Blind and Visually Impaired Community
↑
5
↓
Perspective perception? (self.Blind)
submitted by julieateigen
Hello!
I'm working on an architecture project about urban navigation for the blind and visually impaired. I saw this Tommy Edison youtube video of him drawing, where he says "I know I drew the cat with only two legs, but from where I'm sitting you can only see two."
From what I know Tommy was born blind, so that got me wondering how blind people perceive perspective. Anyone care to share their thoughts and experiences?
Additional questions:
Would an embossed perspective drawing be successful in describing a room or cityscape to a blind person?
How would you as a blind person prefer an architect to sketch up their ideas for you? (Models, embossed drawings, something entirely different?)
Here is the video for anyone interested:
$1
I'm working on an architecture project about urban navigation for the blind and visually impaired. I saw this Tommy Edison youtube video of him drawing, where he says "I know I drew the cat with only two legs, but from where I'm sitting you can only see two."
From what I know Tommy was born blind, so that got me wondering how blind people perceive perspective. Anyone care to share their thoughts and experiences?
Additional questions:
Would an embossed perspective drawing be successful in describing a room or cityscape to a blind person?
How would you as a blind person prefer an architect to sketch up their ideas for you? (Models, embossed drawings, something entirely different?)
Here is the video for anyone interested:
$1
FrankenGretchen 3 points 3y ago
3D models of a thing like a cityscape would be fascinating to explore. My mom loved these.
Pop-up books are a way for kids to explore this concept.
Pop-up books are a way for kids to explore this concept.
julieateigen [OP] 2 points 3y ago
Will give this a go for sure!
notthatkindadoctor 2 points 3y ago
You might consider 3D printing, especially if the fine details aren’t as essential as the more general details. It’s super cheap and can be done at many libraries for free.
The education and psychology literature about perceiving things like depth cues and perspective cues has suggested in general that people blind from early in life don’t usually interpret a tactile graphic the way a sighted person might expect - *even for simple object identification* but especially when the tactile graphic is just copying visual cues into raised/embossed paper. Good tactile graphics require translation and iteration and thinking differently, not just direct conversion to embossed or thermal paper.
The best way would be to collaborate with a blind colleague or get feedback from blind users and start to feel out what’s more successful or less successful. I know of an example where students designed a 3D printed apartment floor plan and had blind and sighted-but-blindfolded users explore it and the way the blind users explored it haptically was very different. But the users did seem to like the 3D element, which is missing from an embossed birds-eye floorplan.
The education and psychology literature about perceiving things like depth cues and perspective cues has suggested in general that people blind from early in life don’t usually interpret a tactile graphic the way a sighted person might expect - *even for simple object identification* but especially when the tactile graphic is just copying visual cues into raised/embossed paper. Good tactile graphics require translation and iteration and thinking differently, not just direct conversion to embossed or thermal paper.
The best way would be to collaborate with a blind colleague or get feedback from blind users and start to feel out what’s more successful or less successful. I know of an example where students designed a 3D printed apartment floor plan and had blind and sighted-but-blindfolded users explore it and the way the blind users explored it haptically was very different. But the users did seem to like the 3D element, which is missing from an embossed birds-eye floorplan.
DrillInstructorJan 2 points 3y ago
You can hear perspective, or at least I can hear something that figures with what I know perspective looks like (I used to be able to see.) If you're ten feet from me and I walk past, the sound of you talking on your phone moves past at a certain speed. If you're twenty feet from me the sound moves past more slowly. That's parallax at least.
julieateigen [OP] 1 points 3y ago
Ah! This is good! Thank you!
dontwriteonme 1 points 3y ago
This is awesome!
BlakeBlues 2 points 3y ago
Check out Journal of British Visual Impairment and Journal of Visual Impairment and Blindness. There may be something about perspective there. I haven't heard anything on these though that's neat.
notthatkindadoctor 3 points 3y ago
Good suggestions. Also Cognitive Psychology journals and Neuroscience journals have tons of research into haptic versus visual perception (including specific to early blind individuals) and the ways perception differs in those modalities.
The researcher names Klatsky and Lederman would be a good start to find more citations to relevant stuff. Obviously for those without free institutional access to journal articles, use sci-hub.tw and paste in the full article title or DOI to get instant free access (in PDF format only, sadly).
Also, the Journal of Blindness Innovation and Research might have something relevant.
The researcher names Klatsky and Lederman would be a good start to find more citations to relevant stuff. Obviously for those without free institutional access to journal articles, use sci-hub.tw and paste in the full article title or DOI to get instant free access (in PDF format only, sadly).
Also, the Journal of Blindness Innovation and Research might have something relevant.
BlakeBlues 2 points 3y ago
Yes Lederman and Klatsky would be good! Oh that's a cool journal I haven't seen yet! Lahav might be another good name
CloudyBeep 3 points 3y ago
JBIR is run by the NFB.
BlakeBlues 2 points 3y ago
That's good to know! Thanks
there is also a SE Asian, Australian, Now Zealand journal, but I don't remember it offhand. Doesn't typically have the research from India, though some of it is less applicable because of their social climate and infrastructure.
there is also a SE Asian, Australian, Now Zealand journal, but I don't remember it offhand. Doesn't typically have the research from India, though some of it is less applicable because of their social climate and infrastructure.
JynxBJJ 1 points 3y ago
Not sure if this is precisely what you’re looking for, but let me tell you my perspective on perspective. I have lost almost all depth perception in the past 11 years. However, I did martial arts for years, specifically Moyie Thai, I’m hoping that dictation gets it right…
If I try and reach out and touch you on the nose After we’ve been talking for a few minutes,, I’m quite likely to poke you in the eye or miss you completely. However, if we’ve been speaking for any length of time, and I try to punch you in the nose, I have a 98% accuracy. And yes, I actually did a test with several people because I’m a nerd and found it interesting.
I think body memory has something to do with perspective for those of us who were born sided and who have lost our site over the years. I still have vision, just no depth perception.
Not sure this answered your question, your project sounds interesting. Just be aware black people can’t do overhangs LOL
If I try and reach out and touch you on the nose After we’ve been talking for a few minutes,, I’m quite likely to poke you in the eye or miss you completely. However, if we’ve been speaking for any length of time, and I try to punch you in the nose, I have a 98% accuracy. And yes, I actually did a test with several people because I’m a nerd and found it interesting.
I think body memory has something to do with perspective for those of us who were born sided and who have lost our site over the years. I still have vision, just no depth perception.
Not sure this answered your question, your project sounds interesting. Just be aware black people can’t do overhangs LOL
This nonprofit website is run by volunteers.
Please contribute if you can. Thank you!
Our mission is to provide everyone with access to large-
scale community websites for the good of humanity.
Without ads, without tracking, without greed.
scale community websites for the good of humanity.
Without ads, without tracking, without greed.
©2023 HumbleCat Inc • HumbleCat is a 501(c)3 nonprofit based in Michigan, USA.