Received: by alpheratz.cpm.aca.mmu.ac.uk id EAA06342 (8.6.9/5.3[ref pg@gmsl.co.uk] for cpm.aca.mmu.ac.uk from fmb-majordomo@mmu.ac.uk); Wed, 26 Jul 2000 04:44:54 +0100 Message-Id: <200007260342.XAA18896@mail5.lig.bellsouth.net> From: "Joe E. Dees" <joedees@bellsouth.net> To: memetics@mmu.ac.uk Date: Tue, 25 Jul 2000 22:46:52 -0500 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: RE: Simple neural models In-reply-to: <LPBBICPHCJJBPJGHGMCIOEKCCHAA.ddiamond@ozemail.com.au> References: <4.3.1.0.20000725165641.00c30c70@pop3.htcomp.net> X-mailer: Pegasus Mail for Win32 (v3.01b) Sender: fmb-majordomo@mmu.ac.uk Precedence: bulk Reply-To: memetics@mmu.ac.uk
From: "Chris Lofting" <ddiamond@ozemail.com.au>
To: <memetics@mmu.ac.uk>
Subject: RE: Simple neural models
Date sent: Wed, 26 Jul 2000 13:51:48 +1000
Send reply to: memetics@mmu.ac.uk
>
>
The myth of the engram lives on...
>
> > -----Original Message-----
> > From: fmb-majordomo@mmu.ac.uk [mailto:fmb-majordomo@mmu.ac.uk]On Behalf
> > Of Mark M. Mills
> > Sent: Wednesday, 26 July 2000 8:39
> > To: memetics@mmu.ac.uk
> > Subject: RE: Simple neural models
> >
> >
> > Derek,
> >
> > At 11:06 AM 7/25/00 +0200, you wrote:
> >
> > >Derek:
> > >Yes, I can follow that. Either neurotransmitter is released or it isn't.
> > >Fair enough.
> > >
> > >Mark:
> > >there is an inherent
> > >memory storage system involved. Knowing the 'charge state' at
> > one moment,
> > >implies knowing the previous state. Voila!, memetic memory.
> > >
> > >Derek:
> > >Here you lose me. Why does the binary state of a nerve cell imply any
> > >inherent memory, or memory of any kind?
> >
>
> take an XOR gate and feed the output back onto *one* of the inputs and you
> have a cyclic system and so a memory mechanism in the form of an idefinite
> memory. Holland nicely summarises this in Holland, J.H., (2000) "Emergence :
> >From Chaos to Order" OUP. You want more 'meat'? get a text on neural nets
> etc.
>
> Note that an XOR gate picks up DIFFERENCE rather than SAMENESS and as I have
> noted elsewhere our senses are highly tuned to detecting difference and
> habituating to sameness.
>
> >From a neurological perspective create a neuron with two inputs and an
> output with only one input 'up' and the other 'down' to fire. take a loop
> back to one of the inputs and hey presto, indefinite memory. The two inputs
> can be more, just that the general A XOR B is maintained at the soma firing
> position.
>
> To create the XOR you initially need to use feedforward processes, your
> basic neural network of in-hidden-out. This system is good for pattern
> recognition where you use weights to get the system to learn. Use this
> system to create an XOR system and within that use the feedback loop.
>
> Thus feedforward creates the conditions within which you can create an XOR.
> Sameness sets the context for processing and remembering difference.
>
> It follows that synchronisation of a set of neurons within a network can
> lead to a group memory and so on up the hierarchy...
>
> Best,
>
> Chris.
> ------------------
> Chris Lofting
> websites:
> http://www.eisa.net.au/~lofting
> http://www.ozemail.com.au/~ddiamond
>
>
>
>
>
>
> ===============================================================
> This was distributed via the memetics list associated with the
> Journal of Memetics - Evolutionary Models of Information Transmission
> For information about the journal and the list (e.g. unsubscribing)
> see: http://www.cpm.mmu.ac.uk/jom-emit
>
>
===============================================================
This was distributed via the memetics list associated with the
Journal of Memetics - Evolutionary Models of Information Transmission
For information about the journal and the list (e.g. unsubscribing)
see: http://www.cpm.mmu.ac.uk/jom-emit
This archive was generated by hypermail 2b29 : Wed Jul 26 2000 - 04:45:46 BST