First published in English in 1970, the first chapter of the book is concerned with conditioned reactions. Jean François le Ny discusses ways in which conditioned reactions are acquired and
the laws governing their function.
The second contributor, Gérard de Montpellier, looks at different types of learning. The varying processes involved in both animal and human learning are considered, together with some
general factors and mechanisms of learning. The third section of the book by Geneviève Oléron deals with the phenomenon of transfer. Among the topics included are the determination of
transfer effects, transfer in perceptual-motor activities and explanations of transfer. In the final chapter, César Florès examines memory, forgetting and reminiscence. The discussion covers
methodology, the influence of material, the role of practice, the part played by attitudes, motivation and emotive reactions in the memory process, as well as the importance of organisation
of memory tasks on the part of the subject.