3 ms·

I think this is the relevant paper [1]. It appears to be about the inverse problem, though. The guy in the article has a healthy brain but damaged eyes, so hi

I think this is the relevant paper [1]. It appears to be about the inverse problem, though. The guy in the article has a healthy brain but damaged eyes, so his brain isn't getting any visual signals to interpret. The patients in the paper have healthy eyes but damaged brains, so their brain is getting visual signals but it can't interpret them. That is interesting regardless. It's like the brain lost the ability to process visual data into images, but is still able to derive some information from it. Makes me wonder how many variations of sight there are. Is it possible to detect motion without sight? Or to have depth perception without sight? I guess depth perception without sight would be like complete colorblindness, almost like lidar. 1: https://elifesciences.org/articles/67573 https://elifesciences.org/articles/67573

least 3y ago
The brain is actually receiving signals from the eye, as far as they can tell, but he cannot see [1]. [1] https://youtube.com/watch?v=I7aprt7l42s&t=213 https://youtube.com/watch?v=I7aprt7l42s&t=213
graphe 3y ago
Yes. A brain damaged blind man walked past obstacles without seeing what to avoid. https://www.newscientist.com/article/dn16324-blind-man-sees-his-way-past-obstacles/ https://www.newscientist.com/article/dn16324-blind-man-sees-... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2747232/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2747232/ Since the eye is signaling and he his brain is also healthy, he may have more cues that are not visual. Object avoidance and facial recognition might not be visual according to n=1. Kwon and related researchers have confirmed that the brain can rewire to brain to use more primative means of visualizing, so her saying never say never may be to temper expectations to the layman. I'd be very surprised if she didn't know of this research.

least 3y ago

The brain is actually receiving signals from the eye, as far as they can tell, but he cannot see [1]. [1] https://youtube.com/watch?v=I7aprt7l42s&t=213 https://youtube.com/watch?v=I7aprt7l42s&t=213

graphe 3y ago

Yes. A brain damaged blind man walked past obstacles without seeing what to avoid. https://www.newscientist.com/article/dn16324-blind-man-sees-his-way-past-obstacles/ https://www.newscientist.com/article/dn16324-blind-man-sees-... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2747232/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2747232/ Since the eye is signaling and he his brain is also healthy, he may have more cues that are not visual. Object avoidance and facial recognition might not be visual according to n=1. Kwon and related researchers have confirmed that the brain can rewire to brain to use more primative means of visualizing, so her saying never say never may be to temper expectations to the layman. I'd be very surprised if she didn't know of this research.