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The field of vision split is right down the middle of each eye. One side of the brain gets the two left-halves, the other the right. FWIW. Oliver Sacks' The
by Baeocystin 8y ago
The field of vision split is right down the middle of each eye. One side of the brain gets the two left-halves, the other the right. FWIW. Oliver Sacks' The Man Who Mistook His Wife For A Hat has a chapter on hemispatial neglect which is an interesting read.
(The entire book is fascinating.)
https://en.wikipedia.org/wiki/The_Man_Who_Mistook_His_Wife_for_a_Hat https://en.wikipedia.org/wiki/The_Man_Who_Mistook_His_Wife_f...
- kazinator 8y agoTry as I might, I can't find details about the field of vision split. Like how perfectly vertical and straight is the division? What is the microscopic structure like: how crisp is the line at the cellular level? Is there some messiness at the boundary with regard to which hemisphere the cones and rods are routed to? Does the division run precisely through the middle of the fovea?
- Baeocystin 8y agoThis paper should help. :) https://www.ncbi.nlm.nih.gov/books/NBK10944/ https://www.ncbi.nlm.nih.gov/books/NBK10944/ Empirically, when running tests where you wanted a clear hemisphere separation, we always used between one and two degrees off the centerline axis. This was undergrad cog sci in the 90's, so take it for what you will.
- kazinator 8y agoThanks. I see from the side bar have been hitting this site. Let's see, recently viewed items: "Poppy seeds: differences in morphine and codeine content and variation ..." "Spectrum of human tails: A report of six cases ..." "Spontaneous knotting of an agitated string ..." :)