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- Path: sparky!uunet!biosci!agate!stanford.edu!rock!taco!csemail.cropsci.ncsu.edu!samodena
- From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
- Newsgroups: bionet.info-theory
- Subject: Re: Animate Nature and Noise
- Message-ID: <1993Jan28.002744.24154@ncsu.edu>
- Date: 28 Jan 93 00:27:44 GMT
- References: <9301271804.AA01175@net.bio.net> <Pine.3.03.9301271426.J14804-b100000@spock.creare.com>
- Sender: news@ncsu.edu (USENET News System)
- Distribution: bionet
- Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
- Lines: 32
-
- In article <Pine.3.03.9301271426.J14804-b100000@spock.creare.com> gda@creare.com (Gray Abbott) writes:
- >
- >
- >On 27 Jan 1993, Venkatesh Murthy wrote:
- >
- >> is interested. He claims that in a lot of sensory systems, the coding
- >> is close to being maximally efficient given the noise and the statistics
- >> of naturally occurring stimuli.
- >
- >This is what I always heard. The fully dark-adapted eye in humans can
- >detect a single photon; if the ear were more sensitive, it would hear
- >Brownian motion, etc. (I don't have ready references for either of these;
- >they were widely accepted beliefs when I was working in perception.)
-
- Well, Gray, I'm supposing that when one puts a large sea shell to the
- ear, that roar of the ocean one hears is either Brownian motion or the
- noise of blood cells being pumped through the capillaries within the
- ear. :^)
-
- Steve
- ---
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