optic nerve info. wanted

aquila1 at hotmail.com aquila1 at hotmail.com
Tue Jun 16 10:50:13 EST 1998


Thanks Richard,

Your response will help narrow my search and further refine future queries.

Sam

In article <6m3jhl$9j6$1 at denws03.mw.mediaone.net>,
  rsnorman at mw.mediaone.net (Richard Norman) wrote:
>
> In article <6m3f3i$jtp$1 at nnrp1.dejanews.com>, aquila1 at hotmail.com says...
> >
> >Hello everyone,
> >
> >I am working on a little project and need to know information / sources of
> >information regarding any work done on mapping the axons of the human optic
> >nerve.  Specifically, I need to know everything that happens after an image
is
> >processed by the retina.  I.e., is a certain color and frequency and spatial
> >location assigned to each specific axon ?  Any help you can give me is
greatly
> >appreciated.  Please don't respond at too technical a level as I am not a
> >neuroscientist but an amateur.
> >Thanks,
> >Sam
> >samuel.mason at ericsson.com
>
> There is an awful lot of stuff on optic nerve fibers, but I am not sure
> how much specifically on humans.  If you don't wan't too technical an
> answer, your best bet is first to sit in a good library and browse whatever
> they have on introductory neurobiology or vision. Also physiology texts
> also have sections on sensory information processing and vision.
>
> Depending on how much background you need, you might even start with a
> good college level intro biology text to give you the background to read
> the others.
>
> It is hard to know exactly what you want from your question.  You ask
> about "everything that happens after an image is processed by the retina".
> That means, everything in the CNS, mostly visual cortex, and that means
> a lot, indeed.  On the other hand, you ask about axons in the optic nerve,
> and that means "everything that happens inside the retina".  That is,
> the information sent to the brain in the optic nerve depends on the
> circuits in the retina itself, not in the CNS.
>
> Your question about "frequency" suggests that the search for data is
> somewhat confused with the auditory system.  Watch out!  Getting involved
> in "spatial" frequency analysis is far more technical than you want!
>
> What you want is information on the "receptive field" properties of
> retinal ganglion cells.
>
> Good luck.
>
>


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