Abstract
Intentionality in Interaction revisits some of the classical questions to be found in the original programme for second-personal studies as established in Thompson's 2001 JCS issue and sheds new light on them, witnessing the evolving dynamics of such a programme over the last decade. The contributions in this issue approach the questions of how persons share intentions, emotions, and experiences, of how interaction is shaped by and transforms affection, emotion, and cognition, and of how such interactions develop over time and provide important insights into the development of human capacities in general, both in normal and pathological cases. In this introduction, we situate the special issue in the context of social cognition in general and second-personal studies in particular. We propose an outline of a new framework to approach questions regarding interaction and its development and evolution, a framework based on a novel understanding of interaction in terms of engagement between persons.