Abstract. The ways in which information is represented, processed, and stored in the nervous system of primates as shown by recording from single neurons are considered. 1) Individual stimuli, objects, or responses (termed events) are coded as the pattern of firing across a population of neurons. That is. ensemble encoding rather than "grandmother cell " encoding is used. Evidence for this from recordings in temporal cortical areas involved in face recognition is presented. 2) In order to clarify how the nervous system would function with such ensemble encoding, and to clarify how single neurons might respond in such a system, a theoretical analysis of information representation and storage in matrix memories formed by neuronal networks is presented. It is shown that such distributed information processing and storage has a number of advantages, including completion of an incomplete pattern, generalization, graceful degradation when the system is damaged o
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