I have a question

John Hasenkam johnh at faraway.hgmp.mrc.ac.uk
Thu Dec 30 06:09:16 EST 2004


Did a quick search on Fontana and Buss, they're still pushing that bus so if
you're still interested in standing behind it ...
http://www.vcu.edu/complex/discussion/archive0497/0034.html

http://www.kli.ac.at/theorylab/AuthPage/F/FontanaW.html
Proceedings of the National Academy of Sciences, Vol 91, 757-761, Copyright
© 1994 by National Academy of Sciences


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ARTICLE


What Would be Conserved if "the Tape were Played Twice"?
W Fontana and LW Buss


We develop an abstract chemistry, implemented in a -calculus-based modeling
platform, and argue that the following features are generic to this
particular abstraction of chemistry; hence, they would be expected to
reappear if "the tape were run twice": (i) hypercycles of self-reproducing
objects arise; (ii) if self-replication is inhibited, self-maintaining
organizations arise; and (iii) self-maintaining organizations, once
established, can combine into higher-order self-maintaining organizations.


"Michael Olea" <oleaj at sbcglobal.net> wrote in message
news:BDF8B7C2.E471%oleaj at sbcglobal.net...
> in article 41d36b5a at dnews.tpgi.com.au, John Hasenkam at johnh at faraway.
wrote
> on 12/29/04 5:59 PM:
>
> > There is a very rare condition when a person can no longer perceive
> > movement, only see a series of still shots. Don't know the name of the
> > condition, probably related to damage to the visual - parietal areas
> > (ventral stream?).
>
> Ramachandran, in "Phantoms in the Brain" refers to it simply as "motion
> blindness". He discusses the case of a Swiss woman who had bilateral
damage
> to MT.
>
> >
> >
> > <behdadm at gmail.com> wrote in message
> > news:1104189924.193906.161060 at z14g2000cwz.googlegroups.com...
> >> Hi,
> >>
> >> I think you are wrong.
> >>
> >> "Handbook of Perception and Human Performance" page 16-8:
> >>
> >> "It is sometimes mistakenly claimed that the peripheral retina is more
> >> sensitive to motion than the fovea. In fact the threshold of motion
> >> increases steadily with eccentricity"
> >>
> >> Although the rods are more sensitive to motion than cones, there are
> >> many other factors that can influence the motion sensitivity of fovea
> >> and other parts of field of view. For example, each receptor is
> >> connected to one ganglion cell in the fovea, but at the periphery 25
> >> receptors are connected to 1 ganglion.
> >>
> >> What is your reference?
> >> Sorry but I didn't understand the meaning of "AoK, Ap6".
> >>
> >> Thanks
> >>
> >
> >
>





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