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An attempt is made to show how the practical problems of programming a language machine lead to a particular set of hypotheses about human cognitive processes. The synthesis of cognitive behavior requires a listing of conditions necessary and sufficient to account for man's abilities: (1) symbolization of the impinging environment in terms of receptor-neuron activity; (2) abstraction of similarities and differences in the neural coding; (3) recoding some of these abstractions into adaptive muscular actions; and (4) remembering or forgetting those symbols whose adaptive utility has vanished. Each of these capabilities must be present in any system that synthesizes human cognitive behavior. All of these capabilities are required in the intelligent manipulation of language. (Author)
Simmons et al. (Wed,) studied this question.
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