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- From: andrick@sun.rhrk.uni-kl.de (Ulf Andrick [Biologie])
- Subject: Re: Biologically Plausible Dynamic Artificial Neural Networks
- Message-ID: <1993Jan11.140108.8022@rhrk.uni-kl.de>
- Sender: news@rhrk.uni-kl.de
- Organization: University of Kaiserslautern, Germany
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- References: <1993Jan8.191256.28193@news.arc.nasa.gov>
- Date: Mon, 11 Jan 1993 14:01:08 GMT
- Lines: 48
-
- doshay@ursa.arc.nasa.gov (David Doshay) writes:
- : Because M.D. Ross was the first reference in the posting, and I work in her
- : lab at NASA Ames, I feel some need to post also. Dr. Ross is a neuroanatomist
- : and we study nerves in the vestibular macula at the ultrastructural level.
- :
- : First, I have never heard her refer to a DANN in the manner the post does, and in
- : the post she is referenced right after this acronym.
- :
- : Second, with respect to Ulf's posting, we do use both artificial neural net
- : models as well as electrophysiological models here in the Biocomputation
- : Center. There are some questions that are best answered with one of those models
- : because they are too hard to answer with the other type. We have far more time
- : in the 'real' models than the artificial, but some networking questions are
- : still best posed in the context of an artificial neural net just because of
- : the huge computational requirements for networks of more realistic nerves. We
- : are, however, scaling up our 'real' models to ask such questions. In those cases
- : we plan to burn several hundred hours of CRAY YMP time. Thank goodness (and the
- : US taxpayers) that NASA has the supercomputers.
-
- I just wanted to counter the view that Artificial Neural
- Networks (ANN) are suitable to explain everything in the brain.
- Further more, the posting I answered to referred to small
- neural systems in simple organisms, and here, I don't see a
- field for the application of ANN. I think of the stomatogastric
- ganglion of the crab or the flight generator of the locust
- when talking about small neural systems.
-
- I'm aware that some work has been done with ANNs to simulate
- large networks as in the human cortex.
-
- But I didn't mind to present a view which was perhaps a little
- one-sided, because I wanted to see the reactions, esp. of AI people.
- But somehow, there was not much response, at least I saw
- no other replies in bionet.neuroscience.
-
- :
- : These statements are mine, and not those of the Biocomputation Center
- :
- : David doshay@soma.arc.nasa.gov
- :
- : The thought police insist I tell you:
- : my thoughts, not NASA's
-
- --
- Ulf R. Andrick andrick@rhrk.uni-kl.de
- FB Biologie - Tierphysiologie
- Universitaet Was du nicht selber weiszt,
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