Talk:Depth perception
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Do we really see the world in 2D, rather than 3D
[edit]Is this true? I've read this before. Is it true? 209.86.226.34 (talk) 22:39, 18 March 2012 (UTC)
- Well, "seeing" is a multi-stage process. As explained in the intro, each eye receives a two-dimensional pattern of incoming light. The brain subconsciously combines the two patterns and uses both the binocular cues (differences in what the two eyes see) and monocular cues (lighting, motion, etc.) to reconstruct a three-dimensional representation of the world which is fed to the conscious mind. Certain optical illusions can fool the reconstruction process into creating an incorrect 3D representation. So, no, it's not 3D like a radar system is 3D, but it's also not 2D like a TV camera. -- Beland (talk) 17:53, 27 July 2016 (UTC)
Stereopsis is not a cue, is it?
[edit]I was wondering if in this part of the description...
Binocular cues include stereopsis, eye convergence, disparity,
According to the term description, stereopsis refers to the 3D perception process. So, while it uses cues like disparity, it is not a cue in itself. — Preceding unsigned comment added by 195.50.169.234 (talk) 12:44, 3 July 2015 (UTC)
In animals
[edit]I came to this article looking for a list of animals (or families of animals or whatever) that have this ability. I heard that the mantis is the only type of insect that does, and according to the article apparently some mammals do and some don't. Anyway, it would be interesting to add whatever is known. -- Beland (talk) 17:56, 27 July 2016 (UTC)
Vandalism
[edit]This article was vandalized a few months ago, but this vandalism was not corrected until today. Should this article be semi-protected to prevent this vandalism from recurring? Jarble (talk) 08:48, 6 January 2019 (UTC)
