Nerve, Brain and Memory Models by N. Wiener and J.P. Schadé (Eds.)

By N. Wiener and J.P. Schadé (Eds.)

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It is trivial that this sort of thing can be achieved, but it is important that by neural nets alone a very large number of cells would be necessary. The alternative, of course, is to consider cells whose fibres are not all connected and whose connections are set up by an actual growth process. We shall assume such a growth, probably electrochemically controlled, does take place during the formative period of the human being, from conception to maturity, but that subsequently the system remains anatomically fixed, and changes only functionally.

One of our central questions is now: to what extent is the fact that growth takes place in the early phase of development a factor influencing the completed system. In other words, let us start with our pre-wired form of model and examine some of its limitations, some of which exist because it has grown to the adult state, even assuming this adult state to be pre-wired. Another central consideration of this paper is the organization of the human conceptual system, and here we can only outline some suggestions in general terms, and earmark some methods for furthering such a study.

As Kleene puts it: ‘These assumptions (those embodied in neural nets) are an abstraction from the data which neurophysiology provides, The abstraction gives a model, in terms of which it becomes an exact matheReferences p . 52 40 F. H. G E O R G E matical problem to see what kinds of behaviour the model can explain. The question is left open how closely the model describes the activity of actual nerve nets; and some modifications in the assumptions lead to similar models. ’ So our aim is to narrow the field of possible conceptual models.

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