Harry Kempen
In the 1990s, Kempen and Hubert Hermans developed a new approach in cultural psychology around the concept of the dialogical self. In 1993, they published the seminal work "The dialogical self: Meaning as movement", and published several articles in "American Psychologist", "Journal of Personality" and "Theory & Psychology". Despite their success Kempen suffered from depression. In 2000, he died in Nijmegen four days before his retirement from the Radboud University. At the university he is remembered by as the "personification of cultural psychology."Articles, a selection:
Argumentation theory
Doug Walton developed a distinctive philosophical theory of logical argumentation built around a set of practical methods to help a user identify, analyze and evaluate arguments in everyday conversational discourse and in more structured areas such as debate, law and scientific fields. There are four main components: argumentation schemes, dialogue structures, argument mapping tools, and formal argumentation systems. The method uses the notion of commitment in dialogue as the fundamental tool for the analysis and evaluation of argumentation rather than the notion of belief. Commitments are statements that the agent has expressed or formulated, and has pledged to carry out, or has publicly asserted. According to the commitment model, agents interact with each other in a dialogue in which each takes its turn to contribute speech acts. The dialogue framework uses critical questioning as a way of testing plausible explanations and finding weak points in an argument that raise doubt concerning the acceptability of the argument.