave going across one’s brain. It started in the middle of my vision on the drive home, and after I arrived it continued sweeping off to my left field of vision until it dissipated off into the periphery a few minutes ago.
It’s interesting to look at this image and imagine the wave going across the back of my right brain hemisphere. It’s also interesting how even the visual looked like the cone-shaped wave that follows a sonic boom, slowly spreading out.
And now, with such dire imagery and the potential for upcoming pain, I’m going to lie down and hope nothing else happens.
It is really cool to perceive some of the structure of your visual cortex in cases like this. Another example is watching the patterns when your eyes are closed for a while in a dark room. Those spreading waves you can sometimes see resemble the activity recorded from cortex at rest.
I met a person long ago that had one hemisphere “dead” after several strokes. So their vision was cut in half in a way I couldn’t really understand before I found out about this.
So they could just see one side (left maybe) but with both eyes, like if you took a screenshot of a FPS view and completely cut off one half of the image
I literally just finished having a migraine aura (it’s only the second time I’ve had one, though no headache the first time and no headache yet now.) I was reading a bit about it and how it’s a caused by a slow wave going across one’s brain. It started in the middle of my vision on the drive home, and after I arrived it continued sweeping off to my left field of vision until it dissipated off into the periphery a few minutes ago.
It’s interesting to look at this image and imagine the wave going across the back of my right brain hemisphere. It’s also interesting how even the visual looked like the cone-shaped wave that follows a sonic boom, slowly spreading out.
And now, with such dire imagery and the potential for upcoming pain, I’m going to lie down and hope nothing else happens.
It is really cool to perceive some of the structure of your visual cortex in cases like this. Another example is watching the patterns when your eyes are closed for a while in a dark room. Those spreading waves you can sometimes see resemble the activity recorded from cortex at rest.
Wish you a speedy post-drome. I had migraines for a year in the past, and the thought of going through that again fills me with dread.