1)Â Â Â Â Â Johannes Hauswaldt studied Luc Ciompiâ€™s affect-logic and gave an overview of his concept. Ciompi tried to overcome the System 1 / System 2 separation in decision making and wrote a book â€˜Die emotionalen Grundlagen der Denkens. Entwurf einer fraktalen Affectlogikâ€™ (1999). In his view affect is a kind of informal logic and he discerned 5 categories of affect: Alltags-Logik (e.g. appetite), Wut-Logik (anger), Angst-Logik (fear), Trauer-Logik (grief) and Freude-Logik (fun, joy). These affects are the fundamental operators of cognitive functions and can be considered as the â€˜glueâ€™ or the â€˜connecting tissueâ€™ of the human feeling and thinking, intending, deciding and action process. Kahnemannâ€™s concept of thinking and reasoning discerns two interacting systems, analytical reasoning and non-analytical reasoning. The third track model of the Maastricht-Antwerp group used Kahnemannâ€™s ideas but conceptualized gut feelings as a third track in diagnostic reasoning next to medical decision-making and medical problem-solving. Gut feelings are associated with two kinds of affect, a bad feeling (sense of alarm) or a good feeling (sense of reassurance).