I have a question

kenneth collins kenneth.p.collins at worldnet.att.net
Fri Dec 24 21:51:43 EST 2004


<behdadm at gmail.com> wrote in message
news:1103941854.985718.57520 at f14g2000cwb.googlegroups.com...
| Hi friends
|
| I am a mechanical engineer. For some
| stupid reason I am doing research
| on eye.
|
| The thing that I want to know is that
| which part of the retina is more
| sensitive to motion? I know that the
| fovea is more sensitive, but I am
| looking for a table or something that
| compare different parts of the
| retina.
|
| Thanks you for your help

Actually, the periphery is more
sensitive to motion.

The rods are much-fater than
the cones.

It has to be this way because
what's going on in the fovea is
already exposed to conscious-
ness, but, when something hap-
pens out in the periphery, de-
pending on it's correlated 'vect-
ors', it needs to not only be de-
tected, but it has to force atten-
tion to switch-over to it.

This requires the peripheral stuff
to be "more sensitive to motion"
[which is not the way I'd say it].

There is a =general= rule for all
such considerations, and it applies
rigorously across the whole nervous
system. This general rule even determ-
ines the shape of the body :-]

[For those who have it, the necessary
"vector" stuff is given in AoK, Ap6.]

k. p. collins






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