The lectures in this volume were delivered at the Sorbonne during the 1953-1954 academic year. They represent Piaget's fullest statement not only on the nature of affectivity but also on the relation of affectivity to intelligence throughout development. The topics of the lectures include: Affective vs Cognitive Function, Stages of Intellectual and Affective Development, Hereditary Organizations, The First Acquired Feelings, Affects Regulating Intentional Behavior, Intuitive Affects and the Beginning of Interpersonal Feelings, Normative Affects, Idealistic Feelings and Formation of the Personality.
Jean Piaget (1896 - 1980) was a Swiss philosopher, natural scientist and developmental theorist, well known for his work studying children, his theory of cognitive development, and his epistemological view called "genetic epistemology." In 1955, he created the International Centre for Genetic Epistemology in Geneva and directed it until his death in 1980. According to Ernst von Glasersfeld, Jean Piaget was "the great pioneer of the constructivist theory of knowing."