Talk:Visual cortex
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What's the "input" of the Visual Cortex? It gets signals from the eyes, are those signals pure "pixel information", are are the pixels detected by the rods and cones already processed into something else by the retina?
- Before the "signal" reaches the visual cortex, it gets processed by the retina, which transforms images in several ways - first of all along specific color axes, and also a general "edge-detection" sort of transformation. Then it runs through the optic chiasm, which repartitions the information from both eyes into right and left hemispheres. THEN it goes to the LGN (which may or may not be considered part of the visual cortex), before going to the VC proper. So, in brief, yes, they are already heavily processed. Graft 04:05, 19 May 2005 (UTC)
[edit] Merge
- I merged the info in primary visual cortex to this page and set a redirect on that page to here. Let me know if you have any questions. Semiconscious (talk ยท home) 09:19, 17 August 2005 (UTC)
- I've also merged all the info from the individual visual areas (V1-V5) to this page as well. I've set redirects from those pages to point here. 20:54, 17 August 2005 (UTC)
- Maybe there's not much in the separate V sections right now, but it seems to me that there's plenty to be written about each, and thus that they'll deserve their own articles eventually. I'll start expanding MT and see whether people think it needs it's own page. Epugachev 03:36, 3 December 2006 (UTC)
[edit] Weasel?
Anybody care to explain what the section V2 warning
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refers to?
[edit] Uncertain
I encountered this problem in the LGN page and fixed it. It didn't explicitly state there exists a right and a left hemisphere for the LGN, but then made references to ipsilateral vs. contralateral eye. I researched it a bit and as it turned out there were two sides tot eh LGN. is it the same case with the visual cortex? because on page 412 of "from neuron to brain", figure 20.5 makes reference to the "Right primary visual cortex" Paskari 18:15, 18 February 2007 (UTC)
