“…The conjunction fallacy, in the form identified by Tversky and Kahneman, was studied in quantum cognition by the group of Jerome Busemeyer at Indiana University [15,16] and also as one of many other related phenomena of a non-classical nature that can occur in human decision-making processes, by the group of Emanuel Pothos at the City University of London, at the International Centre of Mathematical Modeling of Linnaeus University in Sweden (Andrei Khrennikov), and in the School of Business of Leicester University (Emanuel Haven) [16,17,18,19,20,21]. The research into the way in which quantum models can describe concepts and their combinations, including the conjunction of concepts, was largely undertaken by the group at the Center Leo Apostel of VUB, in collaboration with the Universities of British Columbia, Leicester and Gdansk [12,22,23,24,25,26,27,28,29,30,31,32,33,34]. In particular, the research that led to the identification of the conjunction effect in texts of the World-Wide Web [31] has been important to find a way to identify and investigate the conjunction effect in visual perception, as I'm going to describe in the following section, and has also led to a quantum model for the World-Wide Web itself, which we called the QWeb [34].…”