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:
Dialogue tree
The concept of the dialogue tree has existed long before the advent of video games. The earliest known dialogue tree is described in "The Garden of Forking Paths," a 1941 short story by Jorge Luis Borges, in which the combination book of Ts'ui Pên allows all major outcomes from an event branch into their own chapters. Much like the game counterparts this story reconvenes as it progresses (as possible outcomes would approach n^m where n is the number of options at each fork and m is the depth of the tree).