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Published online by Cambridge University Press: 28 February 2024
Jean-Pierre Changeux's Neuronal Man attempts to define mental activity, that is thought, with respect to the neurophysiology of the brain.*
Since antiquity, the historical account of these problems has undergone the examination of classical notions: what is a mental image, a concept, a representation? Changeux, who accepts these traditional points of departure, as well as the notion of signification, aims to clarify the physical, neurophysiological counterparts of these notions, in order to arrive at less simplistic terms: image de memoire “memory image,” later - objet mental “mental object,” and still later - objet de mémoire “memory object.” Behind these terms lies transition to neurophysiology, with the notion of engram, and finally with the notion of trace, a notion which is precise but very general, since the substantive reality of these traces, their anatomy and physiology in the brain has yet to be determined.