Jun Tani has been interested in a wide range of research topics, including developmental psychology, psychiatric disorders, higher-order cognition, phenomenological consciousness, primary intersubjectivity, and artificial life. His group has conducted various robotics experiments using the frameworks of complex adaptive systems and the free energy principle. His aim is to provide possible accounts for some of the nontrivial problems in the aforementioned interdisciplinary research domains by examining emergent phenomena observed in such robotics experiments.