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I have a question

Michael Olea oleaj at sbcglobal.net
Thu Dec 30 20:34:41 EST 2004


in article 41d3e42a at dnews.tpgi.com.au, John Hasenkam at johnh at faraway. wrote
on 12/30/04 3:17 AM:

> Shit I am getting stupid, while posting the other I didn't notice I was
> downloading the article at:
> 
> http://www.iiasa.ac.at/Publications/Documents/WP-96-027.pdf

I took a quick look - 80 page paper - I'll have to put it on my stack for
now. Still plowing through papers from that discussion on CAP (I took time
out to reread Shannon's "The Mathematical Theory of Communication" so I
would be in a better position to understand the relationship of
hyperspheres, ribosomes, and the capacity of molecular mahines - information
theory of binding sites, that sort of thing). But I note this Fontana and
Buss work at first glance seems to be in the spirit of Stuart Kaufman's
autocatalytic cycles. Fontana is associated with the Santa Fe Institute, so
maybe no coincidence...

> "John Hasenkam" <johnh at faraway.> wrote in message
> news:41d3e254 at dnews.tpgi.com.au...
>> 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
>> 
>> 
>> --------------------------------------------------------------------------
> --
>> ----
>> 
>> 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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